Exposure
- ID
- GRAVI.2025-07-12T05:07:38.747_2
- Header ID
- GRAVI.2025-07-12T05:07:38.747
- Date updated
- 2025-07-12 05:20:47 UTC+0000
- Release date
- 2026-07-12 05:20:46 UTC+0000
- UTC Start
- 2025-07-12 05:07:38.747
- UTC End
- 2025-07-12 05:13:38.747
- MJD Start
- 60868.21364291
- MJD End
- 60868.217809576665
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.002004
- Ambient temperature (°C)
- 10.16
- Seeing (arcsec)
- 1.14
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 | 53.8700 | 53.6110 | 36.6000 | 37.0000 |
| U1-U3 | 96.3250 | 95.7220 | 42.9000 | 43.3000 |
| U1-U4 | 116.7700 | 115.3760 | 72.6160 | 73.1910 |
| U2-U3 | 43.1870 | 42.8410 | 50.7000 | 51.1000 |
| U2-U4 | 79.7930 | 78.7770 | 96.0310 | 96.9000 |
| U3-U4 | 58.1750 | 57.7240 | 127.8770 | 129.0170 |
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 | 60868.21364291 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.417652 |
| DEC | -29.0078 |
| 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 | 53.87 |
| HIERARCH ESO ISS PBL12 END | 53.611 |
| HIERARCH ESO ISS PBLA12 START | 36.6 |
| HIERARCH ESO ISS PBLA12 END | 37.0 |
| HIERARCH ESO ISS PBL13 START | 96.325 |
| HIERARCH ESO ISS PBL13 END | 95.722 |
| HIERARCH ESO ISS PBLA13 START | 42.9 |
| HIERARCH ESO ISS PBLA13 END | 43.3 |
| HIERARCH ESO ISS PBL14 START | 116.77 |
| HIERARCH ESO ISS PBL14 END | 115.376 |
| HIERARCH ESO ISS PBLA14 START | 72.616 |
| HIERARCH ESO ISS PBLA14 END | 73.191 |
| HIERARCH ESO ISS PBL23 START | 43.187 |
| HIERARCH ESO ISS PBL23 END | 42.841 |
| HIERARCH ESO ISS PBLA23 START | 50.7 |
| HIERARCH ESO ISS PBLA23 END | 51.1 |
| HIERARCH ESO ISS PBL24 START | 79.793 |
| HIERARCH ESO ISS PBL24 END | 78.777 |
| HIERARCH ESO ISS PBLA24 START | 96.031 |
| HIERARCH ESO ISS PBLA24 END | 96.9 |
| HIERARCH ESO ISS PBL34 START | 58.175 |
| HIERARCH ESO ISS PBL34 END | 57.724 |
| HIERARCH ESO ISS PBLA34 START | 127.877 |
| HIERARCH ESO ISS PBLA34 END | 129.017 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.002004 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.002004 |
| HIERARCH ESO ISS AMBI TEMP | 10.16 |
| HIERARCH ESO ISS AMBI FWHM START | 1.14 |
| HIERARCH ESO ISS AMBI FWHM END | 1.14 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0990 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6520 |