Multi-Satellite Bias Analysis Report for Worldwide Satellite Laser Ranging Stations

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Archive 2011: (each covers 14 days from the date)

31 Dec 2011 30 Dec 2011 29 Dec 2011 28 Dec 2011 27 Dec 2011 26 Dec 2011 25 Dec 2011 24 Dec 2011 23 Dec 2011 22 Dec 2011 21 Dec 2011 20 Dec 2011 19 Dec 2011 18 Dec 2011 17 Dec 2011 16 Dec 2011 15 Dec 2011 14 Dec 2011 13 Dec 2011 12 Dec 2011 11 Dec 2011 10 Dec 2011 09 Dec 2011 08 Dec 2011 07 Dec 2011 06 Dec 2011 05 Dec 2011 04 Dec 2011 03 Dec 2011 02 Dec 2011 01 Dec 2011

30 Nov 2011 29 Nov 2011 28 Nov 2011 27 Nov 2011 26 Nov 2011 25 Nov 2011 24 Nov 2011 23 Nov 2011 22 Nov 2011 21 Nov 2011 20 Nov 2011 19 Nov 2011 18 Nov 2011 17 Nov 2011 16 Nov 2011 15 Nov 2011 14 Nov 2011 13 Nov 2011 12 Nov 2011 11 Nov 2011 10 Nov 2011 09 Nov 2011 08 Nov 2011 07 Nov 2011 06 Nov 2011 05 Nov 2011 04 Nov 2011 03 Nov 2011 02 Nov 2011 01 Nov 2011

31 Oct 2011 30 Oct 2011 29 Oct 2011 28 Oct 2011 27 Oct 2011 26 Oct 2011 25 Oct 2011 24 Oct 2011 23 Oct 2011 22 Oct 2011 21 Oct 2011 20 Oct 2011 19 Oct 2011 18 Oct 2011 17 Oct 2011 16 Oct 2011 15 Oct 2011 14 Oct 2011 13 Oct 2011 12 Oct 2011 11 Oct 2011 10 Oct 2011 09 Oct 2011 08 Oct 2011 07 Oct 2011 06 Oct 2011 05 Oct 2011 04 Oct 2011 03 Oct 2011 02 Oct 2011 01 Oct 2011

30 Sep 2011 29 Sep 2011 28 Sep 2011 27 Sep 2011 26 Sep 2011 25 Sep 2011 24 Sep 2011 23 Sep 2011 22 Sep 2011 21 Sep 2011 20 Sep 2011 19 Sep 2011 18 Sep 2011 17 Sep 2011 16 Sep 2011 15 Sep 2011 14 Sep 2011 13 Sep 2011 12 Sep 2011 11 Sep 2011 10 Sep 2011 09 Sep 2011 08 Sep 2011 07 Sep 2011 06 Sep 2011 05 Sep 2011 04 Sep 2011 03 Sep 2011 02 Sep 2011 01 Sep 2011

31 Aug 2011 30 Aug 2011 29 Aug 2011 28 Aug 2011 27 Aug 2011 26 Aug 2011 25 Aug 2011 24 Aug 2011 23 Aug 2011 22 Aug 2011 21 Aug 2011 20 Aug 2011 19 Aug 2011 18 Aug 2011 17 Aug 2011 16 Aug 2011 15 Aug 2011 14 Aug 2011 13 Aug 2011 12 Aug 2011 11 Aug 2011 10 Aug 2011 09 Aug 2011 08 Aug 2011 07 Aug 2011 06 Aug 2011 05 Aug 2011 04 Aug 2011 03 Aug 2011 02 Aug 2011 01 Aug 2011

31 Jul 2011 30 Jul 2011 29 Jul 2011 28 Jul 2011 27 Jul 2011 26 Jul 2011 25 Jul 2011 24 Jul 2011 23 Jul 2011 22 Jul 2011 21 Jul 2011 20 Jul 2011 19 Jul 2011 18 Jul 2011 17 Jul 2011 16 Jul 2011 15 Jul 2011 14 Jul 2011 13 Jul 2011 12 Jul 2011 11 Jul 2011 10 Jul 2011 09 Jul 2011 08 Jul 2011 07 Jul 2011 06 Jul 2011 05 Jul 2011 04 Jul 2011 03 Jul 2011 02 Jul 2011 01 Jul 2011

