GLONASS constellation status, 27.01.2021
Total satellites in constellation 28 SC
Operational 23 SC
In commissioning phase -
In maintenance 2 SC
Under check by the Satellite Prime Contractor -
Spares 1 SC
In flight tests phase 2 SC
GLONASS Constellation Status at 27.01.2021 based on both the almanac analysis and navigation messages received at 12:00 27.01.21 (UTC) in IAC PNT TsNIImash
Orb. slot Orb. pl. RF chnl # GC Launched Operation begins Operation ends Life-time (months) Satellite health status Comments
In almanac In ephemeris (UTC)
1 1 01 730 14.12.09 30.01.10   133.5 + + 12:56 27.01.21 In operation
2 1 -4 747 26.04.13 04.07.13   93.1 + + 12:56 27.01.21 In operation
3 1 05 744 04.11.11 08.12.11   110.9 + + 12:56 27.01.21 In operation
4 1 06 759 11.12.19 03.01.20   13.6 + + 12:56 27.01.21 In operation
5 1 01 756 17.06.18 29.08.18   31.4 + + 12:56 27.01.21 In operation
6 1 -4 733 14.12.09 24.01.10   133.5 + + 12:56 27.01.21 In operation
7 1 05 745 04.11.11 18.12.11   110.9 + + 12:56 27.01.21 In operation
8 1 06 743 04.11.11 20.09.12   110.9 + + 12:56 27.01.21 In operation
9 2 -2 702 01.12.14 15.02.16   73.9 + + 12:56 27.01.21 In operation
10 2 -7 723 25.12.07 22.01.08   157.2 + + 12:56 27.01.21 In operation
11 2 00 705 25.10.20     3.1 - - 12:56 27.01.21 Flight Tests
12 2 -1 758 27.05.19 22.06.19   20.1 + + 12:56 27.01.21 In operation
13 2 -2 721 25.12.07 08.02.08   157.2 + + 12:56 27.01.21 In operation
14 2 -7 752 22.09.17 16.10.17   40.2 + + 12:56 27.01.21 In operation
15 2 00 757 03.11.18 27.11.18   26.8 + + 12:56 27.01.21 In operation
16 2 -1 736 02.09.10 04.10.10   124.9 + + 12:56 27.01.21 In operation
17 3 04 751 07.02.16 28.02.16   59.7 + + 12:56 27.01.21 In operation
18 3 -3 754 24.03.14 14.04.14   82.2 + + 12:56 27.01.21 In operation
19 3 03 720 26.10.07 25.11.07   159.2 + + 12:56 27.01.21 In operation
20 3 02 719 26.10.07 27.11.07   159.2 + + 12:56 27.01.21 In operation
21 3 04 755 14.06.14 03.08.14   79.5 + + 12:56 27.01.21 In operation
22 3 -3 735 02.03.10 28.03.10   131.0 + + 12:56 27.01.21 In operation
23 3 03 732 02.03.10 28.03.10   131.0 + + 12:56 27.01.21 In operation
24 3 02 760 16.03.20 14.04.20   10.4 + + 12:56 27.01.21 In operation
15 2   716 25.12.06 12.10.07 24.11.18 169.2     Spares
22 3   731 02.03.10 28.03.10 02.06.20 131.0     Maintenance
11 2   753 29.05.16 27.06.16 19.11.20 56.0     Maintenance
20 3 -6 701 26.02.11     119.1     Flight Tests