What's new on DORIS

New site at Ulaanbaatar (ULAC) 
A new DORIS station has recently been installed in Ulaanbaatar, Mongolia
(see dorismail ftp://ftp.ids-doris.org/pub/ids/dorismail/dorismail.1406)

New point at Male (MAMC).

The DORIS antenna at MALE has been replaced in order to overcome signal power loss and disruption since late December 2023 (see dorismail 1400).

Local tie file updated.

New point at Höfn (HOGC).

The DORIS antenna at HOFN has been replaced in order to overcome power loss and disruption over the past few months (see dorismail 1392).

New point at Crozet (CRRC).
The DORIS antenna at CROZET has been replaced in order to overcome recurrent power loss and disruption (see dorismail 1385).

New point at Rothera (ROBC).
The DORIS station at ROTHERA (Antarctica) is back to operation after a year outage due to a problem with the routing of the spare equipment. The antenna was replaced (see dorismail 1384).

New point at Rikitea (RIMC).
The DORIS station at RIKITEA (Gambier Islands, French Polynesia) was completely renovated in order to better meet the DORIS system requirements. The antenna was moved to a new support 21 m southeast and the whole equipment was upgraded (see dorismail 1378).

New point at Gavdos (GAVC) 
After a first occupation from 2003 to 2014, DORIS is back to Gavdos Island in Crete, Greece.
A new DORIS station has recently been installed at the new ESA Permanent Facility for Altimetry Calibration (GVD1 Cal/Val site) in Gavdos Island (see dorismail 1367).

New version of the file tie vectors from DORIS to other techniques  (see dorismail 1369).

Local tie file updated (see dorismail 1365).

New point at Santa Cruz (SCSC)
The DORIS station at SANTA CRUZ, Galapagos, Ecuador was recently upgraded with 4th generation beacon and Starec C antenna (see dorismail 1358).

New point at Marion Island (MAVC)
The DORIS station at MARION ISLAND was recently upgraded with 4th generation beacon and Starec C antenna (see dorismail 1355).

New site at Hanga Roa (HROC) 
A new DORIS station has recently been installed in Easter Island, Chile, at Hanga Roa (see dorismail 1353).

New point at Nouméa (NOXC)

The DORIS station at NOUMEA (New Caledonia, South Pacific) was recently upgraded with 4th generation beacon and Starec C antenna (see dorismail 1343).

New point at Futuna (FUUC)

The DORIS station at FUTUNA (French overseas collectivity, South Pacific) was recently upgraded with 4th generation beacon and C antenna, and has been back to operation after more than 2-year outage (see dorismail 1339).

New point at Ny-Alesund II (SVBC)

The DORIS antenna at NY-ALESUND II has recently been replaced in order to overcome recurrent power loss and disruption (see dorismail 1330).

New point at San Juan (SJVC)

The DORIS station at SAN JUAN (Argentina) was recently upgraded with 4th generation beacon and C antenna, and has been back to operation after a 2-year outage.(see dorismail 1323). 

Removal Yuzhno-Sakhalinsk (SAKB)

The DORIS station at YUZHNO-SAKHALINSK, Russia, has been definitively removed (see dorismail 1321).

Removal Krasnoyarsk (KRBB)

The DORIS station at KRASNOYARSK, Russia, has been definitively removed (see dorismail 1320).

Jason3 on interleaved orbit.
A series of maneuvers beginning on April 7, 2022 placed Jason-3 in an interleaved orbit with Sentinel-6 Michael Freilich which became the new Reference Altimetry Mission from that date (see dorismail 1316).

Local tie file updated and accessible via the following links: ftp; https (see dorismail 1312).

New point at Male (MALC).
The DORIS station in Maldives was completely renovated in order to better meet the DORIS system requirements. The antenna was moved to a new support 27 m northeast and the whole equipment was changed (see dorismail 1292).

New point at La Réunion (see dorismail 1285). The DORIS station equipment has been replaced in order to overcome recurrent power loss and disruption. The position of the antenna reference point slightly changed.

Local tie file updated (see dorismail 1280).

HY-2D launched on May 19 with DORIS on-board (dorismail 1279)

New point at Kerguelen (KEYC):

Following required modification in the antenna support of the DORIS station at KERGUELEN Islands (French Southern and Antarctic Lands), the position of the antenna reference point shifted slightly. (see dorismail 1278)

New point at Rothera (ROZC) upgraded with 4th generation beacon and C antenna (see dorismail 1275)

New point at Kerguelen (KEXC) upgraded with 4th generation beacon and C antenna (see dorismail 1272)

Sentinel-6A a new DORIS mission in orbit (dorismail 1252)

Jason-3/DORIS instrument was forced to stand-by mode on 2020/10/27 and restarted on 2020/10/29 (dorismail 1249)

New site Höfn.
A new DORIS station has recently been installed at Höfn (Iceland), in the geodetic observatory of the National Land Survey of Iceland (LMI) (see dorismail 1246). This new station replaces the former DORIS station of Reykjavik (see dorismail 1247).

HY-2A DORIS data are no longer distributed since September 12. Since June 11, the satellite has been in "orbit maintenance mode" with all payloads on board stopped (altimeter, radiometer...), except DORIS which remained on. Then, on September 11, NSOAS stopped the distribution of DORIS data (see dorismail 1243).

HY-2C launched on September 21 with DORIS on-board (dorismail 1241)

Jason-3 is back to operations. It was in Safe Hold Mode between 2020/06/16 and 2020/06/19 (dorismail 1234).

New point at Crozet Island (see dorismail 1230)

New version of the file tie vectors from DORIS to other techniques  (see dorismail 1225).

Local tie file updated (see dorismail 1224).

Both reachable through the Documents page (section "Stations")

New point at La Reunion (see dorismail 1223)

DORIS 30th anniversary  (dorismail 1217)

The DORIS system is 30 years old in February 2020, 30 years of continuous operations at the heart of the of altimetry mission performance for oceanography and geodetic applications. Read more here.

Jason-3/DORIS data interruption due to Safe Hold Mode between 2020/01/31 and 2020/02/12 (dorismail 1220)

Erratum Ground antenna types; the name STAREC D is abandoned.
Following new measurements in the anechoic chambers it appeared that the antennas that were named STAREC D have exactly the same characteristics as the antennas named STAREC C.
As a consequence, the antex starec D phase law file doris_phase_law_antex_starecD.txt is removed and the related documents are corrected.
More details in dorismail 1202 (cancels and replaces the previous dorismail 1191)

Antenna change at St John's: the dorismail 1204 cancels and replaces the previous dorismail 1188

New point at Santa-Cruz (see dorismail 1207)

OSTM/Jason-2 end of mission (dorismail 1195)

Jason-2 altimetry satellite decommissioned after more than 11 years of ocean monitoring (joint press release from CNES, NASA/JPL, NOAA, and EUMETSAT)