Exposure
- ID
- GRAVI.2025-05-13T07:46:34.927_2
- Header ID
- GRAVI.2025-05-13T07:46:34.927
- Date updated
- 2025-05-13 08:00:53 UTC+0000
- Release date
- 2026-05-13 08:00:53 UTC+0000
- UTC Start
- 2025-05-13 07:46:34.927
- UTC End
- 2025-05-13 07:52:34.927
- MJD Start
- 60808.32401536
- MJD End
- 60808.328182026664
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.014718
- Ambient temperature (°C)
- 16.43
- Seeing (arcsec)
- 0.245
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 | 55.9530 | 55.8440 | 30.4000 | 31.0000 |
| U1-U3 | 101.1580 | 100.9070 | 36.8000 | 37.4000 |
| U1-U4 | 128.0150 | 127.4490 | 65.2240 | 65.8920 |
| U2-U3 | 45.9740 | 45.8310 | 44.6000 | 45.2000 |
| U2-U4 | 88.0680 | 87.6590 | 86.4870 | 87.2550 |
| U3-U4 | 61.9970 | 61.8130 | 116.1790 | 117.0470 |
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 | 60808.32401536 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.41649 |
| DEC | -29.00747 |
| 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 | 55.953 |
| HIERARCH ESO ISS PBL12 END | 55.844 |
| HIERARCH ESO ISS PBLA12 START | 30.4 |
| HIERARCH ESO ISS PBLA12 END | 31.0 |
| HIERARCH ESO ISS PBL13 START | 101.158 |
| HIERARCH ESO ISS PBL13 END | 100.907 |
| HIERARCH ESO ISS PBLA13 START | 36.8 |
| HIERARCH ESO ISS PBLA13 END | 37.4 |
| HIERARCH ESO ISS PBL14 START | 128.015 |
| HIERARCH ESO ISS PBL14 END | 127.449 |
| HIERARCH ESO ISS PBLA14 START | 65.224 |
| HIERARCH ESO ISS PBLA14 END | 65.892 |
| HIERARCH ESO ISS PBL23 START | 45.974 |
| HIERARCH ESO ISS PBL23 END | 45.831 |
| HIERARCH ESO ISS PBLA23 START | 44.6 |
| HIERARCH ESO ISS PBLA23 END | 45.2 |
| HIERARCH ESO ISS PBL24 START | 88.068 |
| HIERARCH ESO ISS PBL24 END | 87.659 |
| HIERARCH ESO ISS PBLA24 START | 86.487 |
| HIERARCH ESO ISS PBLA24 END | 87.255 |
| HIERARCH ESO ISS PBL34 START | 61.997 |
| HIERARCH ESO ISS PBL34 END | 61.813 |
| HIERARCH ESO ISS PBLA34 START | 116.179 |
| HIERARCH ESO ISS PBLA34 END | 117.047 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.015138 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.014298 |
| HIERARCH ESO ISS AMBI TEMP | 16.43 |
| HIERARCH ESO ISS AMBI FWHM START | 0.24 |
| HIERARCH ESO ISS AMBI FWHM END | 0.25 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0990 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6530 |