Exposure
- ID
- GRAVI.2025-05-12T05:48:46.536_2
- Header ID
- GRAVI.2025-05-12T05:48:46.536
- Date updated
- 2025-05-12 19:45:47 UTC+0000
- Release date
- 2026-05-12 19:45:45 UTC+0000
- UTC Start
- 2025-05-12 05:48:46.536
- UTC End
- 2025-05-12 05:54:46.536
- MJD Start
- 60807.24220528
- MJD End
- 60807.24637194667
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0074684999999999994
- Ambient temperature (°C)
- 17.55
- Seeing (arcsec)
- 0.5
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 | 56.5100 | 56.5260 | 16.6000 | 17.5000 |
| U1-U3 | 102.1420 | 102.2120 | 22.7000 | 23.6000 |
| U1-U4 | 127.3420 | 127.8350 | 49.9580 | 50.9220 |
| U2-U3 | 46.3300 | 46.3940 | 30.1000 | 31.0000 |
| U2-U4 | 85.9170 | 86.4730 | 71.1320 | 72.0370 |
| U3-U4 | 59.3700 | 59.8200 | 101.9660 | 102.6530 |
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 | 60807.24220528 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.416252 |
| DEC | -29.00739 |
| 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 | 56.51 |
| HIERARCH ESO ISS PBL12 END | 56.526 |
| HIERARCH ESO ISS PBLA12 START | 16.6 |
| HIERARCH ESO ISS PBLA12 END | 17.5 |
| HIERARCH ESO ISS PBL13 START | 102.142 |
| HIERARCH ESO ISS PBL13 END | 102.212 |
| HIERARCH ESO ISS PBLA13 START | 22.7 |
| HIERARCH ESO ISS PBLA13 END | 23.6 |
| HIERARCH ESO ISS PBL14 START | 127.342 |
| HIERARCH ESO ISS PBL14 END | 127.835 |
| HIERARCH ESO ISS PBLA14 START | 49.958 |
| HIERARCH ESO ISS PBLA14 END | 50.922 |
| HIERARCH ESO ISS PBL23 START | 46.33 |
| HIERARCH ESO ISS PBL23 END | 46.394 |
| HIERARCH ESO ISS PBLA23 START | 30.1 |
| HIERARCH ESO ISS PBLA23 END | 31.0 |
| HIERARCH ESO ISS PBL24 START | 85.917 |
| HIERARCH ESO ISS PBL24 END | 86.473 |
| HIERARCH ESO ISS PBLA24 START | 71.132 |
| HIERARCH ESO ISS PBLA24 END | 72.037 |
| HIERARCH ESO ISS PBL34 START | 59.37 |
| HIERARCH ESO ISS PBL34 END | 59.82 |
| HIERARCH ESO ISS PBLA34 START | 101.966 |
| HIERARCH ESO ISS PBLA34 END | 102.653 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.007861 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.007076 |
| HIERARCH ESO ISS AMBI TEMP | 17.55 |
| HIERARCH ESO ISS AMBI FWHM START | 0.49 |
| HIERARCH ESO ISS AMBI FWHM END | 0.51 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0990 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6530 |