Exposure
ID
GRAVI.2025-05-13T04:24:46.413_1
Header ID
GRAVI.2025-05-13T04:24:46.413
Date updated
2025-05-13 06:51:34 UTC+0000
Release date
2026-05-13 06:51:33 UTC+0000
UTC Start
2025-05-13 04:24:46.413
UTC End
2025-05-13 04:30:46.413
MJD Start
60808.18387052
MJD End
60808.188037186665
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.0082155
Ambient temperature (°C)
16.8
Seeing (arcsec)
0.44
Observation
ID
67312
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
50053
Name
SGRA
RA
266.416228
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 56.2700 56.2850 5.6000 6.5000
U1-U3 101.0510 101.1310 10.8000 11.8000
U1-U4 118.9070 119.6720 35.9260 37.2040
U2-U3 45.3100 45.3920 17.4000 18.5000
U2-U4 75.8650 76.8420 57.9270 59.1570
U3-U4 50.8540 51.7290 93.3430 94.0610
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 60808.18387052
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME SGRA
RA 266.416228
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 56.27
HIERARCH ESO ISS PBL12 END 56.285
HIERARCH ESO ISS PBLA12 START 5.6
HIERARCH ESO ISS PBLA12 END 6.5
HIERARCH ESO ISS PBL13 START 101.051
HIERARCH ESO ISS PBL13 END 101.131
HIERARCH ESO ISS PBLA13 START 10.8
HIERARCH ESO ISS PBLA13 END 11.8
HIERARCH ESO ISS PBL14 START 118.907
HIERARCH ESO ISS PBL14 END 119.672
HIERARCH ESO ISS PBLA14 START 35.926
HIERARCH ESO ISS PBLA14 END 37.204
HIERARCH ESO ISS PBL23 START 45.31
HIERARCH ESO ISS PBL23 END 45.392
HIERARCH ESO ISS PBLA23 START 17.4
HIERARCH ESO ISS PBLA23 END 18.5
HIERARCH ESO ISS PBL24 START 75.865
HIERARCH ESO ISS PBL24 END 76.842
HIERARCH ESO ISS PBLA24 START 57.927
HIERARCH ESO ISS PBLA24 END 59.157
HIERARCH ESO ISS PBL34 START 50.854
HIERARCH ESO ISS PBL34 END 51.729
HIERARCH ESO ISS PBLA34 START 93.343
HIERARCH ESO ISS PBLA34 END 94.061
HIERARCH ESO ISS AMBI TAU0 START 0.008583
HIERARCH ESO ISS AMBI TAU0 END 0.007848
HIERARCH ESO ISS AMBI TEMP 16.8
HIERARCH ESO ISS AMBI FWHM START 0.45
HIERARCH ESO ISS AMBI FWHM END 0.43
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.0990
HIERARCH ESO FT ROBJ DELTA -290027.6530