Exposure
ID
GRAVI.2025-07-07T04:44:01.193_2
Header ID
GRAVI.2025-07-07T04:44:01.193
Date updated
2025-07-07 05:00:35 UTC+0000
Release date
2026-07-07 05:00:35 UTC+0000
UTC Start
2025-07-07 04:44:01.193
UTC End
2025-07-07 04:50:01.193
MJD Start
60863.19723603
MJD End
60863.201402696664
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.007190499999999999
Ambient temperature (°C)
14.09
Seeing (arcsec)
0.43
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 55.2610 55.0920 33.4000 33.9000
U1-U3 99.5510 99.1560 39.7000 40.2000
U1-U4 124.3040 123.3810 68.6080 69.2250
U2-U3 45.0480 44.8210 47.6000 48.1000
U2-U4 85.3440 84.6610 90.5410 91.3310
U3-U4 60.7330 60.4120 120.9220 121.8900
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 60863.19723603
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME SGRA
RA 266.416513
DEC -29.00751
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 55.261
HIERARCH ESO ISS PBL12 END 55.092
HIERARCH ESO ISS PBLA12 START 33.4
HIERARCH ESO ISS PBLA12 END 33.9
HIERARCH ESO ISS PBL13 START 99.551
HIERARCH ESO ISS PBL13 END 99.156
HIERARCH ESO ISS PBLA13 START 39.7
HIERARCH ESO ISS PBLA13 END 40.2
HIERARCH ESO ISS PBL14 START 124.304
HIERARCH ESO ISS PBL14 END 123.381
HIERARCH ESO ISS PBLA14 START 68.608
HIERARCH ESO ISS PBLA14 END 69.225
HIERARCH ESO ISS PBL23 START 45.048
HIERARCH ESO ISS PBL23 END 44.821
HIERARCH ESO ISS PBLA23 START 47.6
HIERARCH ESO ISS PBLA23 END 48.1
HIERARCH ESO ISS PBL24 START 85.344
HIERARCH ESO ISS PBL24 END 84.661
HIERARCH ESO ISS PBLA24 START 90.541
HIERARCH ESO ISS PBLA24 END 91.331
HIERARCH ESO ISS PBL34 START 60.733
HIERARCH ESO ISS PBL34 END 60.412
HIERARCH ESO ISS PBLA34 START 120.922
HIERARCH ESO ISS PBLA34 END 121.89
HIERARCH ESO ISS AMBI TAU0 START 0.005192
HIERARCH ESO ISS AMBI TAU0 END 0.009189
HIERARCH ESO ISS AMBI TEMP 14.09
HIERARCH ESO ISS AMBI FWHM START 0.45
HIERARCH ESO ISS AMBI FWHM END 0.41
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.0990
HIERARCH ESO FT ROBJ DELTA -290027.6520