# What is \*security\_class\* of a system? **URL:** \ **Category:** Third Party Developers\ **Tags:** api, esi, tool\ **Created:** [May 15, 2022, 9:39pm UTC](https://forums.eveonline.com/t/what-is-security-class-of-a-system/362759 "2022-05-15T21:39:23Z")\ **Posts on this page:** 16\ **Page:** 1
**Author:** ![Emotional\_Support\_Clown](https://sea1.discourse-cdn.com/eveonline/user_avatar/forums.eveonline.com/emotional_support_clown/32/310422_2.png) [@Emotional\_Support\_Clown](https://forums.eveonline.com/u/Emotional_Support_Clown)\ **Post date:** [May 15, 2022, 9:39pm UTC](https://forums.eveonline.com/t/what-is-security-class-of-a-system/362759/1 "2022-05-15T21:39:23Z")
In the ESI response of the `/universe/systems/{system_id}/` route, see [EVE Swagger Interface](https://esi.evetech.net/ui/#/Universe/get_universe_systems_system_id), there is a value in the model called `security_class string`. What is this value for and is there documentation for it? From the output of a system detail query for a route for example, it is a combination of letter classifications with numeric subclassification. ```auto PS> Get-EveRoute -OriginSystemName jita -DestinationSystemName dodixie -RouteFlag insecure -ShowSystemDetails -Parallel |select route_index, name, security_class, security_status|ft route_index name security_class security_status ----------- ---- -------------- --------------- 1 Jita B 0.945913136005402 2 Ikuchi A 0.986814618110657 3 Tunttaras B 0.88531219959259 4 Nourvukaiken B 0.816556751728058 5 Tama C1 0.28255569934845 6 Sujarento C1 0.311135679483414 7 Nagamanen C1 0.304725885391235 8 Deven D2 0.317772477865219 9 Fliet D2 0.345510542392731 10 Heydieles D2 0.306625187397003 11 Old Man Star D2 0.335686594247818 12 Villore D1 0.50650942325592 13 Erme B 0.798155605792999 14 Botane B 0.875440120697021 15 Dodixie B 0.868406713008881 ``` How do I interpret this _security\_class_ for ingame usefulness? ---
**Author:** ![Geo\_Eclipse\_Oksaras](https://sea1.discourse-cdn.com/eveonline/user_avatar/forums.eveonline.com/geo_eclipse_oksaras/32/500781_2.png) [@Geo\_Eclipse\_Oksaras](https://forums.eveonline.com/u/Geo_Eclipse_Oksaras)\ **Post date:** [May 15, 2022, 10:11pm UTC](https://forums.eveonline.com/t/what-is-security-class-of-a-system/362759/2 "2022-05-15T22:11:31Z")
Quick search suggests it refers to the ore types. ---
**Author:** ![Emotional\_Support\_Clown](https://sea1.discourse-cdn.com/eveonline/user_avatar/forums.eveonline.com/emotional_support_clown/32/310422_2.png) [@Emotional\_Support\_Clown](https://forums.eveonline.com/u/Emotional_Support_Clown)\ **Post date:** [May 15, 2022, 10:12pm UTC](https://forums.eveonline.com/t/what-is-security-class-of-a-system/362759/3 "2022-05-15T22:12:24Z")
Yes I saw that, but, not much further detail on it. What specifics to do with ore types? How is the classification and subclassification done? ---
**Author:** ![Geo\_Eclipse\_Oksaras](https://sea1.discourse-cdn.com/eveonline/user_avatar/forums.eveonline.com/geo_eclipse_oksaras/32/500781_2.png) [@Geo\_Eclipse\_Oksaras](https://forums.eveonline.com/u/Geo_Eclipse_Oksaras)\ **Post date:** [May 15, 2022, 10:14pm UTC](https://forums.eveonline.com/t/what-is-security-class-of-a-system/362759/4 "2022-05-15T22:14:55Z")
@CCP_Aurora@Steve_Ronuken Maybe they know ---
