Exposure
ID
GRAVI.2025-07-08T04:51:41.742_2
Header ID
GRAVI.2025-07-08T04:51:41.742
Date updated
2025-07-08 05:05:40 UTC+0000
Release date
2026-07-08 05:05:40 UTC+0000
UTC Start
2025-07-08 04:51:41.742
UTC End
2025-07-08 04:57:41.742
MJD Start
60864.20256646
MJD End
60864.206733126666
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.0109035
Ambient temperature (°C)
15.61
Seeing (arcsec)
0.275
Observation
ID
68254
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
50720
Name
IRS16C
RA
266.4170791666666
DEC
-29.00768111111111
Instrument
Interferometer
VLTI
Instrument
GRAVITY_FT
Instrument mode
LOW
Instrument sub-mode
DUAL
Stations
U1 U2 U3 U4
Projected baselines
Baseline Length start Length end Angle start Angle end
U1-U2 54.9460 54.7530 34.3000 34.8000
U1-U3 98.8190 98.3690 40.6000 41.1000
U1-U4 122.5910 121.5380 69.7140 70.3210
U2-U3 44.6250 44.3660 48.5000 49.0000
U2-U4 84.0760 83.2980 91.9690 92.7770
U3-U4 60.1390 59.7760 122.6800 123.6930
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 60864.20256646
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME SGRA
RA 266.416486
DEC -29.00739
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 54.946
HIERARCH ESO ISS PBL12 END 54.753
HIERARCH ESO ISS PBLA12 START 34.3
HIERARCH ESO ISS PBLA12 END 34.8
HIERARCH ESO ISS PBL13 START 98.819
HIERARCH ESO ISS PBL13 END 98.369
HIERARCH ESO ISS PBLA13 START 40.6
HIERARCH ESO ISS PBLA13 END 41.1
HIERARCH ESO ISS PBL14 START 122.591
HIERARCH ESO ISS PBL14 END 121.538
HIERARCH ESO ISS PBLA14 START 69.714
HIERARCH ESO ISS PBLA14 END 70.321
HIERARCH ESO ISS PBL23 START 44.625
HIERARCH ESO ISS PBL23 END 44.366
HIERARCH ESO ISS PBLA23 START 48.5
HIERARCH ESO ISS PBLA23 END 49.0
HIERARCH ESO ISS PBL24 START 84.076
HIERARCH ESO ISS PBL24 END 83.298
HIERARCH ESO ISS PBLA24 START 91.969
HIERARCH ESO ISS PBLA24 END 92.777
HIERARCH ESO ISS PBL34 START 60.139
HIERARCH ESO ISS PBL34 END 59.776
HIERARCH ESO ISS PBLA34 START 122.68
HIERARCH ESO ISS PBLA34 END 123.693
HIERARCH ESO ISS AMBI TAU0 START 0.011643
HIERARCH ESO ISS AMBI TAU0 END 0.010164
HIERARCH ESO ISS AMBI TEMP 15.61
HIERARCH ESO ISS AMBI FWHM START 0.26
HIERARCH ESO ISS AMBI FWHM END 0.29
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.0990
HIERARCH ESO FT ROBJ DELTA -290027.6520