Author: Pierre Lauber ILRS Combined Range Bias Report 2 ********************************* 2026-02-17 00:00 UT - 2026-02-25 00:00 UT Compiled by: SLR Observatory Zimmerwald Date : 2026-02-25 12:30 UT E-Mail : pierre.lauber@unibe.ch ------------------------------------------------------------- 1874 MDVS Mendeleevo HIT-U JCET CODE sat wl rb pr rb pr rb pr ------------------------------------------------------------- 1874 2026-02-17 16:46 ETA1 532 -30 3 ------------------------------------------------------------- 1874 Average 532 -30 3 ------------------------------------------------------------- ------------------------------------------------------------- 1884 RIGL Riga HIT-U JCET CODE sat wl rb pr rb pr rb pr ------------------------------------------------------------- 1884 2026-02-17 16:49 ETA1 532 -23 18 25 20 1884 2026-02-20 20:51 ETA2 532 28 26 535 16 1884 2026-02-20 23:27 ETA1 532 20 9 15 9 1884 2026-02-21 00:17 AJIS 532 12 7 1884 2026-02-21 02:11 AJIS 532 -8 10 ------------------------------------------------------------- 1884 Average 532 5 14 191 15 ------------------------------------------------------------- ------------------------------------------------------------- 1888 HIT-U JCET CODE sat wl rb pr rb pr rb pr ------------------------------------------------------------- 1888 2026-02-21 02:16 AJIS 532 -16 2 1888 2026-02-21 04:13 AJIS 532 -53 2 1888 2026-02-24 01:35 AJIS 532 -5 3 ------------------------------------------------------------- 1888 Average 532 -24 2 ------------------------------------------------------------- ------------------------------------------------------------- 1891 HIT-U JCET CODE sat wl rb pr rb pr rb pr ------------------------------------------------------------- 1891 2026-02-17 01:58 AJIS 532 65 5 1891 2026-02-17 04:02 AJIS 532 -33 4 1891 2026-02-20 01:21 AJIS 532 -14 6 1891 2026-02-20 03:22 AJIS 532 -16 13 1891 2026-02-24 01:46 AJIS 532 -19 0 ------------------------------------------------------------- 1891 Average 532 -3 5 ------------------------------------------------------------- ------------------------------------------------------------- 1893 KTZL Katzively HIT-U JCET CODE sat wl rb pr rb pr rb pr ------------------------------------------------------------- 1893 2026-02-22 01:22 AJIS 532 8 16 ------------------------------------------------------------- 1893 Average 532 8 16 ------------------------------------------------------------- ------------------------------------------------------------- 7090 YARL Yarragadee HIT-U JCET CODE sat wl rb pr rb pr rb pr ------------------------------------------------------------- 7090 2026-02-17 00:07 F102 532 -5 3 7090 2026-02-17 01:10 F101 532 -15 5 7090 2026-02-17 04:26 AJIS 532 18 3 7090 2026-02-17 06:30 AJIS 532 23 9 7090 2026-02-17 08:36 AJIS 532 5 3 7090 2026-02-17 10:35 AJIS 532 12 1 7090 2026-02-17 12:30 ETA1 532 -33 7 7090 2026-02-17 12:37 AJIS 532 -7 4 7090 2026-02-17 13:31 ETA1 532 -1 7 7090 2026-02-17 14:42 AJIS 532 12 3 7090 2026-02-17 14:55 ETA2 532 14 5 7090 2026-02-17 16:49 ETA2 532 -4 5 7090 2026-02-18 05:31 AJIS 532 53 3 7090 2026-02-18 09:41 AJIS 532 23 2 7090 2026-02-18 11:56 ETA1 532 1 6 21 6 7090 2026-02-18 13:43 AJIS 532 -62 0 7090 2026-02-18 