Exposure
- ID
- GRAVI.2024-07-17T04:25:45.262_2
- Header ID
- GRAVI.2024-07-17T04:25:45.262
- Date updated
- 2024-07-17 04:40:33 UTC+0000
- Release date
- 2025-07-17 04:40:33 UTC+0000
- UTC Start
- 2024-07-17 04:25:45.262
- UTC End
- 2024-07-17 04:31:45.262
- MJD Start
- 60508.18455164
- MJD End
- 60508.1887183067
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0083815
- Ambient temperature (°C)
- 17.31
- Seeing (arcsec)
- 0.585
Observation
- ID
- 60139
- Category
- science
- Program ID
- 113.268P.004
- Program Title
- THE GALACTIC CENTER WITH GRAVITY - MEASURING THE SPIN OF SGR A* BY MEANS OF DEEP GRAVITY INTERFEROMETRY
- Program Type
- GTO
- PI / COI
- EISENHAUER / GILLESSEN / GENZEL / OTT / WIDMANN / DRESCHER / RIBEIRO / SADUN BORDONI / STRAUBMEIER / BRANDNER / PERRIN / ROUSSELET-PERRAUT / GARCIA / MANG / PAUMARD / ECKART / VINCENT / BOURDAROT / LUTZ / STURM / CAO / HORROBIN / LE BOUQUIN / KREIDBERG /
Target
- ID
- 43560
- Name
- IRS16C
- RA
- 266.417083333333
- DEC
- -29.0076816944444
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 | 54.6270 | 54.4130 | 35.1000 | 35.5000 |
| U1-U3 | 98.0770 | 97.5810 | 41.4000 | 41.9000 |
| U1-U4 | 120.8540 | 119.6940 | 70.6920 | 71.2830 |
| U2-U3 | 44.1970 | 43.9110 | 49.3000 | 49.7000 |
| U2-U4 | 82.7920 | 81.9370 | 93.2810 | 94.1010 |
| U3-U4 | 59.5410 | 59.1470 | 124.3300 | 125.3770 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 113.268P.004 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 60508.18455164 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.416869 |
| 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 | 54.627 |
| HIERARCH ESO ISS PBL12 END | 54.413 |
| HIERARCH ESO ISS PBLA12 START | 35.1 |
| HIERARCH ESO ISS PBLA12 END | 35.5 |
| HIERARCH ESO ISS PBL13 START | 98.077 |
| HIERARCH ESO ISS PBL13 END | 97.581 |
| HIERARCH ESO ISS PBLA13 START | 41.4 |
| HIERARCH ESO ISS PBLA13 END | 41.9 |
| HIERARCH ESO ISS PBL14 START | 120.854 |
| HIERARCH ESO ISS PBL14 END | 119.694 |
| HIERARCH ESO ISS PBLA14 START | 70.692 |
| HIERARCH ESO ISS PBLA14 END | 71.283 |
| HIERARCH ESO ISS PBL23 START | 44.197 |
| HIERARCH ESO ISS PBL23 END | 43.911 |
| HIERARCH ESO ISS PBLA23 START | 49.3 |
| HIERARCH ESO ISS PBLA23 END | 49.7 |
| HIERARCH ESO ISS PBL24 START | 82.792 |
| HIERARCH ESO ISS PBL24 END | 81.937 |
| HIERARCH ESO ISS PBLA24 START | 93.281 |
| HIERARCH ESO ISS PBLA24 END | 94.101 |
| HIERARCH ESO ISS PBL34 START | 59.541 |
| HIERARCH ESO ISS PBL34 END | 59.147 |
| HIERARCH ESO ISS PBLA34 START | 124.33 |
| HIERARCH ESO ISS PBLA34 END | 125.377 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.007891 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.008872 |
| HIERARCH ESO ISS AMBI TEMP | 17.31 |
| HIERARCH ESO ISS AMBI FWHM START | 0.61 |
| HIERARCH ESO ISS AMBI FWHM END | 0.56 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.1000 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6541 |