30 Jun 2011 29 Jun 2011 28 Jun 2011 27 Jun 2011 26 Jun 2011 25 Jun 2011 24 Jun 2011 23 Jun 2011 22 Jun 2011 21 Jun 2011 20 Jun 2011 19 Jun 2011 18 Jun 2011 17 Jun 2011 16 Jun 2011 15 Jun 2011 14 Jun 2011 13 Jun 2011 12 Jun 2011 11 Jun 2011 10 Jun 2011 09 Jun 2011 08 Jun 2011 07 Jun 2011 06 Jun 2011 05 Jun 2011 04 Jun 2011 03 Jun 2011 02 Jun 2011 01 Jun 2011

31 May 2011 30 May 2011 29 May 2011 28 May 2011 27 May 2011 26 May 2011 25 May 2011 24 May 2011 23 May 2011 22 May 2011 21 May 2011 20 May 2011 19 May 2011 18 May 2011 17 May 2011 16 May 2011 15 May 2011 14 May 2011 13 May 2011 12 May 2011 11 May 2011 10 May 2011 09 May 2011 08 May 2011 07 May 2011 06 May 2011 05 May 2011 04 May 2011 03 May 2011 02 May 2011 01 May 2011

30 Apr 2011 29 Apr 2011 28 Apr 2011 27 Apr 2011 26 Apr 2011 25 Apr 2011 24 Apr 2011 23 Apr 2011 22 Apr 2011 21 Apr 2011 20 Apr 2011 19 Apr 2011 18 Apr 2011 17 Apr 2011 16 Apr 2011 15 Apr 2011 14 Apr 2011 13 Apr 2011 12 Apr 2011 11 Apr 2011 10 Apr 2011 09 Apr 2011 08 Apr 2011 07 Apr 2011 06 Apr 2011 05 Apr 2011 04 Apr 2011 03 Apr 2011 02 Apr 2011 01 Apr 2011

31 Mar 2011 30 Mar 2011 29 Mar 2011 28 Mar 2011 27 Mar 2011 26 Mar 2011 25 Mar 2011 24 Mar 2011 23 Mar 2011 22 Mar 2011 21 Mar 2011 20 Mar 2011 19 Mar 2011 18 Mar 2011 17 Mar 2011 16 Mar 2011 15 Mar 2011 14 Mar 2011 13 Mar 2011 12 Mar 2011 11 Mar 2011 10 Mar 2011 09 Mar 2011 08 Mar 2011 07 Mar 2011 06 Mar 2011 05 Mar 2011 04 Mar 2011 03 Mar 2011 02 Mar 2011 01 Mar 2011

28 Feb 2011 27 Feb 2011 26 Feb 2011 25 Feb 2011 24 Feb 2011 23 Feb 2011 22 Feb 2011 21 Feb 2011 20 Feb 2011 19 Feb 2011 18 Feb 2011 17 Feb 2011 16 Feb 2011 15 Feb 2011 14 Feb 2011 13 Feb 2011 12 Feb 2011 11 Feb 2011 10 Feb 2011 09 Feb 2011 08 Feb 2011 07 Feb 2011 06 Feb 2011 05 Feb 2011 04 Feb 2011 03 Feb 2011 02 Feb 2011 01 Feb 2011

31 Jan 2011 30 Jan 2011 29 Jan 2011 28 Jan 2011 27 Jan 2011 26 Jan 2011 25 Jan 2011 24 Jan 2011 23 Jan 2011 22 Jan 2011 21 Jan 2011 20 Jan 2011 19 Jan 2011 18 Jan 2011 17 Jan 2011 16 Jan 2011 15 Jan 2011 14 Jan 2011 13 Jan 2011 12 Jan 2011 11 Jan 2011 10 Jan 2011 09 Jan 2011 08 Jan 2011 07 Jan 2011 06 Jan 2011 05 Jan 2011 04 Jan 2011 03 Jan 2011 02 Jan 2011 01 Jan 2011

The old weekly reports from Oct 1999 to Apr 2005: Hit-u (webpage) and NASA CDDIS (ftp).

