Exposure
ID
GRAVI.2025-07-07T03:35:58.020_2
Header ID
GRAVI.2025-07-07T03:35:58.020
Date updated
2025-07-07 03:55:38 UTC+0000
Release date
2026-07-07 03:55:38 UTC+0000
UTC Start
2025-07-07 03:35:58.020
UTC End
2025-07-07 03:41:58.020
MJD Start
60863.14997708
MJD End
60863.154143746666
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.008496
Ambient temperature (°C)
14.23
Seeing (arcsec)
0.46499999999999997
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 56.3630 56.3060 27.0000 27.7000
U1-U3 102.0860 101.9620 33.4000 34.0000
U1-U4 129.9230 129.7050 61.4760 62.2050
U2-U3 46.4920 46.4250 41.1000 41.8000
U2-U4 89.3430 89.2200 82.3930 83.1640
U3-U4 62.4710 62.4500 111.8120 112.6010
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 60863.14997708
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME SGRA
RA 266.41636
DEC -29.00734
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 56.363
HIERARCH ESO ISS PBL12 END 56.306
HIERARCH ESO ISS PBLA12 START 27.0
HIERARCH ESO ISS PBLA12 END 27.7
HIERARCH ESO ISS PBL13 START 102.086
HIERARCH ESO ISS PBL13 END 101.962
HIERARCH ESO ISS PBLA13 START 33.4
HIERARCH ESO ISS PBLA13 END 34.0
HIERARCH ESO ISS PBL14 START 129.923
HIERARCH ESO ISS PBL14 END 129.705
HIERARCH ESO ISS PBLA14 START 61.476
HIERARCH ESO ISS PBLA14 END 62.205
HIERARCH ESO ISS PBL23 START 46.492
HIERARCH ESO ISS PBL23 END 46.425
HIERARCH ESO ISS PBLA23 START 41.1
HIERARCH ESO ISS PBLA23 END 41.8
HIERARCH ESO ISS PBL24 START 89.343
HIERARCH ESO ISS PBL24 END 89.22
HIERARCH ESO ISS PBLA24 START 82.393
HIERARCH ESO ISS PBLA24 END 83.164
HIERARCH ESO ISS PBL34 START 62.471
HIERARCH ESO ISS PBL34 END 62.45
HIERARCH ESO ISS PBLA34 START 111.812
HIERARCH ESO ISS PBLA34 END 112.601
HIERARCH ESO ISS AMBI TAU0 START 0.007273
HIERARCH ESO ISS AMBI TAU0 END 0.009719
HIERARCH ESO ISS AMBI TEMP 14.23
HIERARCH ESO ISS AMBI FWHM START 0.49
HIERARCH ESO ISS AMBI FWHM END 0.44
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.0990
HIERARCH ESO FT ROBJ DELTA -290027.6520