Exposure
ID
GRAVI.2025-07-08T02:53:56.442_2
Header ID
GRAVI.2025-07-08T02:53:56.442
Date updated
2025-07-08 03:10:44 UTC+0000
Release date
2026-07-08 03:10:44 UTC+0000
UTC Start
2025-07-08 02:53:56.442
UTC End
2025-07-08 02:59:56.442
MJD Start
60864.12079215
MJD End
60864.12495881667
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.017236500000000002
Ambient temperature (°C)
15.46
Seeing (arcsec)
0.41500000000000004
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 56.5460 56.5310 22.8000 23.5000
U1-U3 102.4320 102.4160 29.0000 29.8000
U1-U4 129.9840 130.1150 56.8340 57.6560
U2-U3 46.6380 46.6410 36.7000 37.4000
U2-U4 88.9840 89.1740 77.6950 78.5060
U3-U4 61.9100 62.0890 107.3400 108.0710
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 60864.12079215
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME SGRA
RA 266.416182
DEC -29.0074
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 56.546
HIERARCH ESO ISS PBL12 END 56.531
HIERARCH ESO ISS PBLA12 START 22.8
HIERARCH ESO ISS PBLA12 END 23.5
HIERARCH ESO ISS PBL13 START 102.432
HIERARCH ESO ISS PBL13 END 102.416
HIERARCH ESO ISS PBLA13 START 29.0
HIERARCH ESO ISS PBLA13 END 29.8
HIERARCH ESO ISS PBL14 START 129.984
HIERARCH ESO ISS PBL14 END 130.115
HIERARCH ESO ISS PBLA14 START 56.834
HIERARCH ESO ISS PBLA14 END 57.656
HIERARCH ESO ISS PBL23 START 46.638
HIERARCH ESO ISS PBL23 END 46.641
HIERARCH ESO ISS PBLA23 START 36.7
HIERARCH ESO ISS PBLA23 END 37.4
HIERARCH ESO ISS PBL24 START 88.984
HIERARCH ESO ISS PBL24 END 89.174
HIERARCH ESO ISS PBLA24 START 77.695
HIERARCH ESO ISS PBLA24 END 78.506
HIERARCH ESO ISS PBL34 START 61.91
HIERARCH ESO ISS PBL34 END 62.089
HIERARCH ESO ISS PBLA34 START 107.34
HIERARCH ESO ISS PBLA34 END 108.071
HIERARCH ESO ISS AMBI TAU0 START 0.017748
HIERARCH ESO ISS AMBI TAU0 END 0.016725
HIERARCH ESO ISS AMBI TEMP 15.46
HIERARCH ESO ISS AMBI FWHM START 0.38
HIERARCH ESO ISS AMBI FWHM END 0.45
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.0990
HIERARCH ESO FT ROBJ DELTA -290027.6520