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Zenit-4MK Satellite Bus

Data current as of 2026-07-20.

The Zenit-4MK bus accounts for 116 cataloged objects, of which 0 are in orbit and 0 are active. 116 have reentered. Most are built by TSSKB. The largest operator on this bus is GUKOSR. The first launched in 1969, the most recent in 1980.

Track Zenit-4MK satellites live in KeepTrack
0
In orbit
0
Active
116
Total launched
116
Reentered

Zenit-4MK launched per year

5 10 15 20 1969: 1 launched, 1 since reentered 1970: 3 launched, 3 since reentered 1971: 2 launched, 2 since reentered 1972: 3 launched, 3 since reentered 1973: 10 launched, 10 since reentered 1974: 14 launched, 14 since reentered 1975: 19 launched, 19 since reentered 1976: 18 launched, 18 since reentered 1977: 15 launched, 15 since reentered 1978: 17 launched, 17 since reentered 1979: 10 launched, 10 since reentered 1980: 4 launched, 4 since reentered 1969 1971 1973 1975 1977 1979
Still in orbit Since reentered Click a year to list its satellites.

Typical specifications

Most common values across cataloged Zenit-4MK satellites.

Manufacturer TSSKB
Launch mass 2310 kg
Dry mass 2310 kg
Length 6 m
Diameter 2.2 m
Span 6 m
Shape Sphere + DCone

Top operators

GUKOSR 110 TSKBE3 6

Top countries

SU 116

Zenit-4MK satellites

Showing the latest 100 of 116. Track any of them live in KeepTrack.

