Exposure
- ID
- GRAVI.2025-08-07T03:52:50.310_2
- Header ID
- GRAVI.2025-08-07T03:52:50.310
- Date updated
- 2025-08-07 04:10:40 UTC+0000
- Release date
- 2026-08-07 04:10:40 UTC+0000
- UTC Start
- 2025-08-07 03:52:50.310
- UTC End
- 2025-08-07 03:58:50.310
- MJD Start
- 60894.1616934
- MJD End
- 60894.16586006666
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0044135
- Ambient temperature (°C)
- 13.03
- Seeing (arcsec)
- 0.915
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 | 52.6640 | 52.3410 | 38.2000 | 38.5000 |
| U1-U3 | 93.5490 | 92.8100 | 44.4000 | 44.8000 |
| U1-U4 | 110.3830 | 108.6990 | 75.0200 | 75.5750 |
| U2-U3 | 41.5950 | 41.1730 | 52.4000 | 52.7000 |
| U2-U4 | 75.1750 | 73.9750 | 99.8440 | 100.7980 |
| U3-U4 | 56.1730 | 55.6740 | 132.9220 | 134.1940 |
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 | 60894.1616934 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.417168 |
| DEC | -29.0072 |
| 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 | 52.664 |
| HIERARCH ESO ISS PBL12 END | 52.341 |
| HIERARCH ESO ISS PBLA12 START | 38.2 |
| HIERARCH ESO ISS PBLA12 END | 38.5 |
| HIERARCH ESO ISS PBL13 START | 93.549 |
| HIERARCH ESO ISS PBL13 END | 92.81 |
| HIERARCH ESO ISS PBLA13 START | 44.4 |
| HIERARCH ESO ISS PBLA13 END | 44.8 |
| HIERARCH ESO ISS PBL14 START | 110.383 |
| HIERARCH ESO ISS PBL14 END | 108.699 |
| HIERARCH ESO ISS PBLA14 START | 75.02 |
| HIERARCH ESO ISS PBLA14 END | 75.575 |
| HIERARCH ESO ISS PBL23 START | 41.595 |
| HIERARCH ESO ISS PBL23 END | 41.173 |
| HIERARCH ESO ISS PBLA23 START | 52.4 |
| HIERARCH ESO ISS PBLA23 END | 52.7 |
| HIERARCH ESO ISS PBL24 START | 75.175 |
| HIERARCH ESO ISS PBL24 END | 73.975 |
| HIERARCH ESO ISS PBLA24 START | 99.844 |
| HIERARCH ESO ISS PBLA24 END | 100.798 |
| HIERARCH ESO ISS PBL34 START | 56.173 |
| HIERARCH ESO ISS PBL34 END | 55.674 |
| HIERARCH ESO ISS PBLA34 START | 132.922 |
| HIERARCH ESO ISS PBLA34 END | 134.194 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.004135 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.004692 |
| HIERARCH ESO ISS AMBI TEMP | 13.03 |
| HIERARCH ESO ISS AMBI FWHM START | 0.87 |
| HIERARCH ESO ISS AMBI FWHM END | 0.96 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0980 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6520 |