Exposure
- ID
- GRAVI.2025-03-15T08:42:58.234_2
- Header ID
- GRAVI.2025-03-15T08:42:58.234
- Date updated
- 2025-03-15 09:00:36 UTC+0000
- Release date
- 2026-03-15 09:00:36 UTC+0000
- UTC Start
- 2025-03-15 08:42:58.234
- UTC End
- 2025-03-15 08:48:58.234
- MJD Start
- 60749.363174
- MJD End
- 60749.367340666664
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0042975
- Ambient temperature (°C)
- 13.37
- Seeing (arcsec)
- 0.7749999999999999
Observation
- ID
- 65080
- Category
- science
- Program ID
- 114.270V.001
- 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 / WIDMANN / MANG / DRESCHER / RIBEIRO / SADUN BORDONI / STRAUBMEIER / GARCIA / PAUMARD / BOURDAROT / STURM / LUTZ / LE BOUQUIN / CAO / KREIDBERG / HOENIG / FOSCHI / PERRIN / CARDOSO / AIMAR / URSO / ABD EL DAYEM / ROU
Target
- ID
- 45257
- Name
- IRS16C
- RA
- 266.4170791666666
- DEC
- -29.007681388888887
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 | 56.3400 | 56.3600 | 9.3000 | 10.2000 |
| U1-U3 | 101.4010 | 101.4940 | 14.9000 | 15.9000 |
| U1-U4 | 121.9880 | 122.7180 | 40.9670 | 42.1400 |
| U2-U3 | 45.6560 | 45.7440 | 21.8000 | 22.8000 |
| U2-U4 | 79.7030 | 80.5800 | 62.7330 | 63.8340 |
| U3-U4 | 54.2240 | 54.9690 | 96.2300 | 96.9260 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 114.270V.001 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 60749.363174 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.417307 |
| DEC | -29.00777 |
| 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 | 56.34 |
| HIERARCH ESO ISS PBL12 END | 56.36 |
| HIERARCH ESO ISS PBLA12 START | 9.3 |
| HIERARCH ESO ISS PBLA12 END | 10.2 |
| HIERARCH ESO ISS PBL13 START | 101.401 |
| HIERARCH ESO ISS PBL13 END | 101.494 |
| HIERARCH ESO ISS PBLA13 START | 14.9 |
| HIERARCH ESO ISS PBLA13 END | 15.9 |
| HIERARCH ESO ISS PBL14 START | 121.988 |
| HIERARCH ESO ISS PBL14 END | 122.718 |
| HIERARCH ESO ISS PBLA14 START | 40.967 |
| HIERARCH ESO ISS PBLA14 END | 42.14 |
| HIERARCH ESO ISS PBL23 START | 45.656 |
| HIERARCH ESO ISS PBL23 END | 45.744 |
| HIERARCH ESO ISS PBLA23 START | 21.8 |
| HIERARCH ESO ISS PBLA23 END | 22.8 |
| HIERARCH ESO ISS PBL24 START | 79.703 |
| HIERARCH ESO ISS PBL24 END | 80.58 |
| HIERARCH ESO ISS PBLA24 START | 62.733 |
| HIERARCH ESO ISS PBLA24 END | 63.834 |
| HIERARCH ESO ISS PBL34 START | 54.224 |
| HIERARCH ESO ISS PBL34 END | 54.969 |
| HIERARCH ESO ISS PBLA34 START | 96.23 |
| HIERARCH ESO ISS PBLA34 END | 96.926 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.004429 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.004166 |
| HIERARCH ESO ISS AMBI TEMP | 13.37 |
| HIERARCH ESO ISS AMBI FWHM START | 0.82 |
| HIERARCH ESO ISS AMBI FWHM END | 0.73 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0990 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6530 |