From Richard Fri Jan 8 17:14:44 1993 From: Richard (Richard) Date: 8 JAN 1993 17:14:44 Subject: [IGSMAIL-162] Navstar GPS Constellation Status (93-01-07) Message-ID: *********************************************************************** IGS Electronic Mail 8-JAN-1993 17:14:44 Message Number 162 *********************************************************************** From: Richard Langley Subject: Navstar GPS Constellation Status (93-01-07) ----------------------------------------------------- Navstar GPS Constellation Status (93-01-07) Blk NASA Orbit Launch II PRN Internat. Catalog Plane Date Seq SVN Code ID Number Pos'n (UT) Clock Available/Decommissioned -------------------------------------------------------------------------------- Block I 1 4 1978-020A 10684 78-02-22 78-03-29 85-07-17 2 7 1978-047A 10893 78-05-13 78-07-14 81-07-16 3 6 1978-093A 11054 78-10-06 78-11-13 92-05-18 4 8 1978-112A 11141 78-12-10 79-01-08 89-10-14 5 5 1980-011A 11690 80-02-09 80-02-27 83-11-28 6 9 1980-032A 11783 80-04-26 80-05-16 91-03-06 7 81-12-18 Launch failure 8 11 1983-072A 14189 C-3 83-07-14 Rb 83-08-10 9 13 1984-059A 15039 C-1 84-06-13 Cs 84-07-19 10 12 1984-097A 15271 A-1 84-09-08 Rb 84-10-03 11 3 1985-093A 16129 C-4 85-10-09 Rb 85-10-30 Block II II-1 14 14 1989-013A 19802 E-1 89-02-14 Cs 89-04-15 II-2 13 2 1989-044A 20061 B-3 89-06-10 Cs 89-08-10 II-3 16 16 1989-064A 20185 E-3 89-08-18 Cs 89-10-14 II-4 19 19 1989-085A 20302 A-4 89-10-21 Cs 89-11-23 II-5 17 17 1989-097A 20361 D-3 89-12-11 Cs 90-01-06 II-6 18 18 1990-008A 20452 F-3 90-01-24 Cs 90-02-14 22:26 UT II-7 20 20 1990-025A 20533 B-2 90-03-26 Cs 90-04-18 23:13 UT II-8 21 21 1990-068A 20724 E-2 90-08-02 Cs 90-08-22 15:00 UT II-9 15 15 1990-088A 20830 D-2 90-10-01 Cs 90-10-15 00:39 UT Block IIA II-10 23 23 1990-103A 20959 E-4 90-11-26 Cs 90-12-10 23:45 UT II-11 24 24 1991-047A 21552 D-1 91-07-04 Cs 91-08-30 04:44 UT II-12 25 25 1992-009A 21890 A-2 92-02-23 Rb 92-03-24 11:00 UT II-13 28 28 1992-019A 21930 C-2 92-04-10 Cs 92-04-25 20:32 UT II-14 26 26 1992-039A 22014 F-2 92-07-07 Cs 92-07-23 19:43 UT II-15 27 27 1992-058A 22108 A-3 92-09-09 Cs 92-09-30 20:08 UT II-16 32 32 1992-079A 22231 F-1 92-11-22 Cs 92-12-11 14:49 UT II-17 29 29 1992-089A 22275 F-4 92-12-18 Cs 93-01-05 16:39 UT II-18 22 22 To be launched not earlier than 93-02-03. Notes 1. NASA Catalog Number is also known as NORAD or U.S. Space Command object number. 2. No orbital plane position = satellite no longer operational. 3. Clock: Rb = Rubidium; Cs = Cesium 4. PRN 3 is operating on Rb clock without temperature control. 5. PRN 12 clock switched from Cs to Rb on 6 February 1992. 6. PRN 11 clock switched from Cs to Rb on 4 April 1992. 7. PRN 11 clock switch to last rubidium during 7 days beginning 29 September 1992. 8. PRN 14 suffered failure of its operational Cs clock on 29 August 1992. Satellite operating on second Cs clock by 1 September 1992. 9. The power supplies of PRN 11 and 13 have insufficient capacity to maintain L1/L2 transmissions during eclipse season. During this period, the L1/L2 transmissions of PRN 11 and 13 may be turned off for up to 12 hours a day. ============================================================================== Richard B. Langley Internet: LANG at UNB.CA or SE at UNB.CA Geodetic Research Laboratory BITnet: LANG at UNB or SE at UNB Dept. of Surveying Engineering Phone: (506) 453-5142 University of New Brunswick FAX: (506) 453-4943 Fredericton, N.B., Canada E3B 5A3 Telex: 014-46202 ==============================================================================