Exposure
- ID
- GRAVI.2025-07-07T05:45:46.351_2
- Header ID
- GRAVI.2025-07-07T05:45:46.351
- Date updated
- 2025-07-07 06:00:34 UTC+0000
- Release date
- 2026-07-07 06:00:34 UTC+0000
- UTC Start
- 2025-07-07 05:45:46.351
- UTC End
- 2025-07-07 05:51:46.351
- MJD Start
- 60863.2401198
- MJD End
- 60863.24428646667
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.00615
- Ambient temperature (°C)
- 13.79
- Seeing (arcsec)
- 0.51
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 | 53.0840 | 52.7830 | 37.7000 | 38.1000 |
| U1-U3 | 94.5140 | 93.8240 | 44.0000 | 44.3000 |
| U1-U4 | 112.5920 | 111.0100 | 74.2490 | 74.8060 |
| U2-U3 | 42.1470 | 41.7520 | 51.9000 | 52.2000 |
| U2-U4 | 76.7620 | 75.6240 | 98.5670 | 99.4850 |
| U3-U4 | 56.8460 | 56.3610 | 131.2230 | 132.4440 |
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 | 60863.2401198 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.416466 |
| DEC | -29.00751 |
| 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 | 53.084 |
| HIERARCH ESO ISS PBL12 END | 52.783 |
| HIERARCH ESO ISS PBLA12 START | 37.7 |
| HIERARCH ESO ISS PBLA12 END | 38.1 |
| HIERARCH ESO ISS PBL13 START | 94.514 |
| HIERARCH ESO ISS PBL13 END | 93.824 |
| HIERARCH ESO ISS PBLA13 START | 44.0 |
| HIERARCH ESO ISS PBLA13 END | 44.3 |
| HIERARCH ESO ISS PBL14 START | 112.592 |
| HIERARCH ESO ISS PBL14 END | 111.01 |
| HIERARCH ESO ISS PBLA14 START | 74.249 |
| HIERARCH ESO ISS PBLA14 END | 74.806 |
| HIERARCH ESO ISS PBL23 START | 42.147 |
| HIERARCH ESO ISS PBL23 END | 41.752 |
| HIERARCH ESO ISS PBLA23 START | 51.9 |
| HIERARCH ESO ISS PBLA23 END | 52.2 |
| HIERARCH ESO ISS PBL24 START | 76.762 |
| HIERARCH ESO ISS PBL24 END | 75.624 |
| HIERARCH ESO ISS PBLA24 START | 98.567 |
| HIERARCH ESO ISS PBLA24 END | 99.485 |
| HIERARCH ESO ISS PBL34 START | 56.846 |
| HIERARCH ESO ISS PBL34 END | 56.361 |
| HIERARCH ESO ISS PBLA34 START | 131.223 |
| HIERARCH ESO ISS PBLA34 END | 132.444 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.006131 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.006169 |
| HIERARCH ESO ISS AMBI TEMP | 13.79 |
| HIERARCH ESO ISS AMBI FWHM START | 0.5 |
| HIERARCH ESO ISS AMBI FWHM END | 0.52 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0990 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6520 |