Exposure
ID
GRAVI.2025-05-13T09:53:38.251_1
Header ID
GRAVI.2025-05-13T09:53:38.251
Date updated
2025-05-13 10:05:57 UTC+0000
Release date
2026-05-13 10:05:57 UTC+0000
UTC Start
2025-05-13 09:53:38.251
UTC End
2025-05-13 09:59:38.251
MJD Start
60808.41224827
MJD End
60808.41641493666
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.0106525
Ambient temperature (°C)
16.41
Seeing (arcsec)
0.28
Observation
ID
67347
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
50088
Name
SGRA
RA
266.416489
DEC
-29.00754
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 51.4670 51.0920 39.3000 39.6000
U1-U3 90.8190 89.9670 45.5000 45.8000
U1-U4 104.1940 102.2800 76.9510 77.4960
U2-U3 40.0380 39.5540 53.5000 53.7000
U2-U4 70.7980 69.4660 103.3030 104.3570
U3-U4 54.4010 53.8870 137.5270 138.9210
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 60808.41224827
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME SGRA
RA 266.416489
DEC -29.00754
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 51.467
HIERARCH ESO ISS PBL12 END 51.092
HIERARCH ESO ISS PBLA12 START 39.3
HIERARCH ESO ISS PBLA12 END 39.6
HIERARCH ESO ISS PBL13 START 90.819
HIERARCH ESO ISS PBL13 END 89.967
HIERARCH ESO ISS PBLA13 START 45.5
HIERARCH ESO ISS PBLA13 END 45.8
HIERARCH ESO ISS PBL14 START 104.194
HIERARCH ESO ISS PBL14 END 102.28
HIERARCH ESO ISS PBLA14 START 76.951
HIERARCH ESO ISS PBLA14 END 77.496
HIERARCH ESO ISS PBL23 START 40.038
HIERARCH ESO ISS PBL23 END 39.554
HIERARCH ESO ISS PBLA23 START 53.5
HIERARCH ESO ISS PBLA23 END 53.7
HIERARCH ESO ISS PBL24 START 70.798
HIERARCH ESO ISS PBL24 END 69.466
HIERARCH ESO ISS PBLA24 START 103.303
HIERARCH ESO ISS PBLA24 END 104.357
HIERARCH ESO ISS PBL34 START 54.401
HIERARCH ESO ISS PBL34 END 53.887
HIERARCH ESO ISS PBLA34 START 137.527
HIERARCH ESO ISS PBLA34 END 138.921
HIERARCH ESO ISS AMBI TAU0 START 0.011206
HIERARCH ESO ISS AMBI TAU0 END 0.010099
HIERARCH ESO ISS AMBI TEMP 16.41
HIERARCH ESO ISS AMBI FWHM START 0.28
HIERARCH ESO ISS AMBI FWHM END 0.28
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.0990
HIERARCH ESO FT ROBJ DELTA -290027.6530