397:(104 mi) and an apogee of 198 kilometres (123 mi), with an inclination of 64.8° and an orbital period of 88.7 minutes. The spacecraft successfully reached Earth orbit but failed to leave for Venus when the Blok L upper stage malfunctioned. The upper stage lost stable attitude due to a failure in the circuit of the power supply circuit that powered the valves for the attitude control system; hence, the stage remained uncontrollable and not ready to initiate a burn to leave Earth orbit. The problem was traced to a design error, the examination of
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data found that the failure was due to a design flaw in the circuitry of the BOZ unit, which resulted in power not being transferred to the attitude control jets on the Blok L stage, rather than one related to quality control. The spacecraft burned up in Earth's atmosphere the following day, on 28
396:
The probe was the first dedicated 3MV spacecraft that the
Soviets launched (earlier missions had been of the test "Object-Probe" versions as Kosmos 21). It was designed to accomplish atmospheric entry into Venus followed by descent and impact. On 27 March 1964, it had a perigee of 167 kilometres
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Kosmos 27 was a "third-generation" deep space planetary probes of the 3MV series of the Soviet Union. The Soviet engineers planned four types of the 3MV, the 3MV-1 (for Venus impact), 3MV-2 (for Venus flyby), 3MV-3 (for Mars impact), and 3MV-4 (for Mars flyby). The primary difference over the
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second-generation was vastly improved (and in many cases doubled) orientation system elements as well as improved onboard propulsion systems. While these four versions were meant to study Mars and Venus.
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473:. The NASA history series (second ed.). Washington, D.C.: NASA History Program Office. p. 58.
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8K78 carrier rocket from
Baikonur. The Blok L stage and probe reached Earth orbit successfully, but the
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Payloads are separated by bullets ( · ), launches by pipes ( | ). Crewed flights are indicated in
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March 1964. If successful, this mission would have been given a "Venera" designation.
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https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1964-014A
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1508:. Payloads deployed from other spacecraft are denoted in (brackets).
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Kosmos 27 was launched at 03:24:43 GMT on 27 March 1964, atop a
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Beyond Earth: A Chronicle of Deep Space
Exploration, 1958–2016
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351:impact probe. The spacecraft was launched by a
371:8K78 s/n T15000-27 carrier rocket flying from
1504:. Uncatalogued launch failures are listed in
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498:from the original on 24 April 2019.
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347:was a space mission intended as a
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16:Failed Soviet Venus impact probe
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1:
1536:Spacecraft launched in 1964
155:27 March 1964, 03:24:43 GMT
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359:system failed to operate.
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527:Encyclopedia Astronautica
464:Siddiqi, Asif A. (2018).
428:List of missions to Venus
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230:Reference system
94:Spacecraft properties
840:Orbital launches in
132:(including an impact
1460:Surveyor Mass Model
533:on 27 February 2002
377:Baikonur Cosmodrome
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511:- 27 February 2020
449:- 27 February 2020
420:Spaceflight portal
225:Orbital parameters
1526:Kosmos satellites
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745:Venera 3MV-1 No.2
735:Venera 2MV-2 No.1
730:Venera 2MV-1 No.2
725:Venera 2MV-1 No.1
343:), also known as
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313:Venera 3MV-1 No.2
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529:. Archived from
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357:attitude control
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251:Perigee altitude
147:Start of mission
134:probe of 285 kg)
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1017:Transit 5BN-3
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1010:Luna E-6 No.5
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966:Luna E-6 No.6
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480:9781626830424
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295:27 March 1964
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212:28 March 1964
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167:s/n T15000-27
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1470:Transit 5E-5
1437:
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1351:
1334:
1322:
1318:Dragsphere 2
1313:Dragsphere 1
1255:
1118:
1111:
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1024:Transit 5E-4
1022:
1015:
1008:
978:
971:
964:
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775:Venera 1964A
749:
593:
535:. Retrieved
531:the original
526:
521:Wade, Mark.