Name NORAD COSPAR Owner Launched Orbit Status Track
COSMOS 1214 Kosmos-1214 12008 1980-082A GUKOSR Oct 10, 1980 89 min, 67.1° Reentered ◉
COSMOS 1173 Kosmos-1173 11763 1980-029A GUKOSR Apr 17, 1980 89 min, 70.3° Reentered ◉
COSMOS 1170 Kosmos-1170 11747 1980-025A GUKOSR Apr 1, 1980 90 min, 70.4° Reentered ◉
COSMOS 1165 Kosmos-1165 11713 1980-017A GUKOSR Feb 21, 1980 89 min, 72.9° Reentered ◉
COSMOS 1148 Kosmos-1148 11649 1979-106A GUKOSR Dec 28, 1979 89 min, 67.1° Reentered ◉
COSMOS 1128 Kosmos-1128 11529 1979-081A GUKOSR Sep 14, 1979 90 min, 62.8° Reentered ◉
COSMOS 1120 Kosmos-1120 11485 1979-073A GUKOSR Aug 11, 1979 90 min, 70.4° Reentered ◉
COSMOS 1117 Kosmos-1117 11463 1979-068A GUKOSR Jul 25, 1979 89 min, 62.8° Reentered ◉
COSMOS 1113 Kosmos-1113 11447 1979-064A GUKOSR Jul 10, 1979 90 min, 65.0° Reentered ◉
COSMOS 1098 Kosmos-1098 11358 1979-040A GUKOSR May 15, 1979 89 min, 72.9° Reentered ◉
COSMOS 1080 Kosmos-1080 11294 1979-023A GUKOSR Mar 14, 1979 88 min, 72.9° Reentered ◉
COSMOS 1078 Kosmos-1078 11276 1979-016A GUKOSR Feb 22, 1979 88 min, 72.9° Reentered ◉
COSMOS 1073 Kosmos-1073 11255 1979-006A GUKOSR Jan 30, 1979 90 min, 62.8° Reentered ◉
COSMOS 1071 Kosmos-1071 11233 1979-002A GUKOSR Jan 13, 1979 90 min, 62.8° Reentered ◉
COSMOS 1068 Kosmos-1068 11169 1978-123A GUKOSR Dec 26, 1978 90 min, 62.8° Reentered ◉
COSMOS 1059 Kosmos-1059 11137 1978-110A GUKOSR Dec 7, 1978 90 min, 62.8° Reentered ◉
COSMOS 1049 Kosmos-1049 11118 1978-107A GUKOSR Nov 21, 1978 89 min, 72.9° Reentered ◉
COSMOS 1047 Kosmos-1047 11108 1978-104A GUKOSR Nov 15, 1978 90 min, 72.9° Reentered ◉
COSMOS 1042 Kosmos-1042 11052 1978-092A GUKOSR Oct 6, 1978 89 min, 62.8° Reentered ◉
COSMOS 1031 Kosmos-1031 11022 1978-085A GUKOSR Sep 9, 1978 90 min, 62.8° Reentered ◉
COSMOS 1029 Kosmos-1029 11012 1978-082A GUKOSR Aug 29, 1978 90 min, 62.8° Reentered ◉
COSMOS 1022 Kosmos-1022 10944 1978-059A GUKOSR Jun 12, 1978 90 min, 72.9° Reentered ◉
COSMOS 1021 Kosmos-1021 10939 1978-057A GUKOSR Jun 10, 1978 89 min, 65.0° Reentered ◉
COSMOS 1007 Kosmos-1007 10895 1978-048A GUKOSR May 16, 1978 89 min, 72.8° Reentered ◉
COSMOS 1003 Kosmos-1003 10811 1978-040A GUKOSR Apr 20, 1978 89 min, 62.8° Reentered ◉
COSMOS 999 Kosmos-999 10773 1978-033A GUKOSR Mar 30, 1978 90 min, 71.4° Reentered ◉
COSMOS 993 Kosmos-993 10725 1978-027A GUKOSR Mar 10, 1978 89 min, 72.8° Reentered ◉
COSMOS 989 Kosmos-989 10672 1978-017A GUKOSR Feb 14, 1978 89 min, 65.0° Reentered ◉
COSMOS 987 Kosmos-987 10639 1978-013A GUKOSR Jan 31, 1978 89 min, 62.8° Reentered ◉
COSMOS 986 Kosmos-986 10607 1978-010A GUKOSR Jan 24, 1978 89 min, 65.0° Reentered ◉
COSMOS 974 Kosmos-974 10554 1978-001A GUKOSR Jan 6, 1978 89 min, 62.8° Reentered ◉
COSMOS 969 Kosmos-969 10527 1977-120A GUKOSR Dec 20, 1977 90 min, 62.8° Reentered ◉
COSMOS 964 Kosmos-964 10498 1977-110A GUKOSR Dec 4, 1977 90 min, 72.9° Reentered ◉
COSMOS 957 Kosmos-957 10385 1977-098A GUKOSR Sep 30, 1977 89 min, 65.0° Reentered ◉
COSMOS 953 Kosmos-953 10359 1977-089A GUKOSR Sep 16, 1977 89 min, 62.8° Reentered ◉