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History:
[8 Jul 2011] ERS-2 retires (ESA News) and is removed from our analysis.
[7 Jun 2011] New TRF: SLRF2008 (ILRS webpage).
[28 Apr 2011] new email address: t.otsubo@r.hit-u.ac.jp, please update your address book. Power supply has been stable in Apr, and will be ok in May.
[14 Mar 2011] a series of power outage expected from today due to the energy issues caused by the huge earthquake occurred on 11 March. This server will be occasionally shut down.
[03 Aug 2010] updated coordinates (based upon ILRS AWG discussion): 7405 (text file).
[17 Jul 2010] Analysis computer replaced due to a sudden failure of a 5-year old Epson NT9500Pro. New PC is a bit slower, Dell Inspiron 1526 (AMD Turion 64 TK-57 1.9GHz).
[02 Jul 2010] new/updated coordinates (based upon ILRS AWG discussion): 1824, 1879, 7405 (text file).
[13 May 2010] A special quicklook analysis on the coseismic displacement of Concepcion TIGO SLR station is placed here. Note that 2 to 3 metres biases of Concepcion (7405) is not due to their measurement error, but due to this 3.19-m displacement.
[13 Apr 2010] New statistics on "hit rate" of the ILRS Top-20 stations are available here.
[06 Jan 2010] Data server replaced. New machine: Dell Vostro 1220 with Ubuntu 9.10. CRD handling also implemented ahead of the ILRS conversion.
[24 Aug 2009] Moved to http://geo.science.hit-u.ac.jp/slr/bias/, integrated with our laboratory's Plone-based website.
[28 Apr 2009] GIOVE-A and -B (marked as GIOA and GIOB) are included, and GLONASS-115 (GL15) replaces GLONASS-99.
[10 Dec 2008] the 10-year development/operation on this bias analysis in CRL/NICT/HIT-U published in Journal of the Geodetic Society of Japan. Toshimichi Otsubo, Mihoko Kobayashi, Tadahiro Gotoh and Toshihiro Kubo-oka: "Daily Quality Control System of Satellite Laser Ranging Data for the ILRS Network," Journal of the Geodetic Society of Japan, Vol. 54, No. 2, 69-79, 2008 (in Japanese with English abstract).
[24 Jul 2008] new satellite JASON-2 (marked as JAS2) is included in the analysis.
[17 Jul 2008] GLONASS-109 replaces GLONASS-95.
[09 Jan 2008] Geoscience Laboratory of Hitotsubashi University opens its website.
[22 Dec 2007] New TRF: SLRF2005 (coordinates in text).
[08 Oct 2007] GLONASS-102 replaces GLONASS-89.
[18 May 2007] Observation data: EUROLAS Data Center (hourly_global) in addition to NASA CDDIS.
[09 Apr 2007] Moved: Hitotsubashi University starts to provide the daily analysis.
[06 Dec 2006] new station: 7119 (Haleakala TLRS-4; coordinates estimated from Nov-Dec data).
[24 Oct 2006] special reports for systematic error (presented at 15th International Workshop on Laser Ranging): with respect to intensity and applied system delay (with applied system delay variation) in 2005-06 (pdf).
[24 May 2006] moved to a new directory http://www.nict.go.jp/w/w122/control/slr/bias.
[20 May 2006] new coordinates (estimated from May data): 7406.
[12 Apr 2006] set of station coordinates uploaded (text file).
[31 Mar 2006] new station: 7406 (San Juan; coordinates estimated from Feb-Mar data).
[20 Mar 2006] corrected the centre-of-mass correction of GLONASS-87 and 89.
[17 Feb 2006] PC replaced by Epsondirect NT9500Pro (Intel Core Duo 2.16 GHz).
[28 Dec 2005] added: 7821 (newly located Shanghai station).
[17 Oct 2005] special reports on systematic error (presented at ILRS Fall 2005 Workshop): with respect to intensity in the span from Oct 2004 to Sep 2005 (pdf).
