Exposure
- ID
- GRAVI.2025-07-08T05:07:23.782_2
- Header ID
- GRAVI.2025-07-08T05:07:23.782
- Date updated
- 2025-07-08 05:25:30 UTC+0000
- Release date
- 2026-07-08 05:25:30 UTC+0000
- UTC Start
- 2025-07-08 05:07:23.782
- UTC End
- 2025-07-08 05:13:23.782
- MJD Start
- 60864.2134697
- MJD End
- 60864.217636366666
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.010359
- Ambient temperature (°C)
- 15.57
- Seeing (arcsec)
- 0.28
Observation
- ID
- 68254
- Category
- science
- Program ID
- 115.27WT.003
- 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
- 50720
- Name
- IRS16C
- RA
- 266.4170791666666
- 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 | 54.4550 | 54.2280 | 35.5000 | 35.9000 |
| U1-U3 | 97.6770 | 97.1530 | 41.8000 | 42.2000 |
| U1-U4 | 119.9190 | 118.6960 | 71.1710 | 71.7600 |
| U2-U3 | 43.9660 | 43.6640 | 49.6000 | 50.1000 |
| U2-U4 | 82.1030 | 81.2040 | 93.9440 | 94.7780 |
| U3-U4 | 59.2240 | 58.8130 | 125.1750 | 126.2480 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 115.27WT.003 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 60864.2134697 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.416494 |
| DEC | -29.0074 |
| 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 | 54.455 |
| HIERARCH ESO ISS PBL12 END | 54.228 |
| HIERARCH ESO ISS PBLA12 START | 35.5 |
| HIERARCH ESO ISS PBLA12 END | 35.9 |
| HIERARCH ESO ISS PBL13 START | 97.677 |
| HIERARCH ESO ISS PBL13 END | 97.153 |
| HIERARCH ESO ISS PBLA13 START | 41.8 |
| HIERARCH ESO ISS PBLA13 END | 42.2 |
| HIERARCH ESO ISS PBL14 START | 119.919 |
| HIERARCH ESO ISS PBL14 END | 118.696 |
| HIERARCH ESO ISS PBLA14 START | 71.171 |
| HIERARCH ESO ISS PBLA14 END | 71.76 |
| HIERARCH ESO ISS PBL23 START | 43.966 |
| HIERARCH ESO ISS PBL23 END | 43.664 |
| HIERARCH ESO ISS PBLA23 START | 49.6 |
| HIERARCH ESO ISS PBLA23 END | 50.1 |
| HIERARCH ESO ISS PBL24 START | 82.103 |
| HIERARCH ESO ISS PBL24 END | 81.204 |
| HIERARCH ESO ISS PBLA24 START | 93.944 |
| HIERARCH ESO ISS PBLA24 END | 94.778 |
| HIERARCH ESO ISS PBL34 START | 59.224 |
| HIERARCH ESO ISS PBL34 END | 58.813 |
| HIERARCH ESO ISS PBLA34 START | 125.175 |
| HIERARCH ESO ISS PBLA34 END | 126.248 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.010159 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.010559 |
| HIERARCH ESO ISS AMBI TEMP | 15.57 |
| HIERARCH ESO ISS AMBI FWHM START | 0.28 |
| HIERARCH ESO ISS AMBI FWHM END | 0.28 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0990 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6520 |