COSMOS 938 Kosmos-938 10281 1977-078A GUKOSR Aug 24, 1977 89 min, 62.8° Reentered ◉
COSMOS 932 Kosmos-932 10153 1977-069A GUKOSR Jul 20, 1977 89 min, 65.0° Reentered ◉
COSMOS 927 Kosmos-927 10139 1977-063A GUKOSR Jul 12, 1977 90 min, 72.9° Reentered ◉
COSMOS 920 Kosmos-920 10086 1977-052A GUKOSR Jun 22, 1977 89 min, 65.0° Reentered ◉
COSMOS 915 Kosmos-915 10038 1977-045A GUKOSR Jun 8, 1977 89 min, 62.8° Reentered ◉
COSMOS 908 Kosmos-908 10007 1977-035A GUKOSR May 17, 1977 89 min, 51.8° Reentered ◉
COSMOS 907 Kosmos-907 09944 1977-033A GUKOSR May 5, 1977 89 min, 62.8° Reentered ◉
COSMOS 902 Kosmos-902 09908 1977-026A GUKOSR Apr 7, 1977 89 min, 81.4° Reentered ◉
COSMOS 897 Kosmos-897 09860 1977-017A GUKOSR Mar 10, 1977 90 min, 72.8° Reentered ◉
COSMOS 892 Kosmos-892 09812 1977-009A GUKOSR Feb 9, 1977 90 min, 72.9° Reentered ◉
COSMOS 888 Kosmos-888 09658 1977-001A GUKOSR Jan 6, 1977 89 min, 65.0° Reentered ◉
COSMOS 884 Kosmos-884 09614 1976-123A GUKOSR Dec 17, 1976 89 min, 65.0° Reentered ◉
COSMOS 866 Kosmos-866 09532 1976-110A GUKOSR Nov 11, 1976 88 min, 65.0° Reentered ◉
COSMOS 863 Kosmos-863 09499 1976-106A GUKOSR Oct 25, 1976 90 min, 62.8° Reentered ◉
COSMOS 859 Kosmos-859 09471 1976-099A GUKOSR Oct 10, 1976 89 min, 65.0° Reentered ◉
COSMOS 857 Kosmos-857 09439 1976-097A GUKOSR Sep 24, 1976 90 min, 62.8° Reentered ◉
COSMOS 854 Kosmos-854 09405 1976-090A GUKOSR Sep 3, 1976 89 min, 81.3° Reentered ◉
COSMOS 852 Kosmos-852 09391 1976-086A GUKOSR Aug 28, 1976 89 min, 65.0° Reentered ◉
COSMOS 847 Kosmos-847 09214 1976-079A GUKOSR Aug 4, 1976 89 min, 62.8° Reentered ◉
COSMOS 835 Kosmos-835 08922 1976-060A GUKOSR Jun 29, 1976 89 min, 65.0° Reentered ◉
COSMOS 833 Kosmos-833 08898 1976-055A GUKOSR Jun 16, 1976 89 min, 62.8° Reentered ◉
COSMOS 824 Kosmos-824 08877 1976-052A GUKOSR Jun 8, 1976 89 min, 71.4° Reentered ◉
COSMOS 821 Kosmos-821 08862 1976-048A GUKOSR May 26, 1976 90 min, 72.8° Reentered ◉
COSMOS 817 Kosmos-817 08823 1976-040A GUKOSR May 5, 1976 89 min, 65.0° Reentered ◉
COSMOS 815 Kosmos-815 08811 1976-036A GUKOSR Apr 28, 1976 89 min, 81.3° Reentered ◉
COSMOS 810 Kosmos-810 08772 1976-028A GUKOSR Mar 26, 1976 89 min, 62.8° Reentered ◉
COSMOS 806 Kosmos-806 08737 1976-020A GUKOSR Mar 10, 1976 90 min, 71.4° Reentered ◉
COSMOS 802 Kosmos-802 08681 1976-013A GUKOSR Feb 11, 1976 89 min, 65.0° Reentered ◉
COSMOS 788 Kosmos-788 08551 1976-002A GUKOSR Jan 7, 1976 90 min, 62.8° Reentered ◉
COSMOS 786 Kosmos-786 08489 1975-120A GUKOSR Dec 16, 1975 89 min, 65.0° Reentered ◉
COSMOS 779 Kosmos-779 08420 1975-104A GUKOSR Nov 4, 1975 89 min, 62.8° Reentered ◉
COSMOS 774 Kosmos-774 08345 1975-095A GUKOSR Oct 1, 1975 89 min, 71.4° Reentered ◉
COSMOS 760 Kosmos-760 08281 1975-085A GUKOSR Sep 16, 1975 90 min, 65.0° Reentered ◉
COSMOS 757 Kosmos-757 08147 1975-078A GUKOSR Aug 27, 1975 89 min, 62.8° Reentered ◉
COSMOS 754 Kosmos-754 08069 1975-073A GUKOSR Aug 13, 1975 90 min, 71.4° Reentered ◉
COSMOS 753 Kosmos-753 08059 1975-071A GUKOSR Jul 31, 1975 89 min, 62.8° Reentered ◉
COSMOS 748 Kosmos-748 08006 1975-061A GUKOSR Jul 3, 1975 89 min, 62.8° Reentered ◉