**Author:** ![Blacksmoke16](https://sea1.discourse-cdn.com/eveonline/user_avatar/forums.eveonline.com/blacksmoke16/32/376589_2.png) [@Blacksmoke16](https://forums.eveonline.com/u/Blacksmoke16)\ **Post date:** [May 16, 2022, 3:13am UTC](https://forums.eveonline.com/t/what-is-security-class-of-a-system/362759/5 "2022-05-16T03:13:22Z")
I always assumed it related to: ![image](https://global.discourse-cdn.com/eveonline/original/4X/4/a/2/4a24d3c1c6c3fe36f5c85c6a401e19be3d1ca56d.jpeg) ---
**Author:** ![Emotional\_Support\_Clown](https://sea1.discourse-cdn.com/eveonline/user_avatar/forums.eveonline.com/emotional_support_clown/32/310422_2.png) [@Emotional\_Support\_Clown](https://forums.eveonline.com/u/Emotional_Support_Clown)\ **Post date:** [May 16, 2022, 6:36am UTC](https://forums.eveonline.com/t/what-is-security-class-of-a-system/362759/6 "2022-05-16T06:36:15Z")
Some systems have no _security\_class_ classification at all. ```auto PS> Get-EveRoute -OriginSystemName 'new eden' -DestinationSystemName '4-HWWF' -RouteFlag shortest -ShowDetails -Parallel |where {!$_.security_class} |select route_index, name, security_class, security_status|ft route_index name security_class security_status ----------- ---- -------------- --------------- 1 New Eden 0.260553807020187 42 DAYP-G -0.392761290073395 ``` ```auto PS> Get-EveSystemKills |select -ExpandProperty system_id|Get-EveSystem|where {!$_.security_class}|select name, security_class, security_status|ft name security_class security_status ---- -------------- --------------- Akidagi 0.444938838481903 S-1LIO -0.100362598896027 Hasama 0.271440237760544 WW-KGD -0.179159358143806 Hikkok… 0.342755079269409 Aivonen 0.377330243587494 Hykani… 0.24685937166214 Pyneka… 0.239632815122604 Reitsa… 0.189510479569435 Tsuruma 0.542633414268494 Kinakka 0.415623009204865 XFBE-T -0.185925513505936 Uuhula… 0.492079496383667 Uchomi… 0.494726926088333 Kedama 0.33846440911293 ... ``` ---
**Author:** ![Gerard\_Amatin](https://sea1.discourse-cdn.com/eveonline/user_avatar/forums.eveonline.com/gerard_amatin/32/481361_2.png) [@Gerard\_Amatin](https://forums.eveonline.com/u/Gerard_Amatin)\ **Post date:** [May 16, 2022, 6:55am UTC](https://forums.eveonline.com/t/what-is-security-class-of-a-system/362759/7 "2022-05-16T06:55:53Z")
Interesting! New Eden is a bit of a special system (as the first system that people coming from Earth encountered after taking the EVE gate in lore) but I don’t know why a random system in Vale of the Silent, DAYP-G, would also have no security class classification, whatever that may be. ---
**Author:** ![Emotional\_Support\_Clown](https://sea1.discourse-cdn.com/eveonline/user_avatar/forums.eveonline.com/emotional_support_clown/32/310422_2.png) [@Emotional\_Support\_Clown](https://forums.eveonline.com/u/Emotional_Support_Clown)\ **Post date:** [May 16, 2022, 6:58am UTC](https://forums.eveonline.com/t/what-is-security-class-of-a-system/362759/8 "2022-05-16T06:58:29Z")
_Secret sauce_ doesn’t apply here since it is _emitted_ from the ESI route. Total systems ```auto PS> (Get-EveSystems|measure).count 8435 ``` Systems with no _security\_class_ ```auto PS> ((Get-EveSystems|ForEach-Object -Parallel {Get-EveSystem -SystemId $_ | where {!$_.security_class}})|measure).count 3295 ``` Yes I asked the computer at the end of universe and the answer is **not** _42_. Thus 39.06342620035566093657% of the universe has no security classification. Total number of wormholes (J numbered systems) ```auto PS> ($EveSystemDetail|where {$_.name -match'^J([0-9]){6}'}|measure).Count 2602 ``` All wormholes have no security classification ```auto PS> ($EveSystemDetail|where {$_.name -match'^J([0-9]){6}' -and !