Exposure
- ID
- GRAVI.2025-07-07T03:43:16.038_2
- Header ID
- GRAVI.2025-07-07T03:43:16.038
- Date updated
- 2025-07-07 04:00:47 UTC+0000
- Release date
- 2026-07-07 04:00:47 UTC+0000
- UTC Start
- 2025-07-07 03:43:16.038
- UTC End
- 2025-07-07 03:49:16.038
- MJD Start
- 60863.15504674
- MJD End
- 60863.15921340667
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.009698499999999999
- Ambient temperature (°C)
- 14.35
- Seeing (arcsec)
- 0.495
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 | 56.2980 | 56.2310 | 27.8000 | 28.4000 |
| U1-U3 | 101.9430 | 101.7940 | 34.1000 | 34.8000 |
| U1-U4 | 129.6710 | 129.3810 | 62.3020 | 63.0170 |
| U2-U3 | 46.4150 | 46.3330 | 41.9000 | 42.5000 |
| U2-U4 | 89.2000 | 89.0160 | 83.2670 | 84.0350 |
| U3-U4 | 62.4450 | 62.3880 | 112.7080 | 113.5100 |
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 | 60863.15504674 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.416434 |
| DEC | -29.00737 |
| 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 | 56.298 |
| HIERARCH ESO ISS PBL12 END | 56.231 |
| HIERARCH ESO ISS PBLA12 START | 27.8 |
| HIERARCH ESO ISS PBLA12 END | 28.4 |
| HIERARCH ESO ISS PBL13 START | 101.943 |
| HIERARCH ESO ISS PBL13 END | 101.794 |
| HIERARCH ESO ISS PBLA13 START | 34.1 |
| HIERARCH ESO ISS PBLA13 END | 34.8 |
| HIERARCH ESO ISS PBL14 START | 129.671 |
| HIERARCH ESO ISS PBL14 END | 129.381 |
| HIERARCH ESO ISS PBLA14 START | 62.302 |
| HIERARCH ESO ISS PBLA14 END | 63.017 |
| HIERARCH ESO ISS PBL23 START | 46.415 |
| HIERARCH ESO ISS PBL23 END | 46.333 |
| HIERARCH ESO ISS PBLA23 START | 41.9 |
| HIERARCH ESO ISS PBLA23 END | 42.5 |
| HIERARCH ESO ISS PBL24 START | 89.2 |
| HIERARCH ESO ISS PBL24 END | 89.016 |
| HIERARCH ESO ISS PBLA24 START | 83.267 |
| HIERARCH ESO ISS PBLA24 END | 84.035 |
| HIERARCH ESO ISS PBL34 START | 62.445 |
| HIERARCH ESO ISS PBL34 END | 62.388 |
| HIERARCH ESO ISS PBLA34 START | 112.708 |
| HIERARCH ESO ISS PBLA34 END | 113.51 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.00996 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.009437 |
| HIERARCH ESO ISS AMBI TEMP | 14.35 |
| HIERARCH ESO ISS AMBI FWHM START | 0.49 |
| 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 |