COSMOS 746 Kosmos-746 07985 1975-059A GUKOSR Jun 25, 1975 89 min, 62.8° Reentered ◉
COSMOS 743 Kosmos-743 07925 1975-053A GUKOSR Jun 12, 1975 89 min, 62.8° Reentered ◉
COSMOS 742 Kosmos-742 07900 1975-048A GUKOSR Jun 3, 1975 89 min, 62.8° Reentered ◉
COSMOS 740 Kosmos-740 07821 1975-046A GUKOSR May 28, 1975 89 min, 65.0° Reentered ◉
COSMOS 730 Kosmos-730 07770 1975-035A GUKOSR Apr 24, 1975 89 min, 81.3° Reentered ◉
COSMOS 727 Kosmos-727 07742 1975-030A GUKOSR Apr 16, 1975 89 min, 65.0° Reentered ◉
COSMOS 722 Kosmos-722 07709 1975-021A GUKOSR Mar 27, 1975 89 min, 71.4° Reentered ◉
COSMOS 719 Kosmos-719 07691 1975-018A GUKOSR Mar 12, 1975 89 min, 65.0° Reentered ◉
COSMOS 710 Kosmos-710 07675 1975-015A GUKOSR Feb 26, 1975 89 min, 65.0° Reentered ◉
COSMOS 709 Kosmos-709 07664 1975-013A GUKOSR Feb 12, 1975 89 min, 62.8° Reentered ◉
COSMOS 704 Kosmos-704 07617 1975-005A GUKOSR Jan 23, 1975 90 min, 72.8° Reentered ◉
COSMOS 701 Kosmos-701 07596 1974-106A GUKOSR Dec 27, 1974 90 min, 71.4° Reentered ◉
COSMOS 694 Kosmos-694 07533 1974-090A GUKOSR Nov 16, 1974 89 min, 72.8° Reentered ◉
COSMOS 691 Kosmos-691 07483 1974-082A GUKOSR Oct 25, 1974 89 min, 65.0° Reentered ◉
COSMOS 688 Kosmos-688 07473 1974-078A GUKOSR Oct 18, 1974 89 min, 62.8° Reentered ◉
COSMOS 674 Kosmos-674 07423 1974-068A GUKOSR Aug 29, 1974 89 min, 65.0° Reentered ◉
COSMOS 671 Kosmos-671 07409 1974-062A GUKOSR Aug 7, 1974 89 min, 62.8° Reentered ◉
COSMOS 666 Kosmos-666 07367 1974-053A GUKOSR Jul 12, 1974 89 min, 62.8° Reentered ◉
COSMOS 659 Kosmos-659 07334 1974-043A GUKOSR Jun 13, 1974 89 min, 62.8° Reentered ◉
COSMOS 657 Kosmos-657 07317 1974-038A GUKOSR May 30, 1974 89 min, 62.8° Reentered ◉
COSMOS 652 Kosmos-652 07292 1974-030A GUKOSR May 15, 1974 89 min, 51.8° Reentered ◉
COSMOS 649 Kosmos-649 07280 1974-027A GUKOSR Apr 29, 1974 89 min, 62.8° Reentered ◉
COSMOS 639 Kosmos-639 07240 1974-019A GUKOSR Apr 4, 1974 89 min, 81.3° Reentered ◉
COSMOS 636 Kosmos-636 07225 1974-016A GUKOSR Mar 20, 1974 89 min, 65.0° Reentered ◉
COSMOS 630 Kosmos-630 07104 1974-004A GUKOSR Jan 30, 1974 89 min, 72.8° Reentered ◉
COSMOS 625 Kosmos-625 06995 1973-105A GUKOSR Dec 21, 1973 89 min, 72.8° Reentered ◉
COSMOS 612 Kosmos-612 06953 1973-095A GUKOSR Nov 28, 1973 89 min, 72.9° Reentered ◉
COSMOS 607 Kosmos-607 06926 1973-087A GUKOSR Nov 10, 1973 90 min, 72.8° Reentered ◉

Showing 100 of 116 objects.

Frequently asked questions

How many Zenit-4MK satellites are there?

The catalog lists 116 objects built on the Zenit-4MK bus. 0 are in orbit and 116 have reentered.

How many Zenit-4MK satellites are in orbit?

0 Zenit-4MK objects are currently in orbit, of which 0 carry an active status.

Who builds the Zenit-4MK bus?

The Zenit-4MK bus is most commonly built by TSSKB.

When did the first Zenit-4MK satellite launch?

The first cataloged Zenit-4MK satellite launched in 1969, and the most recent in 1980.

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Satellite data compiled by KeepTrack from CelesTrak, Space-Track, and GCAT, provided under CC BY-NC 4.0.