$_.security_class}|measure).Count 2602 ``` Wormholes (J numbered systems) make up 30.84765856550088915234% of the universe. Thus 8.21576763485477178423% of the universe excluding wormholes (J numbered systems) have no security classification, giving 693 systems of the non wormhole universe, has no security classification. ```auto PS> ($EveSystemDetail|where {$_.name -notmatch '^J([0-9]){6}' -and !$_.security_class}|measure).Count 693 ``` There is some 400 systems named AD_nnn_ and V-_nnn_, also with no security classification. ```auto PS> ($EveSystemDetail|where {!$_.security_class -and $_.name -match '^AD|^V-([0-9])'}|measure).Count 400 ``` I presume perhaps Abyssal (dungeon) space and something else, VIP perhaps? 200 AD_nnn_ and 200 V-_nnn_ systems. So that leaves 293 non wormhole and non AD_nnn_ / V-_nnn_ systems with no security classification, thus 3.47362181387077652638% of the universe that is normal space has no security classification. ```auto PS> ($EveSystemDetail|where {!$_.security_class -and $_.name -notmatch '^AD|^V-([0-9])|^J([0-9]){6}'}|measure).Count 293 ``` ```auto PS> $EveSystemDetail|where {!$_.security_class -and $_.name -notmatch '^AD|^V-([0-9])|^J([0-9]){6}'}|select name, security_class, security_status|ft name security_class security_status ---- -------------- --------------- DAYP-G -0.392761290073395 WF-1LM -0.00190049782395363 D95-FQ -0.000212492246646434 ZSPJ-K -0.000276011764071882 T-P7A6 -0.00135155359748751 U1F-86 -0.000552583020180464 Y-T3JJ -0.000881463405676186 F3R-IA -0.00163099204655737 OVFN-N -0.000594331242609769 74-YTJ -0.00405423529446125 8-RS3U -0.000464034819742665 1Q-BBM -0.000488844467326999 WXNC-N -0.000553670339286327 X-L6BO -0.00131741364020854 G-EA07 -0.00105687463656068 D-PHUA -0.000938275712542236 3-HXHQ -0.00248626107349992 18A-NB -0.00163915567100048 3-J5OQ -0.000714749505277723 GYF-GD -0.00209203246049583 W-6TS9 -0.000613000884186476 VIG-VR -0.00178526877425611 N-FJBK -0.00123911525588483 KX-P5C -0.00109760544728488 2-4ZT5 -0.00143632479012012 NVN-6F -0.00184914073906839 09-8TH -0.00201430544257164 TI0-AX -0.00173494941554964 7O-POM -0.000103849612060003 L6Q-SX -0.000158046575961635 BFJ-TB -0.000255321268923581 ZZ7-L6 -0.000125282022054307 L-CHVW -0.000103804297395982 X0LN-U -0.000496234802994877 RQAE-M -0.00033279595663771 7CO-SA -0.000364859879482538 4G-E5A -0.00078033865429461 A-VWK9 -0.000224296454689465 JQHP-4 -0.000164897690410726 6Q5K-5 -0.000252992118475959 P-MVFP -0.000172000480233692 J-Z1UW -0.000938658777158707 W477-P -0.000331896619172767 NQ1-BL -0.000770446145907044 HP-PMX -0.000459678471088409 K7A-G8 -0.000664660183247179 6BN-K9 -0.000409864267567173 WLE-PY -0.000818282947875559 EH-HXW -0.000340381608111784 V4-GZL -0.000244307215325534 OS-RR3 -0.000635340344160795 4C-Z91 -0.00162076950073242 1S-1V7 -0.000898321915883571 RU-97T -1 PE1-R1 -0.00221072253771126 Polaris -0.000633367104455829 JB-007 -0.00117050076369196 USJ2-M -0.000198119145352393 7M-RAL -0.000265716284047812 LPBU-U -0.000174742497620173 RF-342 -0.000156723559484817 J2V-XY -0.000297674356261268 S-QNXH -0.000128069630591199 Z-JBTR -9.02817046153359E-05 S94-X8 -0.000203586809220724 J-YQEC -0.000330874579958618 8MX-OR -0.000437273294664919 V-AMD5 -0.000506137148477137 97YC-C -0.000497761589940637 U-JC8X -0.000210001264349557 1HH3-E -7.08587249391712E-05 DUIU-Q -4.96268403367139E-05 LQH0-H -3.080647366005E-05 FRW3-2 -3.73501825379208E-05 9MX-1C -4.24615391239058E-05 IED-4U -5.45917682757135E-05 N-9EOQ -3.1399198633153E-05 6F3-TK -9.37667718972079E-05 2E0P-2 -5.31533369212411E-05 U-ITH5 -4.55663757747971E-05 