Exposure
ID
GRAVI.2025-05-13T05:54:28.641_1
Header ID
GRAVI.2025-05-13T05:54:28.641
Date updated
2025-05-13 06:56:31 UTC+0000
Release date
2026-05-13 06:56:30 UTC+0000
UTC Start
2025-05-13 05:54:28.641
UTC End
2025-05-13 06:00:28.641
MJD Start
60808.24616483
MJD End
60808.25033149667
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.009065
Ambient temperature (°C)
16.91
Seeing (arcsec)
0.425
Observation
ID
67322
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
50063
Name
SGRA
RA
266.416186
DEC
-29.00741
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 56.5330 56.5450 17.9000 18.7000
U1-U3 102.2430 102.3020 24.0000 24.9000
U1-U4 128.0620 128.4960 51.3890 52.3270
U2-U3 46.4230 46.4780 31.4000 32.3000
U2-U4 86.7300 87.2210 72.4760 73.3610
U3-U4 60.0290 60.4270 102.9920 103.6880
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 60808.24616483
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME SGRA
RA 266.416186
DEC -29.00741
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 56.533
HIERARCH ESO ISS PBL12 END 56.545
HIERARCH ESO ISS PBLA12 START 17.9
HIERARCH ESO ISS PBLA12 END 18.7
HIERARCH ESO ISS PBL13 START 102.243
HIERARCH ESO ISS PBL13 END 102.302
HIERARCH ESO ISS PBLA13 START 24.0
HIERARCH ESO ISS PBLA13 END 24.9
HIERARCH ESO ISS PBL14 START 128.062
HIERARCH ESO ISS PBL14 END 128.496
HIERARCH ESO ISS PBLA14 START 51.389
HIERARCH ESO ISS PBLA14 END 52.327
HIERARCH ESO ISS PBL23 START 46.423
HIERARCH ESO ISS PBL23 END 46.478
HIERARCH ESO ISS PBLA23 START 31.4
HIERARCH ESO ISS PBLA23 END 32.3
HIERARCH ESO ISS PBL24 START 86.73
HIERARCH ESO ISS PBL24 END 87.221
HIERARCH ESO ISS PBLA24 START 72.476
HIERARCH ESO ISS PBLA24 END 73.361
HIERARCH ESO ISS PBL34 START 60.029
HIERARCH ESO ISS PBL34 END 60.427
HIERARCH ESO ISS PBLA34 START 102.992
HIERARCH ESO ISS PBLA34 END 103.688
HIERARCH ESO ISS AMBI TAU0 START 0.008709
HIERARCH ESO ISS AMBI TAU0 END 0.009421
HIERARCH ESO ISS AMBI TEMP 16.91
HIERARCH ESO ISS AMBI FWHM START 0.44
HIERARCH ESO ISS AMBI FWHM END 0.41
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.0990
HIERARCH ESO FT ROBJ DELTA -290027.6530