Exposure
ID
GRAVI.2025-07-08T02:46:23.423_2
Header ID
GRAVI.2025-07-08T02:46:23.423
Date updated
2025-07-08 03:05:44 UTC+0000
Release date
2026-07-08 03:05:43 UTC+0000
UTC Start
2025-07-08 02:46:23.423
UTC End
2025-07-08 02:52:23.423
MJD Start
60864.11554888
MJD End
60864.119715546665
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.013018
Ambient temperature (°C)
15.52
Seeing (arcsec)
0.495
Observation
ID
68254
Category
science
Program ID
115.27WT.003
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
50720
Name
IRS16C
RA
266.4170791666666
DEC
-29.00768111111111
Instrument
Interferometer
VLTI
Instrument
GRAVITY_FT
Instrument mode
LOW
Instrument sub-mode
DUAL
Stations
U1 U2 U3 U4
Projected baselines
Baseline Length start Length end Angle start Angle end
U1-U2 56.5560 56.5480 21.9000 22.6000
U1-U3 102.4320 102.4330 28.1000 28.9000
U1-U4 129.7620 129.9560 55.8500 56.6920
U2-U3 46.6220 46.6360 35.7000 36.5000
U2-U4 88.6980 88.9470 76.7340 77.5560
U3-U4 61.6550 61.8760 106.4930 107.2160
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.27WT.003
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,DUAL
MJD-OBS 60864.11554888
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME SGRA
RA 266.416182
DEC -29.00741
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 56.556
HIERARCH ESO ISS PBL12 END 56.548
HIERARCH ESO ISS PBLA12 START 21.9
HIERARCH ESO ISS PBLA12 END 22.6
HIERARCH ESO ISS PBL13 START 102.432
HIERARCH ESO ISS PBL13 END 102.433
HIERARCH ESO ISS PBLA13 START 28.1
HIERARCH ESO ISS PBLA13 END 28.9
HIERARCH ESO ISS PBL14 START 129.762
HIERARCH ESO ISS PBL14 END 129.956
HIERARCH ESO ISS PBLA14 START 55.85
HIERARCH ESO ISS PBLA14 END 56.692
HIERARCH ESO ISS PBL23 START 46.622
HIERARCH ESO ISS PBL23 END 46.636
HIERARCH ESO ISS PBLA23 START 35.7
HIERARCH ESO ISS PBLA23 END 36.5
HIERARCH ESO ISS PBL24 START 88.698
HIERARCH ESO ISS PBL24 END 88.947
HIERARCH ESO ISS PBLA24 START 76.734
HIERARCH ESO ISS PBLA24 END 77.556
HIERARCH ESO ISS PBL34 START 61.655
HIERARCH ESO ISS PBL34 END 61.876
HIERARCH ESO ISS PBLA34 START 106.493
HIERARCH ESO ISS PBLA34 END 107.216
HIERARCH ESO ISS AMBI TAU0 START 0.006934
HIERARCH ESO ISS AMBI TAU0 END 0.019102
HIERARCH ESO ISS AMBI TEMP 15.52
HIERARCH ESO ISS AMBI FWHM START 0.6
HIERARCH ESO ISS AMBI FWHM END 0.39
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.0990
HIERARCH ESO FT ROBJ DELTA -290027.6520