Exposure
- ID
- GRAVI.2025-06-15T01:58:38.735_2
- Header ID
- GRAVI.2025-06-15T01:58:38.735
- Date updated
- 2025-06-15 02:17:49 UTC+0000
- Release date
- 2026-06-15 02:17:49 UTC+0000
- UTC Start
- 2025-06-15 01:58:38.735
- UTC End
- 2025-06-15 02:04:38.735
- MJD Start
- 60841.08239277
- MJD End
- 60841.08655943666
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0019814999999999998
- Ambient temperature (°C)
- 8.27
- Seeing (arcsec)
- 1.545
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 | 56.2420 | 56.2520 | 3.2000 | 4.2000 |
| U1-U3 | 100.8720 | 100.9380 | 8.2000 | 9.3000 |
| U1-U4 | 116.9630 | 117.7260 | 32.5430 | 33.8980 |
| U2-U3 | 45.1130 | 45.1880 | 14.5000 | 15.6000 |
| U2-U4 | 73.2950 | 74.3200 | 54.6130 | 55.9500 |
| U3-U4 | 48.4820 | 49.4400 | 91.4630 | 92.2120 |
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 | 60841.08239277 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.417323 |
| 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 | 56.242 |
| HIERARCH ESO ISS PBL12 END | 56.252 |
| HIERARCH ESO ISS PBLA12 START | 3.2 |
| HIERARCH ESO ISS PBLA12 END | 4.2 |
| HIERARCH ESO ISS PBL13 START | 100.872 |
| HIERARCH ESO ISS PBL13 END | 100.938 |
| HIERARCH ESO ISS PBLA13 START | 8.2 |
| HIERARCH ESO ISS PBLA13 END | 9.3 |
| HIERARCH ESO ISS PBL14 START | 116.963 |
| HIERARCH ESO ISS PBL14 END | 117.726 |
| HIERARCH ESO ISS PBLA14 START | 32.543 |
| HIERARCH ESO ISS PBLA14 END | 33.898 |
| HIERARCH ESO ISS PBL23 START | 45.113 |
| HIERARCH ESO ISS PBL23 END | 45.188 |
| HIERARCH ESO ISS PBLA23 START | 14.5 |
| HIERARCH ESO ISS PBLA23 END | 15.6 |
| HIERARCH ESO ISS PBL24 START | 73.295 |
| HIERARCH ESO ISS PBL24 END | 74.32 |
| HIERARCH ESO ISS PBLA24 START | 54.613 |
| HIERARCH ESO ISS PBLA24 END | 55.95 |
| HIERARCH ESO ISS PBL34 START | 48.482 |
| HIERARCH ESO ISS PBL34 END | 49.44 |
| HIERARCH ESO ISS PBLA34 START | 91.463 |
| HIERARCH ESO ISS PBLA34 END | 92.212 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.001644 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.002319 |
| HIERARCH ESO ISS AMBI TEMP | 8.27 |
| HIERARCH ESO ISS AMBI FWHM START | 1.84 |
| 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 |