Exposure
- ID
- GRAVI.2025-07-08T03:38:56.557_2
- Header ID
- GRAVI.2025-07-08T03:38:56.557
- Date updated
- 2025-07-08 03:55:37 UTC+0000
- Release date
- 2026-07-08 03:55:37 UTC+0000
- UTC Start
- 2025-07-08 03:38:56.557
- UTC End
- 2025-07-08 03:44:56.557
- MJD Start
- 60864.15204348
- MJD End
- 60864.15621014666
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0139635
- Ambient temperature (°C)
- 15.88
- Seeing (arcsec)
- 0.315
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 | 56.3020 | 56.2350 | 27.7000 | 28.4000 |
| U1-U3 | 101.9530 | 101.8040 | 34.1000 | 34.7000 |
| U1-U4 | 129.6880 | 129.4010 | 62.2390 | 62.9610 |
| U2-U3 | 46.4200 | 46.3390 | 41.8000 | 42.5000 |
| U2-U4 | 89.2110 | 89.0300 | 83.2000 | 83.9760 |
| U3-U4 | 62.4480 | 62.3930 | 112.6390 | 113.4490 |
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 | 60864.15204348 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.416422 |
| DEC | -29.00731 |
| 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 | 56.302 |
| HIERARCH ESO ISS PBL12 END | 56.235 |
| HIERARCH ESO ISS PBLA12 START | 27.7 |
| HIERARCH ESO ISS PBLA12 END | 28.4 |
| HIERARCH ESO ISS PBL13 START | 101.953 |
| HIERARCH ESO ISS PBL13 END | 101.804 |
| HIERARCH ESO ISS PBLA13 START | 34.1 |
| HIERARCH ESO ISS PBLA13 END | 34.7 |
| HIERARCH ESO ISS PBL14 START | 129.688 |
| HIERARCH ESO ISS PBL14 END | 129.401 |
| HIERARCH ESO ISS PBLA14 START | 62.239 |
| HIERARCH ESO ISS PBLA14 END | 62.961 |
| HIERARCH ESO ISS PBL23 START | 46.42 |
| HIERARCH ESO ISS PBL23 END | 46.339 |
| HIERARCH ESO ISS PBLA23 START | 41.8 |
| HIERARCH ESO ISS PBLA23 END | 42.5 |
| HIERARCH ESO ISS PBL24 START | 89.211 |
| HIERARCH ESO ISS PBL24 END | 89.03 |
| HIERARCH ESO ISS PBLA24 START | 83.2 |
| HIERARCH ESO ISS PBLA24 END | 83.976 |
| HIERARCH ESO ISS PBL34 START | 62.448 |
| HIERARCH ESO ISS PBL34 END | 62.393 |
| HIERARCH ESO ISS PBLA34 START | 112.639 |
| HIERARCH ESO ISS PBLA34 END | 113.449 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.014021 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.013906 |
| HIERARCH ESO ISS AMBI TEMP | 15.88 |
| HIERARCH ESO ISS AMBI FWHM START | 0.34 |
| HIERARCH ESO ISS AMBI FWHM END | 0.29 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0990 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6520 |