Exposure
- ID
- GRAVI.2025-05-12T08:50:25.998_2
- Header ID
- GRAVI.2025-05-12T08:50:25.998
- Date updated
- 2025-05-12 19:50:48 UTC+0000
- Release date
- 2026-05-12 19:50:47 UTC+0000
- UTC Start
- 2025-05-12 08:50:25.998
- UTC End
- 2025-05-12 08:56:25.998
- MJD Start
- 60807.36835646
- MJD End
- 60807.372523126665
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0067885
- Ambient temperature (°C)
- 17.48
- Seeing (arcsec)
- 0.38
Observation
- ID
- 67241
- Category
- science
- Program ID
- 115.27WT.001
- 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 | 54.4900 | 54.2660 | 35.4000 | 35.8000 |
| U1-U3 | 97.7580 | 97.2390 | 41.7000 | 42.2000 |
| U1-U4 | 120.1070 | 118.8960 | 71.0760 | 71.6670 |
| U2-U3 | 44.0130 | 43.7130 | 49.6000 | 50.0000 |
| U2-U4 | 82.2420 | 81.3500 | 93.8120 | 94.6450 |
| U3-U4 | 59.2870 | 58.8790 | 125.0070 | 126.0760 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 115.27WT.001 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 60807.36835646 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.41645 |
| DEC | -29.00753 |
| 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 | 54.49 |
| HIERARCH ESO ISS PBL12 END | 54.266 |
| HIERARCH ESO ISS PBLA12 START | 35.4 |
| HIERARCH ESO ISS PBLA12 END | 35.8 |
| HIERARCH ESO ISS PBL13 START | 97.758 |
| HIERARCH ESO ISS PBL13 END | 97.239 |
| HIERARCH ESO ISS PBLA13 START | 41.7 |
| HIERARCH ESO ISS PBLA13 END | 42.2 |
| HIERARCH ESO ISS PBL14 START | 120.107 |
| HIERARCH ESO ISS PBL14 END | 118.896 |
| HIERARCH ESO ISS PBLA14 START | 71.076 |
| HIERARCH ESO ISS PBLA14 END | 71.667 |
| HIERARCH ESO ISS PBL23 START | 44.013 |
| HIERARCH ESO ISS PBL23 END | 43.713 |
| HIERARCH ESO ISS PBLA23 START | 49.6 |
| HIERARCH ESO ISS PBLA23 END | 50.0 |
| HIERARCH ESO ISS PBL24 START | 82.242 |
| HIERARCH ESO ISS PBL24 END | 81.35 |
| HIERARCH ESO ISS PBLA24 START | 93.812 |
| HIERARCH ESO ISS PBLA24 END | 94.645 |
| HIERARCH ESO ISS PBL34 START | 59.287 |
| HIERARCH ESO ISS PBL34 END | 58.879 |
| HIERARCH ESO ISS PBLA34 START | 125.007 |
| HIERARCH ESO ISS PBLA34 END | 126.076 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.005818 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.007759 |
| HIERARCH ESO ISS AMBI TEMP | 17.48 |
| HIERARCH ESO ISS AMBI FWHM START | 0.41 |
| HIERARCH ESO ISS AMBI FWHM END | 0.35 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0990 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6530 |