Exposure
ID
GRAVI.2025-07-08T03:08:29.479_2
Header ID
GRAVI.2025-07-08T03:08:29.479
Date updated
2025-07-08 03:25:31 UTC+0000
Release date
2026-07-08 03:25:31 UTC+0000
UTC Start
2025-07-08 03:08:29.479
UTC End
2025-07-08 03:14:29.479
MJD Start
60864.13089675
MJD End
60864.13506341667
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.0133845
Ambient temperature (°C)
15.52
Seeing (arcsec)
0.44
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 56.5040 56.4750 24.4000 25.1000
U1-U3 102.3730 102.3200 30.7000 31.5000
U1-U4 130.2010 130.2040 58.6580 59.4440
U2-U3 46.6300 46.6080 38.4000 39.2000
U2-U4 89.3370 89.4090 79.5050 80.2980
U3-U4 62.2650 62.3660 108.9960 109.7470
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 60864.13089675
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME SGRA
RA 266.416185
DEC -29.00737
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 56.504
HIERARCH ESO ISS PBL12 END 56.475
HIERARCH ESO ISS PBLA12 START 24.4
HIERARCH ESO ISS PBLA12 END 25.1
HIERARCH ESO ISS PBL13 START 102.373
HIERARCH ESO ISS PBL13 END 102.32
HIERARCH ESO ISS PBLA13 START 30.7
HIERARCH ESO ISS PBLA13 END 31.5
HIERARCH ESO ISS PBL14 START 130.201
HIERARCH ESO ISS PBL14 END 130.204
HIERARCH ESO ISS PBLA14 START 58.658
HIERARCH ESO ISS PBLA14 END 59.444
HIERARCH ESO ISS PBL23 START 46.63
HIERARCH ESO ISS PBL23 END 46.608
HIERARCH ESO ISS PBLA23 START 38.4
HIERARCH ESO ISS PBLA23 END 39.2
HIERARCH ESO ISS PBL24 START 89.337
HIERARCH ESO ISS PBL24 END 89.409
HIERARCH ESO ISS PBLA24 START 79.505
HIERARCH ESO ISS PBLA24 END 80.298
HIERARCH ESO ISS PBL34 START 62.265
HIERARCH ESO ISS PBL34 END 62.366
HIERARCH ESO ISS PBLA34 START 108.996
HIERARCH ESO ISS PBLA34 END 109.747
HIERARCH ESO ISS AMBI TAU0 START 0.012643
HIERARCH ESO ISS AMBI TAU0 END 0.014126
HIERARCH ESO ISS AMBI TEMP 15.52
HIERARCH ESO ISS AMBI FWHM START 0.39
HIERARCH ESO ISS AMBI FWHM END 0.49
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.0990
HIERARCH ESO FT ROBJ DELTA -290027.6520