Exposure
ID
GRAVI.2025-03-15T08:57:16.270_1
Header ID
GRAVI.2025-03-15T08:57:16.270
Date updated
2025-03-15 09:10:36 UTC+0000
Release date
2026-03-15 09:10:35 UTC+0000
UTC Start
2025-03-15 08:57:16.270
UTC End
2025-03-15 09:03:16.270
MJD Start
60749.37310498
MJD End
60749.37727164666
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.004186499999999999
Ambient temperature (°C)
13.39
Seeing (arcsec)
0.935
Observation
ID
65083
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
48458
Name
SGRA
RA
266.417301
DEC
-29.00773
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 56.3860 56.4080 11.3000 12.2000
U1-U3 101.6080 101.7020 17.0000 18.0000
U1-U4 123.5790 124.2670 43.5240 44.6390
U2-U3 45.8490 45.9350 24.1000 25.1000
U2-U4 81.5990 82.4030 65.1310 66.1710
U3-U4 55.8270 56.4970 97.7640 98.4530
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 60749.37310498
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME SGRA
RA 266.417301
DEC -29.00773
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 56.386
HIERARCH ESO ISS PBL12 END 56.408
HIERARCH ESO ISS PBLA12 START 11.3
HIERARCH ESO ISS PBLA12 END 12.2
HIERARCH ESO ISS PBL13 START 101.608
HIERARCH ESO ISS PBL13 END 101.702
HIERARCH ESO ISS PBLA13 START 17.0
HIERARCH ESO ISS PBLA13 END 18.0
HIERARCH ESO ISS PBL14 START 123.579
HIERARCH ESO ISS PBL14 END 124.267
HIERARCH ESO ISS PBLA14 START 43.524
HIERARCH ESO ISS PBLA14 END 44.639
HIERARCH ESO ISS PBL23 START 45.849
HIERARCH ESO ISS PBL23 END 45.935
HIERARCH ESO ISS PBLA23 START 24.1
HIERARCH ESO ISS PBLA23 END 25.1
HIERARCH ESO ISS PBL24 START 81.599
HIERARCH ESO ISS PBL24 END 82.403
HIERARCH ESO ISS PBLA24 START 65.131
HIERARCH ESO ISS PBLA24 END 66.171
HIERARCH ESO ISS PBL34 START 55.827
HIERARCH ESO ISS PBL34 END 56.497
HIERARCH ESO ISS PBLA34 START 97.764
HIERARCH ESO ISS PBLA34 END 98.453
HIERARCH ESO ISS AMBI TAU0 START 0.004304
HIERARCH ESO ISS AMBI TAU0 END 0.004069
HIERARCH ESO ISS AMBI TEMP 13.39
HIERARCH ESO ISS AMBI FWHM START 0.83
HIERARCH ESO ISS AMBI FWHM END 1.04
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.0990
HIERARCH ESO FT ROBJ DELTA -290027.6530