516:
504:
466:
442:
395:
386:
366:
344:
340:
328:
327:
285:88.7 minutes
164:Molniya 8K78
109:Manufacturer
37:impact probe
31:Mission type
18:
1485:Explorer 26
1475:San Marco 1
1423:Explorer 25
1418:Explorer 24
1408:Explorer 23
1330:Explorer 22
1293:Explorer 21
537:17 February
271:Inclination
172:Launch site
152:Launch date
119:Launch mass
1520:Categories
1455:Titan 3A-1
1257:Titan 3A-2
1151:Elektron 4
1146:Elektron 3
911:Elektron 2
906:Elektron 1
770:Kosmos 482
765:Kosmos 359
760:Kosmos 167
489:2017059404
434:References
383:Spacecraft
234:Geocentric
209:Decay date
186:Contractor
1502:underline
1450:Kosmos 51
1439:DS-2 No.2
1428:Mariner 4
1403:Mariner 3
1388:Kosmos 50
1383:Kosmos 49
1342:Kosmos 48
1336:Voskhod 1
1303:Kosmos 47
1288:Kosmos 46
1268:Kosmos 45
1251:Kosmos 44
1246:Kosmos 43
1241:Kosmos 42
1236:Kosmos 41
1221:Kosmos 40
1216:Kosmos 39
1211:Kosmos 38
1196:Kosmos 37
1186:Kosmos 36
1161:Kosmos 35
1126:Kosmos 34
1107:Kosmos 33
1097:OPS 4467B
1092:OPS 4467A
1082:Kosmos 32
1077:Kosmos 31
1045:Kosmos 30
1035:Kosmos 29
994:Kosmos 28
979:Kosmos 27
953:Kosmos 26
933:Kosmos 25
886:OPS 3367B
881:OPS 3367A
871:SOLRAD 7A
755:Kosmos 96
750:Kosmos 27
740:Kosmos 21
704:Venera 14
699:Venera 13
694:Venera 12
689:Venera 11
684:Venera 10
622:Venera 16
617:Venera 15
399:telemetry
341:Cosmos 27
337:Космос 27
329:Kosmos 27
244:Low Earth
59:1964-014A
53:COSPAR ID
22:Kosmos 27
1490:OPS 3762
1480:OPS 3358
1465:OPS 6582
1445:OPS 4439
1413:OPS 3360
1398:OPS 3062
1393:OPS 5434
1378:OPS 5063
1373:OPS 4384
1347:OPS 3559
1324:OPS 4036
1308:OPS 5798
1298:OPS 3333
1283:OPS 4262
1273:OPS 3497
1231:OPS 2739
1226:Syncom 3
1206:OPS 3216
1201:OPS 3802
1191:OPS 3042
1181:Ranger 7
1156:OPS 3491
1141:OPS 4923
1136:OPS 3684
1131:OPS 3395
1102:OPS 3754
1087:OPS 3236
1065:OPS 3483
1060:OPS 4412
1050:OPS 3592
1040:OPS 2921
1030:OPS 3743
1004:Polyot 2
999:Gemini 1
973:OPS 3467
948:OPS 3435
943:OPS 3722
938:OPS 2423
921:OPS 3444
916:Ranger 6
791:Venera-D
679:Venera 9
674:Venera 8
658:Venera 7
653:Venera 6
648:Venera 5
643:Venera 4
638:Venera 3
610:Orbiters
601:Venera 2
595:Venera 1
493:Archived
406:See also
373:Site 1/5
339:meaning
318:Venera 2
180:Site 1/5
176:Baikonur
127:Dry mass
42:Operator
1506:italics
1171:Vela 2B
1166:Vela 2A
984:Ariel 2
891:Relay 2
876:SECOR 1
861:Poppy 3
667:Landers
392:Mission
375:at the
369:Molniya
353:Molniya
333:Russian
122:6520 kg
74:SATCAT
1433:Zond 2
1176:ERS-13
989:Zond 1
896:Echo 2
866:GGSE-1
849:1965 →
834:← 1963
587:Flybys
487:
477:
363:Launch
306:Venera
281:Period
265:198 km
255:167 km
240:Regime
160:Rocket
130:948 kg
1263:OGO-1
496:(PDF)
471:(PDF)
349:Venus
291:Epoch
275:64.8°
190:OKB-1
113:OKB-1
103:3MV-1
81:00770
46:OKB-1
35:Venus
1113:ESRS
959:BE-A
842:1964
539:2017
485:LCCN
475:ISBN
1546:3MV
76:no.
1522::
525:.
483:.
454:^
379:.
335::
178:,
825:e
818:t
811:v
572:e
565:t
558:v
541:.
331:(
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