Exposure
ID
GRAVI.2025-07-07T05:16:19.275_2
Header ID
GRAVI.2025-07-07T05:16:19.275
Date updated
2025-07-07 05:30:40 UTC+0000
Release date
2026-07-07 05:30:40 UTC+0000
UTC Start
2025-07-07 05:16:19.275
UTC End
2025-07-07 05:22:19.275
MJD Start
60863.21966754
MJD End
60863.22383420666
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.006624
Ambient temperature (°C)
13.82
Seeing (arcsec)
0.485
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 54.2800 54.0440 35.8000 36.3000
U1-U3 97.2710 96.7260 42.1000 42.6000
U1-U4 118.9720 117.7020 71.6310 72.2130
U2-U3 43.7320 43.4180 50.0000 50.4000
U2-U4 81.4060 80.4750 94.5940 95.4340
U3-U4 58.9040 58.4820 126.0100 127.0980
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 60863.21966754
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME SGRA
RA 266.416477
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 54.28
HIERARCH ESO ISS PBL12 END 54.044
HIERARCH ESO ISS PBLA12 START 35.8
HIERARCH ESO ISS PBLA12 END 36.3
HIERARCH ESO ISS PBL13 START 97.271
HIERARCH ESO ISS PBL13 END 96.726
HIERARCH ESO ISS PBLA13 START 42.1
HIERARCH ESO ISS PBLA13 END 42.6
HIERARCH ESO ISS PBL14 START 118.972
HIERARCH ESO ISS PBL14 END 117.702
HIERARCH ESO ISS PBLA14 START 71.631
HIERARCH ESO ISS PBLA14 END 72.213
HIERARCH ESO ISS PBL23 START 43.732
HIERARCH ESO ISS PBL23 END 43.418
HIERARCH ESO ISS PBLA23 START 50.0
HIERARCH ESO ISS PBLA23 END 50.4
HIERARCH ESO ISS PBL24 START 81.406
HIERARCH ESO ISS PBL24 END 80.475
HIERARCH ESO ISS PBLA24 START 94.594
HIERARCH ESO ISS PBLA24 END 95.434
HIERARCH ESO ISS PBL34 START 58.904
HIERARCH ESO ISS PBL34 END 58.482
HIERARCH ESO ISS PBLA34 START 126.01
HIERARCH ESO ISS PBLA34 END 127.098
HIERARCH ESO ISS AMBI TAU0 START 0.00644
HIERARCH ESO ISS AMBI TAU0 END 0.006808
HIERARCH ESO ISS AMBI TEMP 13.82
HIERARCH ESO ISS AMBI FWHM START 0.49
HIERARCH ESO ISS AMBI FWHM END 0.48
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.0990
HIERARCH ESO FT ROBJ DELTA -290027.6520