RB-2EA -4.24573190684896E-05 YRZ-E4 -1.27467337733833E-05 N-4G5L -7.74434447521344E-05 A3-PAT -1.51419062603964E-05 ZK5-42 -0.000125111939269118 H55-2R -1.36963190016104E-05 P6-DBM -1.88258090929594E-05 9XI-0X -1.06743673313758E-05 Q8T-MC -7.73087685956853E-06 Z-YOJ9 -0.00151337054558098 4T4B-L -0.00195359764620662 F-JB3H -0.00376608758233488 XBO7-F -0.00424003461375833 FI-449 -0.00428438698872924 UA7-U4 -0.0059208027087152 VM-QFU -4.641481609724E-06 PU-1Z8 -4.95208678330528E-06 IEZW-V -3.21223001265025E-06 B-DXO9 -1.82219662292482E-06 1TS-WN -9.83596805781417E-07 16-31U -9.7093902695633E-07 H472-N -1.34434606025025E-06 U8MM-3 -8.47324645292247E-06 3C-26I -8.51444019644987E-06 9K-VDI -5.3489457059186E-06 L-SDU7 -1.65692708833376E-05 4-IPWK -8.58214571053395E-06 Q-KCK3 -1.65342244144995E-05 Atai 0.481113880872726 PZP1-D -0.0882636904716492 R1KE-A -0.0716436952352524 JGDF-B -0.165761291980743 1SR-HT -0.120075233280659 SQ-2XA -0.0779834389686584 Z-FYJR -0.20794340968132 ZA6-9N -0.154185444116592 J1-6CJ -0.148091822862625 7H-Z5R -0.130372330546379 0RZ5-2 -0.227535635232925 A9-NB6 -0.124111391603947 LG1-TA -0.294646024703979 TNK-BQ -0.0417542234063148 E2AX-5 -0.0336218997836113 HPE-KP -0.0339432246983051 THS-MN -0.0369160175323486 UBES-K -0.0616680011153221 I-R8B0 -0.0433722995221615 QIW-TQ -0.0785388126969337 WLL-QX -0.0946574136614799 BJC4-8 -0.0451188273727894 PQA-9K -0.0528970509767532 S5-U0R -0.0380696505308151 CW-R71 -0.0249410886317492 QO-3LC -0.121968403458595 3E-ER7 -0.0745662823319435 REZ-YZ -0.0721649974584579 OU-AIT -0.114693529903889 VYX2-I -0.121282830834389 5-P3CQ -0.0958633422851562 M-FDTD -0.189015716314316 54-VNO -0.0798883512616158 IAMZ-5 -0.0694686695933342 HD3-JK -0.0682587176561356 PBXG-A -0.0540425814688206 9-ERCP -0.102718286216259 KN7M-N -0.0403706803917885 Z-D1DW -0.349026262760162 FO-3PJ -0.435180068016052 6-QXE6 -0.472905158996582 N-FKXV -0.649492383003235 X7-8IG -0.363307893276215 R-G1SF -0.459046632051468 6-NCE7 -0.0341323539614677 WDJQ-G -0.0307294130325317 JS3-RS -0.0158829502761364 JX-T1W -0.0247140228748322 CZ-CED -0.032934807240963 BKK4-H -0.0499538034200668 Y-4V7U -0.0591418892145157 L-TPN0 -0.0233525484800339 3-XORH -0.015112204477191 G1VU-H -0.0147986803203821 6-23NU -0.00815837271511555 W6H6-K -0.0384043678641319 DVAR-P -0.0217637307941914 J-JS0D -0.00909742899239063 VR3-PS -0.113017030060291 LH-J8H -0.217056810855865 I9D-0D -0.251666367053986 HGB-C6 -0.212647467851639 2L5-FI -0.243961870670319 RS08-B -0.237915396690369 4U-14I -0.319995433092117 H-EDXD -0.321138888597488 8-ULAA -0.286628127098083 KF1-DU -0.419956088066101 W-WQM5 -0.372308343648911 G5J-LH -0.535095751285553 H7OL-I -0.284269601106644 TO21-U -0.279696613550186 RN-5K9 -0.296481102705002 0M-M64 -0.293175399303436 8RV-1L -0.374929904937744 W5-SGC -0.266135603189468 1C-TD6 -0.375090032815933 YBYX-1 -0.233587816357613 2-NF2Z -0.0340444557368755 9-BUSQ -0.0162876900285482 0Z-VHC -0.0237028934061527 LQB-TC -0.0250348467379808 II-1B3 -0.0235022939741611 6-HFD6 -0.023295171558857 P3UD-M -0.0395429246127605 LCN-0V -0.0326638594269753 FX-XMW -0.020539004355669 G-N6MC -0.0235927775502205 7-8XK0 -0.0312761217355728 90G-OA -0.033254973590374 DT-7EO -0.0347286909818649 B-Y06L -0.0666175708174706 HHQ-8L -0.0268727410584688 Z-KPAR -0.0604258887469769 8U-RZH -0.0204323064535856 2RV-06 -0.0782741978764534 CLDT-L -0.0501328930258751 QU7-EE -0.0156695172190666 UC-X28 -0.0331318415701389 R79-I7 -0.0359952822327614 E-RPGP -0.0327273793518543 ZV-KZO -0.023214491084218 NSE-U1 -0.0235178880393505 