Exposure
ID
GRAVI.2025-07-07T04:06:52.099_2
Header ID
GRAVI.2025-07-07T04:06:52.099
Date updated
2025-07-07 04:20:41 UTC+0000
Release date
2026-07-07 04:20:41 UTC+0000
UTC Start
2025-07-07 04:06:52.099
UTC End
2025-07-07 04:12:52.099
MJD Start
60863.17143633
MJD End
60863.175602996664
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.00851
Ambient temperature (°C)
14.23
Seeing (arcsec)
0.405
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 56.0070 55.9040 30.1000 30.7000
U1-U3 101.2820 101.0460 36.5000 37.1000
U1-U4 128.2920 127.7620 64.8650 65.5370
U2-U3 46.0450 45.9100 44.2000 44.9000
U2-U4 88.2650 87.8860 86.0780 86.8450
U3-U4 62.0840 61.9150 115.7240 116.5820
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 60863.17143633
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME SGRA
RA 266.416499
DEC -29.00745
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 56.007
HIERARCH ESO ISS PBL12 END 55.904
HIERARCH ESO ISS PBLA12 START 30.1
HIERARCH ESO ISS PBLA12 END 30.7
HIERARCH ESO ISS PBL13 START 101.282
HIERARCH ESO ISS PBL13 END 101.046
HIERARCH ESO ISS PBLA13 START 36.5
HIERARCH ESO ISS PBLA13 END 37.1
HIERARCH ESO ISS PBL14 START 128.292
HIERARCH ESO ISS PBL14 END 127.762
HIERARCH ESO ISS PBLA14 START 64.865
HIERARCH ESO ISS PBLA14 END 65.537
HIERARCH ESO ISS PBL23 START 46.045
HIERARCH ESO ISS PBL23 END 45.91
HIERARCH ESO ISS PBLA23 START 44.2
HIERARCH ESO ISS PBLA23 END 44.9
HIERARCH ESO ISS PBL24 START 88.265
HIERARCH ESO ISS PBL24 END 87.886
HIERARCH ESO ISS PBLA24 START 86.078
HIERARCH ESO ISS PBLA24 END 86.845
HIERARCH ESO ISS PBL34 START 62.084
HIERARCH ESO ISS PBL34 END 61.915
HIERARCH ESO ISS PBLA34 START 115.724
HIERARCH ESO ISS PBLA34 END 116.582
HIERARCH ESO ISS AMBI TAU0 START 0.008249
HIERARCH ESO ISS AMBI TAU0 END 0.008771
HIERARCH ESO ISS AMBI TEMP 14.23
HIERARCH ESO ISS AMBI FWHM START 0.39
HIERARCH ESO ISS AMBI FWHM END 0.42
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.0990
HIERARCH ESO FT ROBJ DELTA -290027.6520