Exposure
- ID
- GRAVI.2025-08-10T01:10:29.938_2
- Header ID
- GRAVI.2025-08-10T01:10:29.938
- Date updated
- 2025-08-10 01:25:36 UTC+0000
- Release date
- 2026-08-10 01:25:36 UTC+0000
- UTC Start
- 2025-08-10 01:10:29.938
- UTC End
- 2025-08-10 01:16:29.938
- MJD Start
- 60897.04895762
- MJD End
- 60897.053124286664
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.003358
- Ambient temperature (°C)
- 12.55
- Seeing (arcsec)
- 0.865
Observation
- ID
- 69325
- Category
- science
- 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 | 56.4460 | 56.4040 | 25.7000 | 26.4000 |
| U1-U3 | 102.2620 | 102.1740 | 32.1000 | 32.8000 |
| U1-U4 | 130.1620 | 130.0570 | 60.0910 | 60.8520 |
| U2-U3 | 46.5810 | 46.5380 | 39.8000 | 40.5000 |
| U2-U4 | 89.4290 | 89.4040 | 80.9580 | 81.7420 |
| U3-U4 | 62.4240 | 62.4640 | 110.3860 | 111.1580 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 115.27WT.004 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 60897.04895762 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.416927 |
| DEC | -29.00625 |
| 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 | 56.446 |
| HIERARCH ESO ISS PBL12 END | 56.404 |
| HIERARCH ESO ISS PBLA12 START | 25.7 |
| HIERARCH ESO ISS PBLA12 END | 26.4 |
| HIERARCH ESO ISS PBL13 START | 102.262 |
| HIERARCH ESO ISS PBL13 END | 102.174 |
| HIERARCH ESO ISS PBLA13 START | 32.1 |
| HIERARCH ESO ISS PBLA13 END | 32.8 |
| HIERARCH ESO ISS PBL14 START | 130.162 |
| HIERARCH ESO ISS PBL14 END | 130.057 |
| HIERARCH ESO ISS PBLA14 START | 60.091 |
| HIERARCH ESO ISS PBLA14 END | 60.852 |
| HIERARCH ESO ISS PBL23 START | 46.581 |
| HIERARCH ESO ISS PBL23 END | 46.538 |
| HIERARCH ESO ISS PBLA23 START | 39.8 |
| HIERARCH ESO ISS PBLA23 END | 40.5 |
| HIERARCH ESO ISS PBL24 START | 89.429 |
| HIERARCH ESO ISS PBL24 END | 89.404 |
| HIERARCH ESO ISS PBLA24 START | 80.958 |
| HIERARCH ESO ISS PBLA24 END | 81.742 |
| HIERARCH ESO ISS PBL34 START | 62.424 |
| HIERARCH ESO ISS PBL34 END | 62.464 |
| HIERARCH ESO ISS PBLA34 START | 110.386 |
| HIERARCH ESO ISS PBLA34 END | 111.158 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.003561 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.003155 |
| HIERARCH ESO ISS AMBI TEMP | 12.55 |
| HIERARCH ESO ISS AMBI FWHM START | 0.78 |
| HIERARCH ESO ISS AMBI FWHM END | 0.95 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0980 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6520 |