Exposure
- ID
- GRAVI.2025-07-08T04:44:35.724_2
- Header ID
- GRAVI.2025-07-08T04:44:35.724
- Date updated
- 2025-07-08 05:00:34 UTC+0000
- Release date
- 2026-07-08 05:00:34 UTC+0000
- UTC Start
- 2025-07-08 04:44:35.724
- UTC End
- 2025-07-08 04:50:35.724
- MJD Start
- 60864.19763569
- MJD End
- 60864.20180235666
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0118055
- Ambient temperature (°C)
- 15.66
- Seeing (arcsec)
- 0.255
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 | 55.1440 | 54.9650 | 33.7000 | 34.2000 |
| U1-U3 | 99.2780 | 98.8610 | 40.1000 | 40.6000 |
| U1-U4 | 123.6660 | 122.6900 | 69.0390 | 69.6540 |
| U2-U3 | 44.8910 | 44.6500 | 47.9000 | 48.4000 |
| U2-U4 | 84.8720 | 84.1500 | 91.0910 | 91.8900 |
| U3-U4 | 60.5120 | 60.1730 | 121.5940 | 122.5820 |
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 | 60864.19763569 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.416491 |
| DEC | -29.00739 |
| 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 | 55.144 |
| HIERARCH ESO ISS PBL12 END | 54.965 |
| HIERARCH ESO ISS PBLA12 START | 33.7 |
| HIERARCH ESO ISS PBLA12 END | 34.2 |
| HIERARCH ESO ISS PBL13 START | 99.278 |
| HIERARCH ESO ISS PBL13 END | 98.861 |
| HIERARCH ESO ISS PBLA13 START | 40.1 |
| HIERARCH ESO ISS PBLA13 END | 40.6 |
| HIERARCH ESO ISS PBL14 START | 123.666 |
| HIERARCH ESO ISS PBL14 END | 122.69 |
| HIERARCH ESO ISS PBLA14 START | 69.039 |
| HIERARCH ESO ISS PBLA14 END | 69.654 |
| HIERARCH ESO ISS PBL23 START | 44.891 |
| HIERARCH ESO ISS PBL23 END | 44.65 |
| HIERARCH ESO ISS PBLA23 START | 47.9 |
| HIERARCH ESO ISS PBLA23 END | 48.4 |
| HIERARCH ESO ISS PBL24 START | 84.872 |
| HIERARCH ESO ISS PBL24 END | 84.15 |
| HIERARCH ESO ISS PBLA24 START | 91.091 |
| HIERARCH ESO ISS PBLA24 END | 91.89 |
| HIERARCH ESO ISS PBL34 START | 60.512 |
| HIERARCH ESO ISS PBL34 END | 60.173 |
| HIERARCH ESO ISS PBLA34 START | 121.594 |
| HIERARCH ESO ISS PBLA34 END | 122.582 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.011968 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.011643 |
| HIERARCH ESO ISS AMBI TEMP | 15.66 |
| HIERARCH ESO ISS AMBI FWHM START | 0.25 |
| HIERARCH ESO ISS AMBI FWHM END | 0.26 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0990 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6520 |