Exposure
ID
GRAVI.2025-05-12T06:28:28.637_1
Header ID
GRAVI.2025-05-12T06:28:28.637
Date updated
2025-05-12 19:45:47 UTC+0000
Release date
2026-05-12 19:45:45 UTC+0000
UTC Start
2025-05-12 06:28:28.637
UTC End
2025-05-12 06:34:28.637
MJD Start
60807.26977589
MJD End
60807.27394255667
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.010010499999999999
Ambient temperature (°C)
17.71
Seeing (arcsec)
0.46499999999999997
Observation
ID
67252
Category
science
Program ID
115.27WT.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 / 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
49994
Name
SGRA
RA
266.41627
DEC
-29.00742
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 56.5580 56.5510 21.6000 22.4000
U1-U3 102.4280 102.4340 27.9000 28.7000
U1-U4 129.6910 129.9010 55.5880 56.4330
U2-U3 46.6150 46.6330 35.5000 36.3000
U2-U4 88.6110 88.8750 76.4810 77.3020
U3-U4 61.5800 61.8100 106.2730 106.9910
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.27WT.001
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,DUAL
MJD-OBS 60807.26977589
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME SGRA
RA 266.41627
DEC -29.00742
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 56.558
HIERARCH ESO ISS PBL12 END 56.551
HIERARCH ESO ISS PBLA12 START 21.6
HIERARCH ESO ISS PBLA12 END 22.4
HIERARCH ESO ISS PBL13 START 102.428
HIERARCH ESO ISS PBL13 END 102.434
HIERARCH ESO ISS PBLA13 START 27.9
HIERARCH ESO ISS PBLA13 END 28.7
HIERARCH ESO ISS PBL14 START 129.691
HIERARCH ESO ISS PBL14 END 129.901
HIERARCH ESO ISS PBLA14 START 55.588
HIERARCH ESO ISS PBLA14 END 56.433
HIERARCH ESO ISS PBL23 START 46.615
HIERARCH ESO ISS PBL23 END 46.633
HIERARCH ESO ISS PBLA23 START 35.5
HIERARCH ESO ISS PBLA23 END 36.3
HIERARCH ESO ISS PBL24 START 88.611
HIERARCH ESO ISS PBL24 END 88.875
HIERARCH ESO ISS PBLA24 START 76.481
HIERARCH ESO ISS PBLA24 END 77.302
HIERARCH ESO ISS PBL34 START 61.58
HIERARCH ESO ISS PBL34 END 61.81
HIERARCH ESO ISS PBLA34 START 106.273
HIERARCH ESO ISS PBLA34 END 106.991
HIERARCH ESO ISS AMBI TAU0 START 0.009356
HIERARCH ESO ISS AMBI TAU0 END 0.010665
HIERARCH ESO ISS AMBI TEMP 17.71
HIERARCH ESO ISS AMBI FWHM START 0.48
HIERARCH ESO ISS AMBI FWHM END 0.45
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.0990
HIERARCH ESO FT ROBJ DELTA -290027.6530