Exposure
ID
GRAVI.2025-05-13T07:08:22.829_1
Header ID
GRAVI.2025-05-13T07:08:22.829
Date updated
2025-05-13 07:25:56 UTC+0000
Release date
2026-05-13 07:25:56 UTC+0000
UTC Start
2025-05-13 07:08:22.829
UTC End
2025-05-13 07:14:22.829
MJD Start
60808.29748645
MJD End
60808.301653116665
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.010856000000000001
Ambient temperature (°C)
16.48
Seeing (arcsec)
0.305
Observation
ID
67330
Category
science
Program ID
115.27WT.001
Program Title
THE GALACTIC CENTER WITH GRAVITY(+) - PROBING EVENT HORIZON SCALE PHYSICS WITH STARS AND FLARES
Program Type
GTO
PI / COI
EISENHAUER / GILLESSEN / GENZEL / OTT / MANG / DRESCHER / RIBEIRO / SADUN BORDONI / STRAUBMEIER / GARCIA / PAUMARD / BOURDAROT / STURM / LUTZ / LE BOUQUIN / CAO / KREIDBERG / HOENIG / FOSCHI / PERRIN / CARDOSO / AIMAR / URSO / ABD EL DAYEM / ROUSSELET-PER
Target
ID
50071
Name
SGRA
RA
266.41631
DEC
-29.00736
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
LOW-SPLIT
Instrument sub-mode
DUAL
Stations
U1 U2 U3 U4
Projected baselines
Baseline Length start Length end Angle start Angle end
U1-U2 56.3930 56.3410 26.6000 27.3000
U1-U3 102.1510 102.0390 32.9000 33.6000
U1-U4 130.0240 129.8440 61.0090 61.7510
U2-U3 46.5260 46.4670 40.6000 41.4000
U2-U4 89.3910 89.3010 81.9060 82.6830
U3-U4 62.4680 62.4670 111.3210 112.1070
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.27WT.001
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,DUAL
MJD-OBS 60808.29748645
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME SGRA
RA 266.41631
DEC -29.00736
HIERARCH ESO INS SPEC RES LOW
HIERARCH ESO INS POLA MODE SPLIT
HIERARCH ESO ISS CONF NTEL 4
HIERARCH ESO ISS CONF STATION1 U1
HIERARCH ESO ISS CONF STATION2 U2
HIERARCH ESO ISS CONF STATION3 U3
HIERARCH ESO ISS CONF STATION4 U4
EXPTIME 389.0
HIERARCH ESO DET2 SEQ1 DIT 30.0
HIERARCH ESO DET2 NDIT 12
HIERARCH ESO ISS PBL12 START 56.393
HIERARCH ESO ISS PBL12 END 56.341
HIERARCH ESO ISS PBLA12 START 26.6
HIERARCH ESO ISS PBLA12 END 27.3
HIERARCH ESO ISS PBL13 START 102.151
HIERARCH ESO ISS PBL13 END 102.039
HIERARCH ESO ISS PBLA13 START 32.9
HIERARCH ESO ISS PBLA13 END 33.6
HIERARCH ESO ISS PBL14 START 130.024
HIERARCH ESO ISS PBL14 END 129.844
HIERARCH ESO ISS PBLA14 START 61.009
HIERARCH ESO ISS PBLA14 END 61.751
HIERARCH ESO ISS PBL23 START 46.526
HIERARCH ESO ISS PBL23 END 46.467
HIERARCH ESO ISS PBLA23 START 40.6
HIERARCH ESO ISS PBLA23 END 41.4
HIERARCH ESO ISS PBL24 START 89.391
HIERARCH ESO ISS PBL24 END 89.301
HIERARCH ESO ISS PBLA24 START 81.906
HIERARCH ESO ISS PBLA24 END 82.683
HIERARCH ESO ISS PBL34 START 62.468
HIERARCH ESO ISS PBL34 END 62.467
HIERARCH ESO ISS PBLA34 START 111.321
HIERARCH ESO ISS PBLA34 END 112.107
HIERARCH ESO ISS AMBI TAU0 START 0.010985
HIERARCH ESO ISS AMBI TAU0 END 0.010727
HIERARCH ESO ISS AMBI TEMP 16.48
HIERARCH ESO ISS AMBI FWHM START 0.31
HIERARCH ESO ISS AMBI FWHM END 0.3
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.0990
HIERARCH ESO FT ROBJ DELTA -290027.6530