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GLONASS Performances
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| GLONASS | |
|---|---|
| Title | GLONASS Performances |
| Author(s) | GMV |
| Level | Basic |
| Year of Publication | 2011 |
GLONASS Availability
At the moment of this publication (April 2011) there are 27 GLONASS satellites in orbit although only 23 of them are operational. Availability performance (calculated as the percentage of time during which the condition PDOP ≤ 6 is valid at mask angles ≥ 5 deg) obtained with the current constellation is shown in the right figure.
| Date | Operational Satellites in constellation | Integral Availability Global | Integral Availability on Russian territory |
|---|---|---|---|
| 2011/07/06 | 23 | 99.5 % | 100 % |
| 2011/01/01 | 22 | 99 % | 100 % |
| 2010/01/01 | 15 | 73.6 % | 85.3 % |
| 2009/01/01 | 16 | 87.4 % | 96.6 % |
| 2008/01/01 | 12 | 48 % | 57.6 % |
| 2007/01/01 | 9 | 19.2 % | 26.3 % |