Exposure
ID
GRAVI.2024-06-26T05:23:59.098_1
Header ID
GRAVI.2024-06-26T05:23:59.098
Date updated
2024-06-26 05:40:34 UTC+0000
Release date
2025-06-26 05:40:34 UTC+0000
UTC Start
2024-06-26 05:23:59.098
UTC End
2024-06-26 05:29:59.098
MJD Start
60487.22498956
MJD End
60487.2291562267
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.002354
Ambient temperature (°C)
11.27
Seeing (arcsec)
0.57
Observation
ID
59776
Category
science
Program ID
113.268P.003
Program Title
THE GALACTIC CENTER WITH GRAVITY - MEASURING THE SPIN OF SGR A* BY MEANS OF DEEP GRAVITY INTERFEROMETRY
Program Type
GTO
PI / COI
EISENHAUER / GILLESSEN / GENZEL / OTT / WIDMANN / DRESCHER / RIBEIRO / SADUN BORDONI / STRAUBMEIER / BRANDNER / PERRIN / ROUSSELET-PERRAUT / GARCIA / MANG / PAUMARD / ECKART / VINCENT / BOURDAROT / LUTZ / STURM / CAO / HORROBIN / LE BOUQUIN / KREIDBERG /
Target
ID
44337
Name
SGRA
RA
266.417093
DEC
-29.00678
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 55.3190 55.1530 33.2000 33.7000
U1-U3 99.6850 99.2990 39.6000 40.1000
U1-U4 124.6170 123.7150 68.3840 69.0080
U2-U3 45.1260 44.9030 47.4000 47.9000
U2-U4 85.5760 84.9080 90.2600 91.0510
U3-U4 60.8420 60.5280 120.5810 121.5450
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 113.268P.003
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,DUAL
MJD-OBS 60487.22498956
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME SGRA
RA 266.417093
DEC -29.00678
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 55.319
HIERARCH ESO ISS PBL12 END 55.153
HIERARCH ESO ISS PBLA12 START 33.2
HIERARCH ESO ISS PBLA12 END 33.7
HIERARCH ESO ISS PBL13 START 99.685
HIERARCH ESO ISS PBL13 END 99.299
HIERARCH ESO ISS PBLA13 START 39.6
HIERARCH ESO ISS PBLA13 END 40.1
HIERARCH ESO ISS PBL14 START 124.617
HIERARCH ESO ISS PBL14 END 123.715
HIERARCH ESO ISS PBLA14 START 68.384
HIERARCH ESO ISS PBLA14 END 69.008
HIERARCH ESO ISS PBL23 START 45.126
HIERARCH ESO ISS PBL23 END 44.903
HIERARCH ESO ISS PBLA23 START 47.4
HIERARCH ESO ISS PBLA23 END 47.9
HIERARCH ESO ISS PBL24 START 85.576
HIERARCH ESO ISS PBL24 END 84.908
HIERARCH ESO ISS PBLA24 START 90.26
HIERARCH ESO ISS PBLA24 END 91.051
HIERARCH ESO ISS PBL34 START 60.842
HIERARCH ESO ISS PBL34 END 60.528
HIERARCH ESO ISS PBLA34 START 120.581
HIERARCH ESO ISS PBLA34 END 121.545
HIERARCH ESO ISS AMBI TAU0 START 0.00283
HIERARCH ESO ISS AMBI TAU0 END 0.001878
HIERARCH ESO ISS AMBI TEMP 11.27
HIERARCH ESO ISS AMBI FWHM START 0.55
HIERARCH ESO ISS AMBI FWHM END 0.59
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.1000
HIERARCH ESO FT ROBJ DELTA -290027.6541