KER-EU -0.0435158349573612 69A-54 -0.0337185300886631 M9-OS2 -0.0248022880405188 5V-YL6 -0.0281576048582792 8-UWFS -0.0126986652612686 PQWA-L -0.0104690920561552 BWO-UU -0.00838604941964149 SQVI-U -0.0303930323570967 T-YWDD -0.0450086258351803 DLY-RG -0.0650675743818283 T-C5A0 -0.101223148405552 UP-L3Y -0.0557188428938389 F-KBNV -0.0457321405410767 JL-P9P -0.113170109689236 FR-RCH -0.016973627731204 FNS3-F -0.0213891621679068 7BA-TK -0.0105866957455873 IAWJ-X -0.0190016962587833 50-TJY -0.0283924639225006 3-CE1R -0.0211428608745337 0IRK-R -0.00628842134028673 XFBE-T -0.185925513505936 WW-KGD -0.179159358143806 DY-P7Q -0.227250784635544 Hasama 0.271440237760544 Sosala 0.420527428388596 S-1LIO -0.100362598896027 Ruerrotta 0.305396437644958 J-RQMF -0.166604533791542 Imih 0.573441803455353 New Eden 0.260553807020187 Hykanima 0.24685937166214 Okagaiken 0.140077099204063 Kehjari 0.247581392526627 Villasen 0.140693366527557 Sarenemi 0.216852322220802 Ashitsu 0.264888226985931 Ienakkamon 0.107988089323044 Korasen 0.128991052508354 Kinakka 0.415623009204865 Raihbaka 0.379800200462341 Innia 0.317138969898224 Iralaja 0.319766879081726 Martoh 0.382836878299713 Eha 0.397185087203979 Pavanakka 0.395648509263992 Uchomida 0.494726926088333 Samanuni 0.652784824371338 Astoh 0.612424075603485 Onnamon 0.555534482002258 Rohamaa 0.504716873168945 Uuhulanen 0.492079496383667 Tsuruma 0.542633414268494 Ahtila -1 Ichoriya -1 Okkamon 0.285363614559174 Vaaralen 0.313497424125671 Asakai 0.256374359130859 Prism 0.235087230801582 Mushikegi 0.433611959218979 Teskanen 0.287172049283981 Elunala 0.252598375082016 Ikoskio 0.283312231302261 Hikkoken 0.342755079269409 Enaluri 0.327798038721085 Aivonen 0.377330243587494 Hallanen 0.364361107349396 Akidagi 0.444938838481903 Immuri 0.42115980386734 Nennamaila 0.274257779121399 Hirri 0.335504025220871 Kedama 0.33846440911293 Notoras 0.188790634274483 Oinasiken 0.233713656663895 Rakapas 0.222780376672745 Teimo 0.273208230733871 Iwisoda 0.238360464572906 Nisuwa 0.309432536363602 Pynekastoh 0.239632815122604 Reitsato 0.189510479569435 Thera -0.990000009536743 J1226-0 -0.990000009536743 ``` Rough estimate, but why would these systems not have a security classification? ---
**Author:** ![Steve\_Ronuken](https://sea1.discourse-cdn.com/eveonline/user_avatar/forums.eveonline.com/steve_ronuken/32/373894_2.png) [@Steve\_Ronuken](https://forums.eveonline.com/u/Steve_Ronuken)\ **Post date:** [May 16, 2022, 3:16pm UTC](https://forums.eveonline.com/t/what-is-security-class-of-a-system/362759/9 "2022-05-16T15:16:04Z")
One of those ones where I never came across a use for it. May well be vestigal data. ---
**Author:** ![Emotional\_Support\_Clown](https://sea1.discourse-cdn.com/eveonline/user_avatar/forums.eveonline.com/emotional_support_clown/32/310422_2.png) [@Emotional\_Support\_Clown](https://forums.eveonline.com/u/Emotional_Support_Clown)\ **Post date:** [May 16, 2022, 5:02pm UTC](https://forums.eveonline.com/t/what-is-security-class-of-a-system/362759/10 "2022-05-16T17:02:24Z")
Here is the counts of systems grouped by security classifications. ```auto PS> $EveSystems|Group-Object -Property security_class|select @{Name='Count of systems';Expression={$_.count}} ,@{Name='security_class'; Expression={$_.name}} Count of systems security_class ---------------- -------------- 90 A 283 B 389 B1 226 B2 117 B3 144 C 50 C1 7 C2 61 D 234 D1 91 D2 56 D3 78 E 26 E1 176 F 98 F1 72 F2 65 F3 37 F4 24 F5 15 F6 27 F7 292 G 45 G1 32 G2 21 G3 33 G4 22 G5 16 G6 26 G7 221 H 68 H1 84 H2 50 H3 43 H4 39 H5 44 H6 30 H7 354 I 79 I1 42 I2 38 I3 35 I4 25 I5 9 I6 7 I7 316 J 46 J1 29 J2 9 J3 11 J4 7 J5 5 J6 7 J7 63 K 61 K1 65 K2 91 K3 117 K4 110 K5 97 K6 85 K7 3295 ``` CCP give an API with public data, CCP should provide documention on interpreting data. It is also not marked as _deprecated_ or _obsolete_. ---
