Exposure
- ID
- GRAVI.2025-05-12T05:55:58.554_2
- Header ID
- GRAVI.2025-05-12T05:55:58.554
- 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 05:55:58.554
- UTC End
- 2025-05-12 06:01:58.554
- MJD Start
- 60807.24720549
- MJD End
- 60807.251372156665
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.007876
- Ambient temperature (°C)
- 17.55
- Seeing (arcsec)
- 0.455
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 | 56.5280 | 56.5400 | 17.6000 | 18.4000 |
| U1-U3 | 102.2200 | 102.2810 | 23.7000 | 24.5000 |
| U1-U4 | 127.8910 | 128.3390 | 51.0360 | 51.9770 |
| U2-U3 | 46.4010 | 46.4580 | 31.1000 | 32.0000 |
| U2-U4 | 86.5360 | 87.0420 | 72.1440 | 73.0310 |
| U3-U4 | 59.8720 | 60.2820 | 102.7350 | 103.4260 |
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 | 60807.24720549 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.416267 |
| DEC | -29.00738 |
| 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 | 56.528 |
| HIERARCH ESO ISS PBL12 END | 56.54 |
| HIERARCH ESO ISS PBLA12 START | 17.6 |
| HIERARCH ESO ISS PBLA12 END | 18.4 |
| HIERARCH ESO ISS PBL13 START | 102.22 |
| HIERARCH ESO ISS PBL13 END | 102.281 |
| HIERARCH ESO ISS PBLA13 START | 23.7 |
| HIERARCH ESO ISS PBLA13 END | 24.5 |
| HIERARCH ESO ISS PBL14 START | 127.891 |
| HIERARCH ESO ISS PBL14 END | 128.339 |
| HIERARCH ESO ISS PBLA14 START | 51.036 |
| HIERARCH ESO ISS PBLA14 END | 51.977 |
| HIERARCH ESO ISS PBL23 START | 46.401 |
| HIERARCH ESO ISS PBL23 END | 46.458 |
| HIERARCH ESO ISS PBLA23 START | 31.1 |
| HIERARCH ESO ISS PBLA23 END | 32.0 |
| HIERARCH ESO ISS PBL24 START | 86.536 |
| HIERARCH ESO ISS PBL24 END | 87.042 |
| HIERARCH ESO ISS PBLA24 START | 72.144 |
| HIERARCH ESO ISS PBLA24 END | 73.031 |
| HIERARCH ESO ISS PBL34 START | 59.872 |
| HIERARCH ESO ISS PBL34 END | 60.282 |
| HIERARCH ESO ISS PBLA34 START | 102.735 |
| HIERARCH ESO ISS PBLA34 END | 103.426 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.007076 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.008676 |
| HIERARCH ESO ISS AMBI TEMP | 17.55 |
| HIERARCH ESO ISS AMBI FWHM START | 0.51 |
| HIERARCH ESO ISS AMBI FWHM END | 0.4 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0990 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6530 |