Exposure
ID
GRAVI.2025-03-15T09:26:28.345_1
Header ID
GRAVI.2025-03-15T09:26:28.345
Date updated
2025-03-15 09:40:32 UTC+0000
Release date
2026-03-15 09:40:32 UTC+0000
UTC Start
2025-03-15 09:26:28.345
UTC End
2025-03-15 09:32:28.345
MJD Start
60749.39338362
MJD End
60749.39755028667
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.0036975000000000003
Ambient temperature (°C)
13.03
Seeing (arcsec)
1.0550000000000002
Observation
ID
65087
Category
science
Program ID
114.270V.001
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 / WIDMANN / MANG / DRESCHER / RIBEIRO / SADUN BORDONI / STRAUBMEIER / GARCIA / PAUMARD / BOURDAROT / STURM / LUTZ / LE BOUQUIN / CAO / KREIDBERG / HOENIG / FOSCHI / PERRIN / CARDOSO / AIMAR / URSO / ABD EL DAYEM / ROU
Target
ID
48462
Name
SGRA
RA
266.41738
DEC
-29.0077
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 56.4810 56.5000 15.3000 16.1000
U1-U3 102.0160 102.0960 21.3000 22.2000
U1-U4 126.4710 127.0240 48.3610 49.3610
U2-U3 46.2170 46.2890 28.6000 29.5000
U2-U4 84.9320 85.5570 69.6400 70.5740
U3-U4 58.5720 59.0790 100.8660 101.5500
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 114.270V.001
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,DUAL
MJD-OBS 60749.39338362
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME SGRA
RA 266.41738
DEC -29.0077
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 56.481
HIERARCH ESO ISS PBL12 END 56.5
HIERARCH ESO ISS PBLA12 START 15.3
HIERARCH ESO ISS PBLA12 END 16.1
HIERARCH ESO ISS PBL13 START 102.016
HIERARCH ESO ISS PBL13 END 102.096
HIERARCH ESO ISS PBLA13 START 21.3
HIERARCH ESO ISS PBLA13 END 22.2
HIERARCH ESO ISS PBL14 START 126.471
HIERARCH ESO ISS PBL14 END 127.024
HIERARCH ESO ISS PBLA14 START 48.361
HIERARCH ESO ISS PBLA14 END 49.361
HIERARCH ESO ISS PBL23 START 46.217
HIERARCH ESO ISS PBL23 END 46.289
HIERARCH ESO ISS PBLA23 START 28.6
HIERARCH ESO ISS PBLA23 END 29.5
HIERARCH ESO ISS PBL24 START 84.932
HIERARCH ESO ISS PBL24 END 85.557
HIERARCH ESO ISS PBLA24 START 69.64
HIERARCH ESO ISS PBLA24 END 70.574
HIERARCH ESO ISS PBL34 START 58.572
HIERARCH ESO ISS PBL34 END 59.079
HIERARCH ESO ISS PBLA34 START 100.866
HIERARCH ESO ISS PBLA34 END 101.55
HIERARCH ESO ISS AMBI TAU0 START 0.003813
HIERARCH ESO ISS AMBI TAU0 END 0.003582
HIERARCH ESO ISS AMBI TEMP 13.03
HIERARCH ESO ISS AMBI FWHM START 1.08
HIERARCH ESO ISS AMBI FWHM END 1.03
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.0990
HIERARCH ESO FT ROBJ DELTA -290027.6530