**Author:** ![Golden\_Gnu](https://sea1.discourse-cdn.com/eveonline/user_avatar/forums.eveonline.com/golden_gnu/32/459734_2.png) [@Golden\_Gnu](https://forums.eveonline.com/u/Golden_Gnu)\ **Post date:** [May 17, 2022, 11:02am UTC](https://forums.eveonline.com/t/what-is-security-class-of-a-system/362759/11 "2022-05-17T11:02:43Z")
Try to do the stats per region, maybe a pattern will emerge, or not ---
**Author:** ![Emotional\_Support\_Clown](https://sea1.discourse-cdn.com/eveonline/user_avatar/forums.eveonline.com/emotional_support_clown/32/310422_2.png) [@Emotional\_Support\_Clown](https://forums.eveonline.com/u/Emotional_Support_Clown)\ **Post date:** [May 18, 2022, 5:43pm UTC](https://forums.eveonline.com/t/what-is-security-class-of-a-system/362759/12 "2022-05-18T17:43:20Z")
After a three way join of systems, constellations and regions collections… ```auto PS> $eveuniverse |select security_class, R_name|Group-Object -Property security_class|select -Property @{N = 'Count of Regions'; E = {$_.count}}, @{N = 'security_class'; E = {$_.name}} Count of Regions security_class ---------------- -------------- 3295 90 A 283 B 389 B1 226 B2 117 B3 144 C 50 C1 7 C2 61 D 234 D1 91 D2 56 D3 78 E 26 E1 176 F 98 F1 72 F2 65 F3 37 F4 24 F5 15 F6 27 F7 292 G 45 G1 32 G2 21 G3 33 G4 22 G5 16 G6 26 G7 221 H 68 H1 84 H2 50 H3 43 H4 39 H5 44 H6 30 H7 354 I 79 I1 42 I2 38 I3 35 I4 25 I5 9 I6 7 I7 316 J 46 J1 29 J2 9 J3 11 J4 7 J5 5 J6 7 J7 63 K 61 K1 65 K2 91 K3 117 K4 110 K5 97 K6 85 K7 ``` Looks the same. ---
**Author:** ![Emotional\_Support\_Clown](https://sea1.discourse-cdn.com/eveonline/user_avatar/forums.eveonline.com/emotional_support_clown/32/310422_2.png) [@Emotional\_Support\_Clown](https://forums.eveonline.com/u/Emotional_Support_Clown)\ **Post date:** [May 18, 2022, 5:46pm UTC](https://forums.eveonline.com/t/what-is-security-class-of-a-system/362759/13 "2022-05-18T17:46:56Z")
After joining the systems, constellations and regions… ```auto PS> $eveuniverse |select security_class, R_name -Unique|Group-Object -Property security_class|select -Property @{N = 'Count of Regions'; E = {$_.count}}, @{N = 'security_class'; E = {$_.name}} Count of Regions security_class ---------------- -------------- 60 15 A 20 B 11 B1 10 B2 11 B3 4 C 4 C1 2 C2 3 D 10 D1 7 D2 6 D3 3 E 4 E1 7 F 7 F1 7 F2 7 F3 7 F4 6 F5 7 F6 6 F7 6 G 6 G1 6 G2 5 G3 5 G4 5 G5 4 G6 5 G7 7 H 7 H1 7 H2 7 H3 7 H4 7 H5 7 H6 6 H7 7 I 7 I1 6 I2 5 I3 5 I4 5 I5 4 I6 3 I7 6 J 6 J1 6 J2 2 J3 2 J4 2 J5 3 J6 2 J7 8 K 8 K1 8 K2 8 K3 8 K4 8 K5 8 K6 8 K7 ``` Ignore last post, cannot delete or edit it, max edits reached. ---
**Author:** ![Emotional\_Support\_Clown](https://sea1.discourse-cdn.com/eveonline/user_avatar/forums.eveonline.com/emotional_support_clown/32/310422_2.png) [@Emotional\_Support\_Clown](https://forums.eveonline.com/u/Emotional_Support_Clown)\ **Post date:** [May 18, 2022, 5:55pm UTC](https://forums.eveonline.com/t/what-is-security-class-of-a-system/362759/14 "2022-05-18T17:55:41Z")
With the region names… ```auto PS> $eveuniverse |select security_class, @{N = 'Region Name'; E = {$_.R_name}} -Unique security_class Region Name -------------- ----------- B Derelik B1 Derelik B2 Derelik B3 Derelik