Exposure
ID
GRAVI.2025-07-07T05:38:31.332_2
Header ID
GRAVI.2025-07-07T05:38:31.332
Date updated
2025-07-07 05:55:41 UTC+0000
Release date
2026-07-07 05:55:41 UTC+0000
UTC Start
2025-07-07 05:38:31.332
UTC End
2025-07-07 05:44:31.332
MJD Start
60863.23508486
MJD End
60863.23925152667
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.006198
Ambient temperature (°C)
13.84
Seeing (arcsec)
0.48
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 53.4070 53.1220 37.3000 37.6000
U1-U3 95.2560 94.6010 43.5000 43.9000
U1-U4 114.2980 112.7920 73.6130 74.1760
U2-U3 42.5730 42.1970 51.4000 51.8000
U2-U4 77.9950 76.9060 97.5550 98.4500
U3-U4 57.3800 56.9080 129.8810 131.0670
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 60863.23508486
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME SGRA
RA 266.416475
DEC -29.0075
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 53.407
HIERARCH ESO ISS PBL12 END 53.122
HIERARCH ESO ISS PBLA12 START 37.3
HIERARCH ESO ISS PBLA12 END 37.6
HIERARCH ESO ISS PBL13 START 95.256
HIERARCH ESO ISS PBL13 END 94.601
HIERARCH ESO ISS PBLA13 START 43.5
HIERARCH ESO ISS PBLA13 END 43.9
HIERARCH ESO ISS PBL14 START 114.298
HIERARCH ESO ISS PBL14 END 112.792
HIERARCH ESO ISS PBLA14 START 73.613
HIERARCH ESO ISS PBLA14 END 74.176
HIERARCH ESO ISS PBL23 START 42.573
HIERARCH ESO ISS PBL23 END 42.197
HIERARCH ESO ISS PBLA23 START 51.4
HIERARCH ESO ISS PBLA23 END 51.8
HIERARCH ESO ISS PBL24 START 77.995
HIERARCH ESO ISS PBL24 END 76.906
HIERARCH ESO ISS PBLA24 START 97.555
HIERARCH ESO ISS PBLA24 END 98.45
HIERARCH ESO ISS PBL34 START 57.38
HIERARCH ESO ISS PBL34 END 56.908
HIERARCH ESO ISS PBLA34 START 129.881
HIERARCH ESO ISS PBLA34 END 131.067
HIERARCH ESO ISS AMBI TAU0 START 0.007261
HIERARCH ESO ISS AMBI TAU0 END 0.005135
HIERARCH ESO ISS AMBI TEMP 13.84
HIERARCH ESO ISS AMBI FWHM START 0.46
HIERARCH ESO ISS AMBI FWHM END 0.5
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.0990
HIERARCH ESO FT ROBJ DELTA -290027.6520