13:46 ETA2 532 -28 5 7090 2026-02-18 15:19 ETA2 532 1 8 7090 2026-02-18 15:19 F102 532 0 3 7090 2026-02-18 15:52 AJIS 532 25 13 7090 2026-02-18 16:06 F101 532 -11 5 7090 2026-02-19 04:40 AJIS 532 25 3 7090 2026-02-19 06:44 AJIS 532 32 4 7090 2026-02-19 08:46 AJIS 532 24 4 7090 2026-02-19 23:34 F101 532 -16 2 7090 2026-02-20 03:47 AJIS 532 59 6 7090 2026-02-20 05:52 AJIS 532 14 3 7090 2026-02-20 07:50 AJIS 532 19 3 7090 2026-02-20 09:55 AJIS 532 14 4 7090 2026-02-20 11:57 AJIS 532 -2 4 7090 2026-02-20 12:34 ETA2 532 -4 3 -351 6 7090 2026-02-20 14:06 AJIS 532 -12 1 7090 2026-02-20 16:03 AJIS 532 -17 1 7090 2026-02-21 07:02 AJIS 532 -5 2 7090 2026-02-21 09:01 AJIS 532 5 3 7090 2026-02-21 11:05 AJIS 532 0 3 7090 2026-02-21 13:06 AJIS 532 9 2 7090 2026-02-21 15:09 AJIS 532 -13 2 7090 2026-02-21 15:19 F101 532 -15 6 7090 2026-02-22 08:07 AJIS 532 19 3 7090 2026-02-22 10:10 AJIS 532 7 2 7090 2026-02-22 12:14 AJIS 532 6 4 7090 2026-02-22 14:21 AJIS 532 -16 1 7090 2026-02-22 18:03 F102 532 1 2 7090 2026-02-22 19:33 F101 532 1 8 7090 2026-02-22 21:24 ETA2 532 91 6 7090 2026-02-22 22:27 ETA2 532 2 7 7090 2026-02-23 01:42 ETA1 532 -3 8 86 8 7090 2026-02-23 03:05 AJIS 532 52 7 7090 2026-02-23 05:07 AJIS 532 37 2 7090 2026-02-23 07:09 AJIS 532 13 6 7090 2026-02-23 09:13 AJIS 532 9 4 7090 2026-02-23 11:18 AJIS 532 0 1 7090 2026-02-23 13:21 AJIS 532 33 2 7090 2026-02-23 15:22 AJIS 532 8 1 7090 2026-02-23 18:09 ETA2 532 6 6 -50 6 7090 2026-02-24 00:04 ETA1 532 3 2 60 1 7090 2026-02-24 00:44 F102 532 0 2 7090 2026-02-24 06:15 AJIS 532 18 6 7090 2026-02-24 12:24 AJIS 532 43 3 ------------------------------------------------------------- 7090 Average 532 8 3 -21 5 ------------------------------------------------------------- ------------------------------------------------------------- 7105 GODL Greenbelt HIT-U JCET CODE sat wl rb pr rb pr rb pr ------------------------------------------------------------- 7105 2026-02-24 07:17 AJIS 532 24 2 7105 2026-02-24 13:29 AJIS 532 -24 4 7105 2026-02-24 15:24 AJIS 532 2 1 ------------------------------------------------------------- 7105 Average 532 0 2 ------------------------------------------------------------- ------------------------------------------------------------- 7110 MONL Monument Peak HIT-U JCET CODE sat wl rb pr rb pr rb pr ------------------------------------------------------------- 7110 2026-02-24 04:59 ETA1 532 0 5 ------------------------------------------------------------- 7110 Average 532 0 5 ------------------------------------------------------------- ------------------------------------------------------------- 7124 THTL Tahiti HIT-U JCET CODE sat wl rb pr rb pr rb pr ------------------------------------------------------------- 7124 2026-02-17 09:01 AJIS 532 19 2 7124 2026-02-17 11:02 AJIS 532 21 2 7124 2026-02-18 08:07 AJIS 532 7 2 7124 2026-02-18 10:08 AJIS 532 24 2 7124 2026-02-19 09:15 AJIS 532 15 2 7124 2026-02-20 08:22 AJIS 532 2 2 7124 2026-02-20 10:21 AJIS 532 -1 2 7124 2026-02-23 22:22 AJIS 532 -3 3 7124 2026-02-24 06:46 AJIS 532 28 2 7124 2026-02-24 08:44 AJIS 532 6 2 ------------------------------------------------------------- 7124 Average 532 11 2 ------------------------------------------------------------- ------------------------------------------------------------- 7237 CHAL Changchun HIT-U JCET CODE sat wl rb pr rb pr rb pr ------------------------------------------------------------- 7237 2026-02-18 14:38 F101 532 -17 3 7237 2026-02-18 16:14 AJIS 532 36 5 7237 2026-02-18 18:15 AJIS 532 15 4 7237 2026-02-18 20:14 AJIS 532 4 9 7237 2026-02-18 22:19 AJIS 532 16 9 7237 2026-02-19 15:12 F102 532 -21 3 7237 2026-02-19 18:42 F101 532 * * 7237 2026-02-19 19:25 AJIS 532 -81 5 7237 2026-02-19 21:26 AJIS 532 13 7 7237 2026-02-19 23:27 AJIS 532 27 11 7237 2026-02-20 18:28 AJIS 532 5 8 7237 2026-02-21 21:39 AJIS 532 2 8 7237 2026-02-21 23:39 AJIS 532 -10 4 7237 2026-02-22 16:41 AJIS 532 -26 1 7237 2026-02-22 18:39 AJIS 532 -18 5 7237 2026-02-22 20:43 AJIS 532 9 6 7237 2026-02-22 22:44 AJIS 532 7 6 7237 2026-02-23 15:46 AJIS 532 53 0 7237 2026-02-23 17:45 AJIS 532 5 4 7237 2026-02-23 19:54 AJIS 532 -192 4 7237 2026-02-23 21:56 AJIS 532 -202 9 7237 2026-02-23 23:54 AJIS 532 -6 5 7237 2026-02-24 10:27 F101 532 -2 6 7237 2026-02-24 14:53 AJIS 532 12 5 7237 2026-02-24 16:48 AJIS 532 16 4 7237 2026-02-24 18:54 AJIS 532 35 10 ------------------------------------------------------------- 7237 Average 532 3 5 ------------------------------------------------------------- ------------------------------------------------------------- 7306 HIT-U JCET CODE sat wl rb pr rb pr rb pr ------------------------------------------------------------- 7306 2026-02-19 02:26 AJIS 532 -13 4 7306 2026-02-19 10:52 ETA2 532 -7 4 77 3 7306 2026-02-19 13:04 ETA1 532 -2 11 -29 11 7306 2026-02-19 15:19 AJIS 532 63 1 ------------------------------------------------------------- 7306 Average 532 10 5 24 7 ------------------------------------------------------------- ------------------------------------------------------------- 7403 AREL Arequipa HIT-U JCET CODE sat wl rb pr rb pr rb pr ------------------------------------------------------------- 7403 2026-02-23 16:38 AJIS 532 113 1 ------------------------------------------------------------- 7403 Average 532 113 1 ------------------------------------------------------------- ------------------------------------------------------------- 7501 HARL Hartebeesthoek HIT-U JCET CODE sat wl rb pr rb pr rb pr ------------------------------------------------------------- 7501 2026-02-18 17:33 AJIS 532 -4 2 7501 2026-02-18 19:35 AJIS 532 14 3 7501 2026-02-18 21:38 AJIS 532 39 6 7501 2026-02-19 18:41 AJIS 532 0 7 ------------------------------------------------------------- 7501 Average 532 12 4 ------------------------------------------------------------- ------------------------------------------------------------- 7810 ZIML Zimmerwald HIT-U JCET CODE sat wl rb pr rb pr rb pr ------------------------------------------------------------- 7810 2026-02-24 07:36 AJIS 532 33 2 ------------------------------------------------------------- 7810 Average 532 33 2 ------------------------------------------------------------- ------------------------------------------------------------- 7817 HIT-U JCET CODE sat wl rb pr rb pr rb pr ------------------------------------------------------------- 7817 2026-02-17 01:38 AJIS 1064 -24 1 7817 2026-02-18 23:44 ETA2 