Exposure
ID
GRAVI.2025-07-07T05:06:58.252_2
Header ID
GRAVI.2025-07-07T05:06:58.252
Date updated
2025-07-07 05:20:44 UTC+0000
Release date
2026-07-07 05:20:44 UTC+0000
UTC Start
2025-07-07 05:06:58.252
UTC End
2025-07-07 05:12:58.252
MJD Start
60863.21317421
MJD End
60863.21734087667
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.0071094999999999995
Ambient temperature (°C)
14.02
Seeing (arcsec)
0.51
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 54.5990 54.3830 35.1000 35.6000
U1-U3 98.0110 97.5100 41.5000 41.9000
U1-U4 120.6980 119.5280 70.7730 71.3640
U2-U3 44.1590 43.8700 49.3000 49.8000
U2-U4 82.6770 81.8150 93.3930 94.2150
U3-U4 59.4880 59.0910 124.4730 125.5230
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 60863.21317421
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME SGRA
RA 266.416479
DEC -29.00748
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 54.599
HIERARCH ESO ISS PBL12 END 54.383
HIERARCH ESO ISS PBLA12 START 35.1
HIERARCH ESO ISS PBLA12 END 35.6
HIERARCH ESO ISS PBL13 START 98.011
HIERARCH ESO ISS PBL13 END 97.51
HIERARCH ESO ISS PBLA13 START 41.5
HIERARCH ESO ISS PBLA13 END 41.9
HIERARCH ESO ISS PBL14 START 120.698
HIERARCH ESO ISS PBL14 END 119.528
HIERARCH ESO ISS PBLA14 START 70.773
HIERARCH ESO ISS PBLA14 END 71.364
HIERARCH ESO ISS PBL23 START 44.159
HIERARCH ESO ISS PBL23 END 43.87
HIERARCH ESO ISS PBLA23 START 49.3
HIERARCH ESO ISS PBLA23 END 49.8
HIERARCH ESO ISS PBL24 START 82.677
HIERARCH ESO ISS PBL24 END 81.815
HIERARCH ESO ISS PBLA24 START 93.393
HIERARCH ESO ISS PBLA24 END 94.215
HIERARCH ESO ISS PBL34 START 59.488
HIERARCH ESO ISS PBL34 END 59.091
HIERARCH ESO ISS PBLA34 START 124.473
HIERARCH ESO ISS PBLA34 END 125.523
HIERARCH ESO ISS AMBI TAU0 START 0.008555
HIERARCH ESO ISS AMBI TAU0 END 0.005664
HIERARCH ESO ISS AMBI TEMP 14.02
HIERARCH ESO ISS AMBI FWHM START 0.49
HIERARCH ESO ISS AMBI FWHM END 0.53
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.0990
HIERARCH ESO FT ROBJ DELTA -290027.6520