Exposure
- ID
- GRAVI.2025-08-07T00:41:43.824_2
- Header ID
- GRAVI.2025-08-07T00:41:43.824
- Date updated
- 2025-08-07 01:00:56 UTC+0000
- Release date
- 2026-08-07 01:00:56 UTC+0000
- UTC Start
- 2025-08-07 00:41:43.824
- UTC End
- 2025-08-07 00:47:43.824
- MJD Start
- 60894.02897944
- MJD End
- 60894.03314610667
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.004713500000000001
- Ambient temperature (°C)
- 13.89
- Seeing (arcsec)
- 1.0550000000000002
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 | 56.5590 | 56.5560 | 21.1000 | 21.8000 |
| U1-U3 | 102.4160 | 102.4310 | 27.3000 | 28.1000 |
| U1-U4 | 129.5050 | 129.7540 | 54.9610 | 55.8230 |
| U2-U3 | 46.5970 | 46.6210 | 34.9000 | 35.7000 |
| U2-U4 | 88.3860 | 88.6880 | 75.8740 | 76.7090 |
| U3-U4 | 61.3880 | 61.6460 | 105.7540 | 106.4710 |
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 | 60894.02897944 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.417195 |
| DEC | -29.0073 |
| 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 | 56.559 |
| HIERARCH ESO ISS PBL12 END | 56.556 |
| HIERARCH ESO ISS PBLA12 START | 21.1 |
| HIERARCH ESO ISS PBLA12 END | 21.8 |
| HIERARCH ESO ISS PBL13 START | 102.416 |
| HIERARCH ESO ISS PBL13 END | 102.431 |
| HIERARCH ESO ISS PBLA13 START | 27.3 |
| HIERARCH ESO ISS PBLA13 END | 28.1 |
| HIERARCH ESO ISS PBL14 START | 129.505 |
| HIERARCH ESO ISS PBL14 END | 129.754 |
| HIERARCH ESO ISS PBLA14 START | 54.961 |
| HIERARCH ESO ISS PBLA14 END | 55.823 |
| HIERARCH ESO ISS PBL23 START | 46.597 |
| HIERARCH ESO ISS PBL23 END | 46.621 |
| HIERARCH ESO ISS PBLA23 START | 34.9 |
| HIERARCH ESO ISS PBLA23 END | 35.7 |
| HIERARCH ESO ISS PBL24 START | 88.386 |
| HIERARCH ESO ISS PBL24 END | 88.688 |
| HIERARCH ESO ISS PBLA24 START | 75.874 |
| HIERARCH ESO ISS PBLA24 END | 76.709 |
| HIERARCH ESO ISS PBL34 START | 61.388 |
| HIERARCH ESO ISS PBL34 END | 61.646 |
| HIERARCH ESO ISS PBLA34 START | 105.754 |
| HIERARCH ESO ISS PBLA34 END | 106.471 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.005184 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.004243 |
| HIERARCH ESO ISS AMBI TEMP | 13.89 |
| HIERARCH ESO ISS AMBI FWHM START | 1.01 |
| HIERARCH ESO ISS AMBI FWHM END | 1.1 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0980 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6520 |