Exposure
- ID
- GRAVI.2025-06-15T02:55:05.880_2
- Header ID
- GRAVI.2025-06-15T02:55:05.880
- Date updated
- 2025-06-15 03:13:25 UTC+0000
- Release date
- 2025-06-15 02:55:05 UTC+0000
- UTC Start
- 2025-06-15 02:55:05.880
- UTC End
- 2025-06-15 03:01:05.880
- MJD Start
- 60841.12159583
- MJD End
- 60841.12576249667
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0024105
- Ambient temperature (°C)
- 8.3
- Seeing (arcsec)
- 1.42
Observation
- ID
- 67871
- Category
- calibrator
- 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 | 56.3850 | 56.4060 | 11.3000 | 12.2000 |
| U1-U3 | 101.6010 | 101.6950 | 17.0000 | 17.9000 |
| U1-U4 | 123.5280 | 124.2170 | 43.4400 | 44.5570 |
| U2-U3 | 45.8430 | 45.9290 | 24.0000 | 25.0000 |
| U2-U4 | 81.5380 | 82.3450 | 65.0520 | 66.0940 |
| U3-U4 | 55.7760 | 56.4480 | 97.7120 | 98.4010 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 115.27WT.002 |
| HIERARCH ESO DPR CATG | CALIB |
| HIERARCH ESO DPR TYPE | STD,DUAL |
| MJD-OBS | 60841.12159583 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | R2 |
| RA | 266.41736 |
| DEC | -29.00779 |
| 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 | 56.385 |
| HIERARCH ESO ISS PBL12 END | 56.406 |
| HIERARCH ESO ISS PBLA12 START | 11.3 |
| HIERARCH ESO ISS PBLA12 END | 12.2 |
| HIERARCH ESO ISS PBL13 START | 101.601 |
| HIERARCH ESO ISS PBL13 END | 101.695 |
| HIERARCH ESO ISS PBLA13 START | 17.0 |
| HIERARCH ESO ISS PBLA13 END | 17.9 |
| HIERARCH ESO ISS PBL14 START | 123.528 |
| HIERARCH ESO ISS PBL14 END | 124.217 |
| HIERARCH ESO ISS PBLA14 START | 43.44 |
| HIERARCH ESO ISS PBLA14 END | 44.557 |
| HIERARCH ESO ISS PBL23 START | 45.843 |
| HIERARCH ESO ISS PBL23 END | 45.929 |
| HIERARCH ESO ISS PBLA23 START | 24.0 |
| HIERARCH ESO ISS PBLA23 END | 25.0 |
| HIERARCH ESO ISS PBL24 START | 81.538 |
| HIERARCH ESO ISS PBL24 END | 82.345 |
| HIERARCH ESO ISS PBLA24 START | 65.052 |
| HIERARCH ESO ISS PBLA24 END | 66.094 |
| HIERARCH ESO ISS PBL34 START | 55.776 |
| HIERARCH ESO ISS PBL34 END | 56.448 |
| HIERARCH ESO ISS PBLA34 START | 97.712 |
| HIERARCH ESO ISS PBLA34 END | 98.401 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.001849 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.002972 |
| HIERARCH ESO ISS AMBI TEMP | 8.3 |
| HIERARCH ESO ISS AMBI FWHM START | 1.5 |
| HIERARCH ESO ISS AMBI FWHM END | 1.34 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0990 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6530 |