Exposure
- ID
- GRAVI.2025-08-07T23:26:29.227_2
- Header ID
- GRAVI.2025-08-07T23:26:29.227
- Date updated
- 2025-08-07 23:40:35 UTC+0000
- Release date
- 2025-08-07 23:26:29 UTC+0000
- UTC Start
- 2025-08-07 23:26:29.227
- UTC End
- 2025-08-07 23:32:29.227
- MJD Start
- 60894.97672716
- MJD End
- 60894.980893826665
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0052175
- Ambient temperature (°C)
- 13.36
- Seeing (arcsec)
- 0.6000000000000001
Observation
- ID
- 69323
- Category
- calibrator
- Program ID
- 115.27WT.004
- 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
- 51518
- Name
- IRS16C
- RA
- 266.417075
- 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 | 56.3970 | 56.4190 | 11.8000 | 12.7000 |
| U1-U3 | 101.6550 | 101.7480 | 17.5000 | 18.5000 |
| U1-U4 | 123.9280 | 124.6000 | 44.0870 | 45.1830 |
| U2-U3 | 45.8920 | 45.9770 | 24.6000 | 25.6000 |
| U2-U4 | 82.0070 | 82.7890 | 65.6560 | 66.6780 |
| U3-U4 | 56.1670 | 56.8160 | 98.1090 | 98.7940 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 115.27WT.004 |
| HIERARCH ESO DPR CATG | CALIB |
| HIERARCH ESO DPR TYPE | STD,DUAL |
| MJD-OBS | 60894.97672716 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | R2 |
| RA | 266.416187 |
| DEC | -29.007 |
| 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 | 56.397 |
| HIERARCH ESO ISS PBL12 END | 56.419 |
| HIERARCH ESO ISS PBLA12 START | 11.8 |
| HIERARCH ESO ISS PBLA12 END | 12.7 |
| HIERARCH ESO ISS PBL13 START | 101.655 |
| HIERARCH ESO ISS PBL13 END | 101.748 |
| HIERARCH ESO ISS PBLA13 START | 17.5 |
| HIERARCH ESO ISS PBLA13 END | 18.5 |
| HIERARCH ESO ISS PBL14 START | 123.928 |
| HIERARCH ESO ISS PBL14 END | 124.6 |
| HIERARCH ESO ISS PBLA14 START | 44.087 |
| HIERARCH ESO ISS PBLA14 END | 45.183 |
| HIERARCH ESO ISS PBL23 START | 45.892 |
| HIERARCH ESO ISS PBL23 END | 45.977 |
| HIERARCH ESO ISS PBLA23 START | 24.6 |
| HIERARCH ESO ISS PBLA23 END | 25.6 |
| HIERARCH ESO ISS PBL24 START | 82.007 |
| HIERARCH ESO ISS PBL24 END | 82.789 |
| HIERARCH ESO ISS PBLA24 START | 65.656 |
| HIERARCH ESO ISS PBLA24 END | 66.678 |
| HIERARCH ESO ISS PBL34 START | 56.167 |
| HIERARCH ESO ISS PBL34 END | 56.816 |
| HIERARCH ESO ISS PBLA34 START | 98.109 |
| HIERARCH ESO ISS PBLA34 END | 98.794 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.004691 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.005744 |
| HIERARCH ESO ISS AMBI TEMP | 13.36 |
| HIERARCH ESO ISS AMBI FWHM START | 0.64 |
| HIERARCH ESO ISS AMBI FWHM END | 0.56 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0980 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6520 |