Exposure
- ID
- GRAVI.2025-08-07T04:06:59.346_2
- Header ID
- GRAVI.2025-08-07T04:06:59.346
- Date updated
- 2025-08-07 04:25:55 UTC+0000
- Release date
- 2026-08-07 04:25:54 UTC+0000
- UTC Start
- 2025-08-07 04:06:59.346
- UTC End
- 2025-08-07 04:12:59.346
- MJD Start
- 60894.17152021
- MJD End
- 60894.17568687667
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.004827
- Ambient temperature (°C)
- 13.11
- Seeing (arcsec)
- 0.845
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 | 51.9370 | 51.5830 | 38.9000 | 39.2000 |
| U1-U3 | 91.8890 | 91.0830 | 45.1000 | 45.4000 |
| U1-U4 | 106.6080 | 104.7890 | 76.2310 | 76.7770 |
| U2-U3 | 40.6470 | 40.1880 | 53.1000 | 53.4000 |
| U2-U4 | 72.4930 | 71.2150 | 101.9680 | 102.9750 |
| U3-U4 | 55.0710 | 54.5630 | 135.7520 | 137.0920 |
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 | 60894.17152021 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.417172 |
| DEC | -29.00721 |
| 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 | 51.937 |
| HIERARCH ESO ISS PBL12 END | 51.583 |
| HIERARCH ESO ISS PBLA12 START | 38.9 |
| HIERARCH ESO ISS PBLA12 END | 39.2 |
| HIERARCH ESO ISS PBL13 START | 91.889 |
| HIERARCH ESO ISS PBL13 END | 91.083 |
| HIERARCH ESO ISS PBLA13 START | 45.1 |
| HIERARCH ESO ISS PBLA13 END | 45.4 |
| HIERARCH ESO ISS PBL14 START | 106.608 |
| HIERARCH ESO ISS PBL14 END | 104.789 |
| HIERARCH ESO ISS PBLA14 START | 76.231 |
| HIERARCH ESO ISS PBLA14 END | 76.777 |
| HIERARCH ESO ISS PBL23 START | 40.647 |
| HIERARCH ESO ISS PBL23 END | 40.188 |
| HIERARCH ESO ISS PBLA23 START | 53.1 |
| HIERARCH ESO ISS PBLA23 END | 53.4 |
| HIERARCH ESO ISS PBL24 START | 72.493 |
| HIERARCH ESO ISS PBL24 END | 71.215 |
| HIERARCH ESO ISS PBLA24 START | 101.968 |
| HIERARCH ESO ISS PBLA24 END | 102.975 |
| HIERARCH ESO ISS PBL34 START | 55.071 |
| HIERARCH ESO ISS PBL34 END | 54.563 |
| HIERARCH ESO ISS PBLA34 START | 135.752 |
| HIERARCH ESO ISS PBLA34 END | 137.092 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.004864 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.00479 |
| HIERARCH ESO ISS AMBI TEMP | 13.11 |
| HIERARCH ESO ISS AMBI FWHM START | 0.79 |
| HIERARCH ESO ISS AMBI FWHM END | 0.9 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0980 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6520 |