[14 Oct 2005] computer trouble. Switched to another PC (Dell Inspiron 8200).
[12 Oct 2005] corrected the centre-of-mass correction of GLONASS-95.
[27 Sep 2005] GLONASS-95 replaces GLONASS-84.
[9 Sep 2005] added: 7130 (ITRF2000 coordinates).
[30 Aug 2005] new coordinates (estimated from Aug data): 7358.
[18 Jun 2005] daily-updated EOP is used instead of the weekly-updated mark3 file.
[10 Jun 2005] new coordinates (estimated from May-Jun data): 7848.
[31 May 2005] Major Upgrade: software concerto v4.10 (mostly compatible to IERS Conventions 2003), daily webpage update, and more satellites. Station coordinates are still based on ITRF2000 except newly adjusted 1824, 1831, 1873, 7231, 7249, 7308, 7355, 7357, 7403, 7405, 7501, 7806, 7825, 7830, 7832, 7838, 7841 and 7941.
[31 Mar 2005] ftp service closed.
[06 Feb 2005] switched to the new data server cddis.gsfc.nasa.gov.
[18 Aug 2004] new station: 7825 (rebuilt Mt Stromlo; coordinates estimated from Jun-Jul data).
[20 Jun 2004] new coordinates (estimated from Dec-Jun data): 1873, 7249 and 7832.
[14 Jun 2004] special reports for systematic error (presented at 14th International Workshop on Laser Ranging): with respect to intensity in 2003-04 (pdf).
[01 Apr 2004] new institute name NICT, and new domain name nict.go.jp.
[02 Dec 2003] new coordinates (estimated from Aug-Nov data): 7405.
[04 Sep 2003] new coordinates (estimated from Apr-Aug data): 1824, 7249, 7355, 7357 (new Beijing), 7403, 7830 (new Chania) and 7832.
[23 Jan 2003] new coordinates (estimated from Oct-Jan data): 1824.
[14 Jan 2003] new station: 7841 (Potsdam; using given station coordinates).
[01 Nov 2002] special reports for systematic error (presented at 13th International Workshop on Laser Ranging): with respect to intensity and applied system delay in 2001-02 (pdf).
[18 Oct 2002] new station: 1831 (Bryuhovychi). new coordinates (estimated from Feb-Sep data): 7806.
[21 Aug 2002] minor change in the format. Added 'wlen' (wavelength in nm) at the end of each line. See 7810.
[29 Jul 2002] new coordinates again (estimated from Apr-Jul data): 7405.
[19 Jul 2002] new coordinates (estimated from Apr-Jul data): 7405.
[25 Jun 2002] new coordinates (estimated from Jan-Jun data): 1863, 1873 and 7405.
[11 Jun 2002] new station: 7405 (Concepcion TIGO; approx coordinates given by S Riepl) and new coordinates: 1863 (new eccentricity from 1864 given by V Husson).
[09 May 2002] new station: 7848 (Ajaccio). updated coordinates: 7403, 7501, 7806, 7824 and 7832.
[27 Nov 2001] added 1863 (Maidanak; ITRF97 coordinates).
[25 Oct 2001] started ftp service.
[20 Oct 2001] new stations: 7356 and 7941.
[27 Aug 2001] new stations: 1824 and 7355; revised coordinates: 7339 and 7403.
[04 Apr 2001] new models: ITRF2000, GRIM5-S1 and GM=3.986004415e+14.
[08 Dec 2000] moved to www.crl.go.jp.
[29 Sep 2000] added 7343 (new Beijing) using a temporally solved position.
[07 Sep 2000] added 7501 (Hartebeesthoek) with ITRF97 coordinates + new ecc vector.
[16 Jun 2000] added 7231 (new Wuhan) using a temporally solved position.
[01 May 2000] started sending the reports to SLReport.
[28 Mar 2000] new format (rb and tb: long digits).
[18 Mar 2000] opened the fortnight summary in this html file.
[08 Dec 1999] added 7820 (Kunming) & revised station pos of 7124,7328,7335,7337,7339,7806,7845 and 7849.
[17 Nov 1999] started 14-day, 7-satellite report.

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contact: Toshimichi Otsubo (email: t.otsubo@r.hit-u.ac.jp, website: http://geo.science.hit-u.ac.jp/)