Exposure
- ID
- GRAVI.2025-06-15T02:20:38.792_2
- Header ID
- GRAVI.2025-06-15T02:20:38.792
- Date updated
- 2025-06-15 02:39:30 UTC+0000
- Release date
- 2026-06-15 02:39:30 UTC+0000
- UTC Start
- 2025-06-15 02:20:38.792
- UTC End
- 2025-06-15 02:26:38.792
- MJD Start
- 60841.0976712
- MJD End
- 60841.10183786666
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.002307
- Ambient temperature (°C)
- 8.09
- Seeing (arcsec)
- 1.395
Observation
- ID
- 67873
- Category
- science
- Program ID
- 115.27WT.002
- 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
- 45257
- Name
- IRS16C
- RA
- 266.4170791666666
- DEC
- -29.007681388888887
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 | 56.2830 | 56.2990 | 6.4000 | 7.3000 |
| U1-U3 | 101.1210 | 101.2050 | 11.7000 | 12.7000 |
| U1-U4 | 119.5780 | 120.3400 | 37.0460 | 38.3010 |
| U2-U3 | 45.3820 | 45.4660 | 18.3000 | 19.4000 |
| U2-U4 | 76.7230 | 77.6820 | 59.0060 | 60.2070 |
| U3-U4 | 51.6220 | 52.4700 | 93.9720 | 94.6840 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 115.27WT.002 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 60841.0976712 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.417355 |
| DEC | -29.00778 |
| 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 | 56.283 |
| HIERARCH ESO ISS PBL12 END | 56.299 |
| HIERARCH ESO ISS PBLA12 START | 6.4 |
| HIERARCH ESO ISS PBLA12 END | 7.3 |
| HIERARCH ESO ISS PBL13 START | 101.121 |
| HIERARCH ESO ISS PBL13 END | 101.205 |
| HIERARCH ESO ISS PBLA13 START | 11.7 |
| HIERARCH ESO ISS PBLA13 END | 12.7 |
| HIERARCH ESO ISS PBL14 START | 119.578 |
| HIERARCH ESO ISS PBL14 END | 120.34 |
| HIERARCH ESO ISS PBLA14 START | 37.046 |
| HIERARCH ESO ISS PBLA14 END | 38.301 |
| HIERARCH ESO ISS PBL23 START | 45.382 |
| HIERARCH ESO ISS PBL23 END | 45.466 |
| HIERARCH ESO ISS PBLA23 START | 18.3 |
| HIERARCH ESO ISS PBLA23 END | 19.4 |
| HIERARCH ESO ISS PBL24 START | 76.723 |
| HIERARCH ESO ISS PBL24 END | 77.682 |
| HIERARCH ESO ISS PBLA24 START | 59.006 |
| HIERARCH ESO ISS PBLA24 END | 60.207 |
| HIERARCH ESO ISS PBL34 START | 51.622 |
| HIERARCH ESO ISS PBL34 END | 52.47 |
| HIERARCH ESO ISS PBLA34 START | 93.972 |
| HIERARCH ESO ISS PBLA34 END | 94.684 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.002131 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.002483 |
| HIERARCH ESO ISS AMBI TEMP | 8.09 |
| HIERARCH ESO ISS AMBI FWHM START | 1.54 |
| HIERARCH ESO ISS AMBI FWHM END | 1.25 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0990 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6530 |