Exposure
- ID
- GRAVI.2025-07-07T05:38:31.332_2
- Header ID
- GRAVI.2025-07-07T05:38:31.332
- Date updated
- 2025-07-07 05:55:41 UTC+0000
- Release date
- 2026-07-07 05:55:41 UTC+0000
- UTC Start
- 2025-07-07 05:38:31.332
- UTC End
- 2025-07-07 05:44:31.332
- MJD Start
- 60863.23508486
- MJD End
- 60863.23925152667
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.006198
- Ambient temperature (°C)
- 13.84
- Seeing (arcsec)
- 0.48
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 | 53.4070 | 53.1220 | 37.3000 | 37.6000 |
| U1-U3 | 95.2560 | 94.6010 | 43.5000 | 43.9000 |
| U1-U4 | 114.2980 | 112.7920 | 73.6130 | 74.1760 |
| U2-U3 | 42.5730 | 42.1970 | 51.4000 | 51.8000 |
| U2-U4 | 77.9950 | 76.9060 | 97.5550 | 98.4500 |
| U3-U4 | 57.3800 | 56.9080 | 129.8810 | 131.0670 |
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 | 60863.23508486 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.416475 |
| DEC | -29.0075 |
| 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 | 53.407 |
| HIERARCH ESO ISS PBL12 END | 53.122 |
| HIERARCH ESO ISS PBLA12 START | 37.3 |
| HIERARCH ESO ISS PBLA12 END | 37.6 |
| HIERARCH ESO ISS PBL13 START | 95.256 |
| HIERARCH ESO ISS PBL13 END | 94.601 |
| HIERARCH ESO ISS PBLA13 START | 43.5 |
| HIERARCH ESO ISS PBLA13 END | 43.9 |
| HIERARCH ESO ISS PBL14 START | 114.298 |
| HIERARCH ESO ISS PBL14 END | 112.792 |
| HIERARCH ESO ISS PBLA14 START | 73.613 |
| HIERARCH ESO ISS PBLA14 END | 74.176 |
| HIERARCH ESO ISS PBL23 START | 42.573 |
| HIERARCH ESO ISS PBL23 END | 42.197 |
| HIERARCH ESO ISS PBLA23 START | 51.4 |
| HIERARCH ESO ISS PBLA23 END | 51.8 |
| HIERARCH ESO ISS PBL24 START | 77.995 |
| HIERARCH ESO ISS PBL24 END | 76.906 |
| HIERARCH ESO ISS PBLA24 START | 97.555 |
| HIERARCH ESO ISS PBLA24 END | 98.45 |
| HIERARCH ESO ISS PBL34 START | 57.38 |
| HIERARCH ESO ISS PBL34 END | 56.908 |
| HIERARCH ESO ISS PBLA34 START | 129.881 |
| HIERARCH ESO ISS PBLA34 END | 131.067 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.007261 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.005135 |
| HIERARCH ESO ISS AMBI TEMP | 13.84 |
| HIERARCH ESO ISS AMBI FWHM START | 0.46 |
| HIERARCH ESO ISS AMBI FWHM END | 0.5 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0990 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6520 |