1064 -14 1 38 2 7817 2026-02-19 08:07 AJIS 1064 33 6 7817 2026-02-19 10:02 AJIS 1064 13 1 7817 2026-02-19 21:41 ETA2 1064 -9 1 39 2 7817 2026-02-20 00:41 ETA1 1064 -9 0 -76 2 7817 2026-02-20 01:01 AJIS 1064 -19 1 7817 2026-02-20 11:07 AJIS 1064 2 1 7817 2026-02-20 20:13 ETA2 1064 5 0 7817 2026-02-20 22:59 ETA1 1064 -18 1 7817 2026-02-21 00:06 AJIS 1064 -6 2 7817 2026-02-21 19:49 ETA2 1064 -6 0 7817 2026-02-21 22:09 ETA1 1064 2 1 7817 2026-02-22 01:11 AJIS 1064 -36 1 7817 2026-02-22 03:08 AJIS 1064 -7 3 7817 2026-02-22 05:12 AJIS 1064 26 1 7817 2026-02-23 23:26 AJIS 1064 -42 1 7817 2026-02-24 01:19 AJIS 1064 17 2 7817 2026-02-24 03:21 AJIS 1064 -13 3 7817 2026-02-24 05:26 AJIS 1064 7 1 ------------------------------------------------------------- 7817 Average 1064 -4 1 0 2 ------------------------------------------------------------- ------------------------------------------------------------- 7819 HIT-U JCET CODE sat wl rb pr rb pr rb pr ------------------------------------------------------------- 7819 2026-02-23 15:36 AJIS 532 52 3 7819 2026-02-23 17:35 AJIS 532 26 7 7819 2026-02-23 17:40 ETA2 532 12 2 -37 2 7819 2026-02-23 18:31 F102 532 -37 3 7819 2026-02-23 19:41 AJIS 532 -45 2 7819 2026-02-23 20:42 ETA1 532 26 3 30 3 7819 2026-02-23 21:42 AJIS 532 -18 5 ------------------------------------------------------------- 7819 Average 532 2 3 -3 2 ------------------------------------------------------------- ------------------------------------------------------------- 7821 SHA2 Shanghai2 HIT-U JCET CODE sat wl rb pr rb pr rb pr ------------------------------------------------------------- 7821 2026-02-23 02:47 AJIS 532 -60 2 ------------------------------------------------------------- 7821 Average 532 -60 2 ------------------------------------------------------------- ------------------------------------------------------------- 7824 SFEL San Fernando HIT-U JCET CODE sat wl rb pr rb pr rb pr ------------------------------------------------------------- 7824 2026-02-20 01:03 AJIS 532 -48 2 7824 2026-02-21 00:08 AJIS 532 -2 5 7824 2026-02-23 00:16 AJIS 532 -113 5 ------------------------------------------------------------- 7824 Average 532 -54 4 ------------------------------------------------------------- ------------------------------------------------------------- 7838 SISL Simosato HIT-U JCET CODE sat wl rb pr rb pr rb pr ------------------------------------------------------------- 7838 2026-02-17 02:10 AJIS 532 -48 3 7838 2026-02-18 01:16 AJIS 532 -4 1 7838 2026-02-19 02:25 AJIS 532 13 4 7838 2026-02-23 21:54 AJIS 532 16 4 ------------------------------------------------------------- 7838 Average 532 -5 3 ------------------------------------------------------------- ------------------------------------------------------------- 7839 GRZL Graz HIT-U JCET CODE sat wl rb pr rb pr rb pr ------------------------------------------------------------- 7839 2026-02-17 07:01 ETA1 532 0 26 7839 2026-02-17 07:48 AJIS 532 -19 0 7839 2026-02-17 09:52 AJIS 532 -3 2 7839 2026-02-17 21:41 F102 532 -6 7 7839 2026-02-17 23:36 F101 532 2 7 7839 2026-02-18 00:50 AJIS 532 -19 2 7839 2026-02-18 08:58 AJIS 532 0 1 ------------------------------------------------------------- 