From: SMTP%"lang@unb.ca" 11-NOV-1999 10:24:06.34 To: SARDI CC: Subj: GLONASS Constellation Status (99-11-10) X-Authentication-Warning: sol.sun.csd.unb.ca: lang owned process doing -bs Date: Thu, 11 Nov 1999 11:18:15 -0400 (AST) From: Richard Langley X-Sender: lang@sol.sun.csd.unb.ca To: "Richard B. Langley" Subject: GLONASS Constellation Status (99-11-10) Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII GLONASS Constellation Status (99-11-10) GLONASS Kosmos Internat. NORAD Plane Channel Almanac Launch Status Numbers Numbers ID Catalog Number Date (Date Number (Slot) (UTC) withdrawn) ------------------------------------------------------------------------------- 49 249 2111 1990-110C 21008 8-Dec-90 15-Aug-96 50 750 2139 1991-025A 21216 4-Apr-91 14-Nov-94 51 753 2140 1991-025B 21217 4-Apr-91 4-Jun-93 52 754 2141 1991-025C 21218 4-Apr-91 16-Jun-92 53 768 2177 1992-005A 21853 29-Jan-92 29-Jun-93 54 769 2178 1992-005B 21854 29-Jan-92 25-Jun-97 55 771 2179 1992-005C 21855 29-Jan-92 21-Dec-96 56 774 2206 (2204) 1992-047A 22056 30-Jul-92 26-Aug-96 57 756 2204 (2205) 1992-047B 22057 30-Jul-92 4-Aug-97 58 772 2205 (2206) 1992-047C 22058 30-Jul-92 27-Aug-94 59 773 2234 1993-010A 22512 17-Feb-93 17-Aug-94 60 757 2236 (2235) 1993-010B 22513 17-Feb-93 23-Aug-97 61 759 2235 (2236) 1993-010C 22514 17-Feb-93 4-Aug-97 62 760 2276 (2275) 1994-021A 23043 11-Apr-94 9-Sep-99 63 761 2277 (2276) 1994-021B 23044 11-Apr-94 29-Aug-97 64 758 2275 (2277) 1994-021C 23045 3 10 18 11-Apr-94 UNH 65 767 2287 1994-050A 23203 11-Aug-94 3-Feb-99 66 775 2289 (2288) 1994-050B 23204 2 22 16 11-Aug-94 OK 67 770 2288 (2289) 1994-050C 23205 2 9 14 11-Aug-94 UNH 68 763 2295 (2294) 1994-076A 23396 20-Nov-94 5-Oct-99 69 764 2296 (2295) 1994-076B 23397 1 13 6 20-Nov-94 UNH 70 762 2294 (2296) 1994-076C 23398 1 12 4 20-Nov-94 UNH 71 765 2307 1995-009A 23511 3 1 20 7-Mar-95 UNH 72 766 2308 1995-009B 23512 3 10 22 7-Mar-95 OK 73 777 2309 1995-009C 23513 7-Mar-95 26-Dec-97 74 780 2316 1995-037A 23620 24-Jul-95 6-Apr-99 75 781 2317 1995-037B 23621 2 9 10 24-Jul-95 OK 76 785 2318 1995-037C 23622 2 4 11 24-Jul-95 OK 77 776 2323 1995-068C 23736 2 6 9 14-Dec-95 OK 78 778 2324 1995-068B 23735 2 11 15 14-Dec-95 OK 79 782 2325 1995-068A 23734 2 6 13 14-Dec-95 OK 80 786 2362 1998-077A 25594 1 7 7 30-Dec-98 OK 81 784 2363 1998-077B 25595 1 8 8 30-Dec-98 OK 82 779 2364 1998-077C 25593 1 2 1 30-Dec-98 OK Notes ----- 1. NORAD Catalog Number is also known as U.S. Space Command (USSPACECOM) object number and NASA catalog number. 2. The numbers listed first in the "Kosmos Numbers" column are the designators assigned by the Russian Federation. Where these differ from the designators assigned by the United States, the latter are given in parentheses. 3. Channel number, k, indicates L1 and L2 carrier frequencies: L1 = 1602. + 0.5625 k (MHz) k L2 = 1246. + 0.4375 k (MHz) k 4. Status codes: Res = satellite not in service but held in reserve OK = satellite fully operational. UNH = satellite currently flagged unhealthy. CHK = satellite undergoing checkout and commissioning. The date listed is the date the satellite was removed from service (Moscow Time) as reported by the Coordinational Scientific Information Center, Moscow. 5. All GLONASS satellites employ cesium atomic clocks. 6. The first GLONASS satellite was launched on 12-Oct-82. GLONASS 1 through 63 are no longer in service. 