B3 Pochven C The Forge B The Forge A The Forge C Pochven C1 The Forge C1 Pochven C2 The Forge H Vale of the Silent H1 Vale of the Silent H2 Vale of the Silent H3 Vale of the Silent Vale of the Silent H5 Vale of the Silent H4 Vale of the Silent H6 Vale of the Silent H7 Vale of the Silent UUA-F4 F1 Detorid F2 Detorid F4 Detorid F6 Detorid F Detorid F3 Detorid F5 Detorid F7 Detorid I Wicked Creek I1 Wicked Creek I2 Wicked Creek I3 Wicked Creek I4 Wicked Creek I5 Wicked Creek F Cache F7 Cache F3 Cache F1 Cache F2 Cache F4 Cache F6 Cache I Scalding Pass I3 Scalding Pass I1 Scalding Pass I2 Scalding Pass I4 Scalding Pass I6 Scalding Pass I5 Scalding Pass I7 Scalding Pass F Insmother F2 Insmother F1 Insmother F3 Insmother F5 Insmother F4 Insmother F6 Insmother F7 Insmother H1 Tribute H Tribute H2 Tribute H3 Tribute H4 Tribute H5 Tribute H6 Tribute I Great Wildlands I2 Great Wildlands I5 Great Wildlands I4 Great Wildlands I6 Great Wildlands I7 Great Wildlands I3 Great Wildlands I1 Great Wildlands I Curse I1 Curse K2 Malpais K1 Malpais K Malpais K4 Malpais K5 Malpais K6 Malpais K7 Malpais K3 Malpais I1 Catch I Catch I2 Catch I3 Catch I5 Catch I4 Catch I6 Catch I7 Catch H Venal H1 Venal H2 Venal H3 Venal H7 Venal H5 Venal H4 Venal H6 Venal C1 Lonetrek C Lonetrek B Lonetrek A Lonetrek B Pochven Lonetrek C2 Lonetrek J7HZ-F K4 The Spire K3 The Spire K6 The Spire K7 The Spire K5 The Spire K2 The Spire K1 The Spire K The Spire A821-A B1 Tash-Murkon B Tash-Murkon B2 Tash-Murkon A Tash-Murkon B3 Tash-Murkon K2 Outer Passage K1 Outer Passage K3 Outer Passage K Outer Passage K4 Outer Passage K5 Outer Passage K6 Outer Passage K7 Outer Passage G1 Stain G Stain G2 Stain Stain J Pure Blind J1 Pure Blind J2 Pure Blind Pure Blind D1 Metropolis E Metropolis E1 Metropolis E1 Pochven I4 Immensea I1 Immensea I Immensea I2 Immensea Immensea I3 Immensea I5 Immensea I6 Immensea B Domain A Domain B1 Domain B2 Domain K4 Etherium Reach K5 Etherium Reach K1 Etherium Reach K3 Etherium Reach K6 Etherium Reach K2 Etherium Reach K7 Etherium Reach K Etherium Reach D1 Molden Heath E Molden Heath E1 Molden Heath D Molden Heath H Geminate H1 Geminate H2 Geminate H3 Geminate H4 Geminate H5 Geminate H6 Geminate H7 Geminate A Heimatar D1 Heimatar D Heimatar E Heimatar E1 Heimatar F2 Impass F3 Impass F1 Impass F Impass F4 Impass F5 Impass F6 Impass B Sinq Laison D1 Sinq Laison D2 Sinq Laison D1 Pochven D2 Pochven A Sinq Laison D3 Sinq Laison C The Citadel C1 The Citadel B The Citadel The Citadel A The Citadel K2 The Kalevala Expanse K1 The Kalevala Expanse K3 The Kalevala Expanse K The Kalevala Expanse K5 The Kalevala Expanse K6 The Kalevala Expanse K4 The Kalevala Expanse K7 The Kalevala Expanse H Deklein H2 Deklein H4 Deklein H5 Deklein H6 Deklein H7 Deklein H3 Deklein H1 Deklein B2 Devoid B3 Devoid B1 Devoid B Devoid D1 Everyshore B Everyshore D2 Everyshore A Everyshore D3 Everyshore B2 The Bleak Lands B1 The Bleak Lands B The Bleak Lands The Bleak Lands B3 The Bleak Lands G Esoteria G1 Esoteria G3 Esoteria G2 Esoteria G4 Esoteria G6 Esoteria G5 Esoteria G7 Esoteria K Oasa K1 Oasa K2 Oasa K3 Oasa K4 Oasa K5 Oasa K6 Oasa K7 Oasa J Syndicate J1 Syndicate J2 Syndicate A Metropolis D Metropolis B3 Domain B1 Pochven D2 Solitude D3 Solitude D1 Solitude B Solitude H Tenal H1 Tenal Tenal H2 Tenal H5 Tenal H7 Tenal H4 Tenal H6 Tenal H3 Tenal J1 Fade J2 Fade J Fade J3 Fade J4 Fade I Providence I1 Providence I2 Providence D3 Placid D1 Placid D2 Placid B Placid Placid B Khanid B1 Khanid B2 Khanid B3 Khanid G2 Querious