Exposure
ID
GRAVI.2025-07-08T00:17:23.044_1
Header ID
GRAVI.2025-07-08T00:17:23.044
Date updated
2025-07-08 00:35:43 UTC+0000
Release date
2026-07-08 00:35:43 UTC+0000
UTC Start
2025-07-08 00:17:23.044
UTC End
2025-07-08 00:23:23.044
MJD Start
60864.01207227
MJD End
60864.01623893667
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.0078
Ambient temperature (°C)
15.76
Seeing (arcsec)
0.58
Observation
ID
68368
Category
science
Program ID
115.27WT.003
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
50803
Name
SGRA
RA
266.416188
DEC
-29.00743
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 56.2310 56.2370 1.7000 2.6000
U1-U3 100.7750 100.8300 6.5000 7.5000
U1-U4 115.7020 116.4480 30.2110 31.6080
U2-U3 44.9960 45.0640 12.6000 13.7000
U2-U4 71.5520 72.5920 52.2760 53.6820
U3-U4 46.8120 47.8160 90.1780 90.9480
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.27WT.003
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,DUAL
MJD-OBS 60864.01207227
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME SGRA
RA 266.416188
DEC -29.00743
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 56.231
HIERARCH ESO ISS PBL12 END 56.237
HIERARCH ESO ISS PBLA12 START 1.7
HIERARCH ESO ISS PBLA12 END 2.6
HIERARCH ESO ISS PBL13 START 100.775
HIERARCH ESO ISS PBL13 END 100.83
HIERARCH ESO ISS PBLA13 START 6.5
HIERARCH ESO ISS PBLA13 END 7.5
HIERARCH ESO ISS PBL14 START 115.702
HIERARCH ESO ISS PBL14 END 116.448
HIERARCH ESO ISS PBLA14 START 30.211
HIERARCH ESO ISS PBLA14 END 31.608
HIERARCH ESO ISS PBL23 START 44.996
HIERARCH ESO ISS PBL23 END 45.064
HIERARCH ESO ISS PBLA23 START 12.6
HIERARCH ESO ISS PBLA23 END 13.7
HIERARCH ESO ISS PBL24 START 71.552
HIERARCH ESO ISS PBL24 END 72.592
HIERARCH ESO ISS PBLA24 START 52.276
HIERARCH ESO ISS PBLA24 END 53.682
HIERARCH ESO ISS PBL34 START 46.812
HIERARCH ESO ISS PBL34 END 47.816
HIERARCH ESO ISS PBLA34 START 90.178
HIERARCH ESO ISS PBLA34 END 90.948
HIERARCH ESO ISS AMBI TAU0 START 0.008387
HIERARCH ESO ISS AMBI TAU0 END 0.007213
HIERARCH ESO ISS AMBI TEMP 15.76
HIERARCH ESO ISS AMBI FWHM START 0.59
HIERARCH ESO ISS AMBI FWHM END 0.57
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.0990
HIERARCH ESO FT ROBJ DELTA -290027.6520