7. GLONASS 40 and 41 were launched with the Etalon 1 laser ranging satellite. GLONASS 42 and 43 were launched with Etalon 2. 8. The GLONASS numbering scheme used in this table includes the 8 "dummy" satellites orbited as ballast along with "real" satellites on the first 7 GLONASS launches. The second number in the "GLONASS Numbers" column is that assigned by the Russian Space Forces. 9. New GLONASS channel allocations were introduced in September 1993 aimed at reducing interference to radio astronomy. Note the use of the same channel on pairs of antipodal satellites. 10. The most recent triple GLONASS launch took place on 30-Dec-98 at 18:35:46.23 UTC. The satellites have been placed in different slots than previously announced. Furthermore, the previously-reported pairings of GLONASS/Kosmos and NORAD catalog numbers for the satellites from this launch were not correct. USSPACECOM has mixed up the identifications of the satellites as represented in their 2-line orbital element (TLE) sets. Catalog number 25593 and the associated TLE refers to GLONASS 779/Kosmos 2364/1998-077C; 25594 to GLONASS 786/Kosmos 2362/1998-077A; and 25595 to GLONASS 784/Kosmos 2363/1998-077B. USSPACECOM has been informed of the problem. 11. GLONASS 758 (in slot 18) was set unhealthy on 5-Mar-99 (ref. NAGU 019-990309). GLONASS 760 (in slot 17) had been unusable since 30-Jul-99 and was withdrawn from service on 9-Sep-99 (ref. NAGUs 060-990802, 078-990910). GLONASS 762 (in slot 4) was set unhealthy on 3-Sep-99 (ref. NAGU 073-990906). GLONASS 763 (in slot 3) had been unusable since 27-Jul-99 and was withdrawn from service on 5-Oct-99 (ref. NAGUs 059-990728, 088-991006). GLONASS 764 (in slot 6) was set unhealthy on 27-Oct-99 and is scheduled to be put back into operation on 4-Dec-99 (ref. NAGU 092-991028). GLONASS 765 (in slot 20) was set unhealthy on 10-Sep-99 (ref. NAGU 080-990910). GLONASS 768's date of withdrawal from service has been corrected (ref. CSIC). GLONASS 770 (in slot 14) had been unusable since 20-Nov-97 (ref. NAGU 105-971121), was put into operation on 8-Jul-99 (ref. NAGU 049-990709) and was set unhealthy again on 24-Aug-99 (ref. NAGU 071-990825). GLONASS 778 (in slot 15), previously held in reserve, was moved into slot 15 and was put into operation on 26-Apr-99 (ref. NAGU 036-990427). GLONASS 780 (in slot 15) had been unusable since 3-Dec-98 and was withdrawn from service on 6-Apr-99 (ref. NAGUs 079-981203, 027-990407). 12. Number of GLONASS satellites currently in service: 15. 13. Number of GLONASS satellites currently usable: 10. 14. Status of satellites obtained from Michael G. Lebedev and Nicolay Shienok, Coordinational Scientific Information Center, Russian Space Forces (sfcsic@iki3.iki.rssi.ru); the Deutsches Zentrum fuer Luft- und Raumfart GLONASS Updated Information Service; and Peter Daly, CAA Institute of Satellite Navigation, Dept. of Electronic and Electrical Engineering, University of Leeds (pd@elec-eng.leeds.ac.uk). Compiled by Richard B. Langley, Dept. of Geodesy and Geomatics Engineering, University of New Brunswick. Richard B. Langley E-mail: lang@unb.ca Geodetic Research Laboratory Web: http://www.unb.ca/GGE/ Dept. of Geodesy and Geomatics Engineering Phone: +1 506 453-5142 University of New Brunswick Fax: +1 506 453-4943 Fredericton, N.B., Canada E3B 5A3 Fredericton? Where's that? See: http://www.city.fredericton.nb.ca/ ===============================================================================