G1 Querious G Querious G4 Querious G3 Querious G5 Querious G6 Querious G7 Querious J Cloud Ring J1 Cloud Ring J6 Cloud Ring J2 Cloud Ring B1 Kador B Kador B2 Kador B3 Kador K3 Cobalt Edge K2 Cobalt Edge K Cobalt Edge K4 Cobalt Edge K1 Cobalt Edge K5 Cobalt Edge K7 Cobalt Edge K6 Cobalt Edge B2 Aridia B3 Aridia B1 Aridia B Aridia H Branch H1 Branch H2 Branch H3 Branch H5 Branch H7 Branch H4 Branch H6 Branch F3 Feythabolis F2 Feythabolis F4 Feythabolis F1 Feythabolis F Feythabolis F7 Feythabolis F5 Feythabolis F6 Feythabolis J Outer Ring J1 Outer Ring J2 Outer Ring J5 Outer Ring J6 Outer Ring J7 Outer Ring J Fountain J1 Fountain J2 Fountain J3 Fountain J5 Fountain J6 Fountain J4 Fountain J7 Fountain Fountain G Paragon Soul G1 Paragon Soul G7 Paragon Soul G3 Paragon Soul G2 Paragon Soul G4 Paragon Soul G5 Paragon Soul G Delve G1 Delve G3 Delve G2 Delve G5 Delve G6 Delve G7 Delve G4 Delve F Tenerifis F1 Tenerifis F2 Tenerifis F3 Tenerifis F4 Tenerifis F5 Tenerifis F6 Tenerifis F7 Tenerifis F Omist F1 Omist F2 Omist F3 Omist F4 Omist F5 Omist F6 Omist F7 Omist G Period Basis G1 Period Basis G2 Period Basis G3 Period Basis G6 Period Basis G7 Period Basis G4 Period Basis G5 Period Basis A Essence B Essence D1 Essence D2 Essence D3 Essence B2 Kor-Azor B1 Kor-Azor B Kor-Azor A Kor-Azor Kor-Azor B3 Kor-Azor K5 Perrigen Falls K3 Perrigen Falls K4 Perrigen Falls K2 Perrigen Falls K6 Perrigen Falls K7 Perrigen Falls K1 Perrigen Falls K Perrigen Falls B1 Genesis B2 Genesis B Genesis A Genesis B3 Genesis Genesis D2 Verge Vendor D3 Verge Vendor B Verge Vendor A Verge Vendor D1 Verge Vendor A Pochven A Kador Black Rise Pochven K-R00033 G-R00031 A-R00001 A-R00002 A-R00003 B-R00004 B-R00005 B-R00006 B-R00007 B-R00008 C-R00009 C-R00010 C-R00011 C-R00012 C-R00013 C-R00014 C-R00015 D-R00016 D-R00017 D-R00018 D-R00019 D-R00020 D-R00021 D-R00022 D-R00023 E-R00024 E-R00025 E-R00026 E-R00027 E-R00028 E-R00029 F-R00030 H-R00032 ADR01 ADR02 ADR03 ADR04 ADR05 VR-01 VR-02 VR-03 VR-04 VR-05 ``` ---
**Author:** ![Emotional\_Support\_Clown](https://sea1.discourse-cdn.com/eveonline/user_avatar/forums.eveonline.com/emotional_support_clown/32/310422_2.png) [@Emotional\_Support\_Clown](https://forums.eveonline.com/u/Emotional_Support_Clown)\ **Post date:** [May 18, 2022, 7:01pm UTC](https://forums.eveonline.com/t/what-is-security-class-of-a-system/362759/15 "2022-05-18T19:01:06Z")
Regions that have some systems with no _security\_class_… ```auto PS> $eveuniverse| where {!$_.security_class} |select security_class, @{N = 'Region Name'; E = {$_.R_name}} -Unique security_class Region Name -------------- ----------- Vale of the Silent UUA-F4 Lonetrek J7HZ-F A821-A Stain Pure Blind Immensea The Citadel The Bleak Lands Tenal Placid Fountain Kor-Azor Genesis Black Rise Pochven K-R00033 G-R00031 A-R00001 A-R00002 A-R00003 B-R00004 B-R00005 B-R00006 B-R00007 B-R00008 C-R00009 C-R00010 C-R00011 C-R00012 C-R00013 C-R00014 C-R00015 D-R00016 D-R00017 D-R00018 D-R00019 D-R00020 D-R00021 D-R00022 D-R00023 E-R00024 E-R00025 E-R00026 E-R00027 E-R00028 E-R00029 F-R00030 H-R00032 ADR01 ADR02 ADR03 ADR04 ADR05 VR-01 VR-02 VR-03 VR-04 VR-05 ``` ---
**Author:** ![system](https://global.discourse-cdn.com/eveonline/original/3X/4/1/41ec4921cbaca7a6f9ea556e7cc20018461eae5e.png) [@system](https://forums.eveonline.com/u/system)\ **Post date:** [August 16, 2022, 7:01pm UTC](https://forums.eveonline.com/t/what-is-security-class-of-a-system/362759/16 "2022-08-16T19:01:55Z")
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