Exposure
ID
GRAVI.2025-07-08T04:08:05.630_2
Header ID
GRAVI.2025-07-08T04:08:05.630
Date updated
2025-07-08 04:25:34 UTC+0000
Release date
2026-07-08 04:25:33 UTC+0000
UTC Start
2025-07-08 04:08:05.630
UTC End
2025-07-08 04:14:05.630
MJD Start
60864.17228739
MJD End
60864.176454056666
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.0106
Ambient temperature (°C)
15.86
Seeing (arcsec)
0.26
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 55.9250 55.8140 30.6000 31.2000
U1-U3 101.0940 100.8370 37.0000 37.5000
U1-U4 127.8720 127.2890 65.4010 66.0660
U2-U3 45.9380 45.7900 44.7000 45.3000
U2-U4 87.9650 87.5430 86.6890 87.4570
U3-U4 61.9510 61.7600 116.4060 117.2790
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 60864.17228739
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME SGRA
RA 266.416474
DEC -29.00735
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 55.925
HIERARCH ESO ISS PBL12 END 55.814
HIERARCH ESO ISS PBLA12 START 30.6
HIERARCH ESO ISS PBLA12 END 31.2
HIERARCH ESO ISS PBL13 START 101.094
HIERARCH ESO ISS PBL13 END 100.837
HIERARCH ESO ISS PBLA13 START 37.0
HIERARCH ESO ISS PBLA13 END 37.5
HIERARCH ESO ISS PBL14 START 127.872
HIERARCH ESO ISS PBL14 END 127.289
HIERARCH ESO ISS PBLA14 START 65.401
HIERARCH ESO ISS PBLA14 END 66.066
HIERARCH ESO ISS PBL23 START 45.938
HIERARCH ESO ISS PBL23 END 45.79
HIERARCH ESO ISS PBLA23 START 44.7
HIERARCH ESO ISS PBLA23 END 45.3
HIERARCH ESO ISS PBL24 START 87.965
HIERARCH ESO ISS PBL24 END 87.543
HIERARCH ESO ISS PBLA24 START 86.689
HIERARCH ESO ISS PBLA24 END 87.457
HIERARCH ESO ISS PBL34 START 61.951
HIERARCH ESO ISS PBL34 END 61.76
HIERARCH ESO ISS PBLA34 START 116.406
HIERARCH ESO ISS PBLA34 END 117.279
HIERARCH ESO ISS AMBI TAU0 START 0.01206
HIERARCH ESO ISS AMBI TAU0 END 0.00914
HIERARCH ESO ISS AMBI TEMP 15.86
HIERARCH ESO ISS AMBI FWHM START 0.25
HIERARCH ESO ISS AMBI FWHM END 0.27
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.0990
HIERARCH ESO FT ROBJ DELTA -290027.6520