Exposure
ID
GRAVI.2025-07-07T06:02:31.393_1
Header ID
GRAVI.2025-07-07T06:02:31.393
Date updated
2025-07-07 06:20:40 UTC+0000
Release date
2026-07-07 06:20:39 UTC+0000
UTC Start
2025-07-07 06:02:31.393
UTC End
2025-07-07 06:08:31.393
MJD Start
60863.25175223
MJD End
60863.25591889666
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.0052485
Ambient temperature (°C)
13.79
Seeing (arcsec)
0.6799999999999999
Observation
ID
68274
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
50015
Name
SGRA
RA
266.416459
DEC
-29.00752
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
LOW-SPLIT
Instrument sub-mode
DUAL
Stations
U1 U2 U3 U4
Projected baselines
Baseline Length start Length end Angle start Angle end
U1-U2 52.2690 51.9300 38.6000 38.9000
U1-U3 92.6470 91.8730 44.8000 45.1000
U1-U4 108.3280 106.5730 75.6940 76.2420
U2-U3 41.0800 40.6380 52.8000 53.1000
U2-U4 73.7110 72.4690 101.0070 101.9870
U3-U4 55.5650 55.0610 134.4720 135.7780
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 60863.25175223
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME SGRA
RA 266.416459
DEC -29.00752
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 52.269
HIERARCH ESO ISS PBL12 END 51.93
HIERARCH ESO ISS PBLA12 START 38.6
HIERARCH ESO ISS PBLA12 END 38.9
HIERARCH ESO ISS PBL13 START 92.647
HIERARCH ESO ISS PBL13 END 91.873
HIERARCH ESO ISS PBLA13 START 44.8
HIERARCH ESO ISS PBLA13 END 45.1
HIERARCH ESO ISS PBL14 START 108.328
HIERARCH ESO ISS PBL14 END 106.573
HIERARCH ESO ISS PBLA14 START 75.694
HIERARCH ESO ISS PBLA14 END 76.242
HIERARCH ESO ISS PBL23 START 41.08
HIERARCH ESO ISS PBL23 END 40.638
HIERARCH ESO ISS PBLA23 START 52.8
HIERARCH ESO ISS PBLA23 END 53.1
HIERARCH ESO ISS PBL24 START 73.711
HIERARCH ESO ISS PBL24 END 72.469
HIERARCH ESO ISS PBLA24 START 101.007
HIERARCH ESO ISS PBLA24 END 101.987
HIERARCH ESO ISS PBL34 START 55.565
HIERARCH ESO ISS PBL34 END 55.061
HIERARCH ESO ISS PBLA34 START 134.472
HIERARCH ESO ISS PBLA34 END 135.778
HIERARCH ESO ISS AMBI TAU0 START 0.005379
HIERARCH ESO ISS AMBI TAU0 END 0.005118
HIERARCH ESO ISS AMBI TEMP 13.79
HIERARCH ESO ISS AMBI FWHM START 0.79
HIERARCH ESO ISS AMBI FWHM END 0.57
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.0990
HIERARCH ESO FT ROBJ DELTA -290027.6520