7839 Average 532 -6 6 ------------------------------------------------------------- ------------------------------------------------------------- 7840 HERL Herstmonceux HIT-U JCET CODE sat wl rb pr rb pr rb pr ------------------------------------------------------------- 7840 2026-02-17 05:49 AJIS 532 32 1 7840 2026-02-17 07:16 ETA1 532 3 8 12 9 7840 2026-02-17 07:46 AJIS 532 37 1 7840 2026-02-17 09:49 AJIS 532 42 1 7840 2026-02-17 12:05 ETA2 532 -20 4 5 1 7840 2026-02-24 16:28 ETA1 532 1 6 ------------------------------------------------------------- 7840 Average 532 15 3 8 5 ------------------------------------------------------------- ------------------------------------------------------------- 7841 POT3 Potsdam HIT-U JCET CODE sat wl rb pr rb pr rb pr ------------------------------------------------------------- 7841 2026-02-19 00:09 F102 532 -18 5 7841 2026-02-19 01:57 AJIS 532 -27 1 7841 2026-02-19 03:56 AJIS 532 14 1 7841 2026-02-19 04:17 ETA1 532 0 3 -3 2 7841 2026-02-20 05:02 AJIS 532 62 3 7841 2026-02-20 18:59 F101 532 -27 0 ------------------------------------------------------------- 7841 Average 532 0 2 -3 2 ------------------------------------------------------------- ------------------------------------------------------------- 7845 GRSM Grasse HIT-U JCET CODE sat wl rb pr rb pr rb pr ------------------------------------------------------------- 7845 2026-02-17 16:28 ETA1 532 -19 4 40 6 7845 2026-02-17 20:41 F101 532 -19 1 7845 2026-02-17 20:57 F102 532 -14 2 7845 2026-02-18 00:47 AJIS 532 31 12 7845 2026-02-18 01:20 ETA2 532 -2 3 63 3 7845 2026-02-18 02:54 AJIS 532 -7 7 7845 2026-02-18 04:35 ETA1 532 -3 6 25 7 7845 2026-02-18 04:49 AJIS 532 28 4 7845 2026-02-18 06:52 AJIS 532 60 8 7845 2026-02-18 08:53 AJIS 532 28 7 7845 2026-02-18 10:42 F101 532 -21 3 7845 2026-02-20 09:08 AJIS 532 45 7 7845 2026-02-20 19:26 F102 532 -24 1 7845 2026-02-20 19:51 ETA2 532 7 3 622 1 7845 2026-02-20 20:12 F101 532 -21 3 7845 2026-02-20 22:56 ETA1 532 0 3 -25 2 7845 2026-02-21 00:08 AJIS 532 8 9 ------------------------------------------------------------- 7845 Average 532 4 4 145 3 ------------------------------------------------------------- ------------------------------------------------------------- 8834 WETL Wettzell HIT-U JCET CODE sat wl rb pr rb pr rb pr ------------------------------------------------------------- 8834 2026-02-18 06:53 AJIS 1064 30 2 8834 2026-02-18 06:53 AJIS 532 3 2 8834 2026-02-20 18:52 F102 1064 -18 3 8834 2026-02-24 13:53 ETA2 1064 -2 1 8834 2026-02-24 17:03 ETA1 1064 -5 3 8834 2026-02-24 21:14 F102 1064 39 2 ------------------------------------------------------------- 8834 Average 1064 8 2 8834 Average 532 3 2 ------------------------------------------------------------- sc : Satellite wl : Wavelength (nm) rb : Range bias (mm) pr : Precision estimate (mm) * : Processed but no value given ***** : Format overflow Average: Averages of range biases and precision estimates (outliers rejected) HIT-U : Hitotsubashi University (Kunitachi, Tokyo) JCET : Joint Center for Earth System Technology, UMBC/GSFC CODE : Center for Orbit Determination in Europe (Bern) AJIS : Ajisai ETA1 : Etalon1 ETA2 : Etalon2 F101 : Galileo101 F102 : Galileo102