| Chandra X-ray Center | 	PI: Dr. CXC Calibration  | 
| Parameter | Value | Description | 
|---|---|---|
| ASCDSVER | 7.6.7.2 | Processing system revision | 
| DATE | 2006-06-04T17:12:01 | Date and time of file creation | 
| DATE-OBS | 2004-02-09T16:50:16 | Observation start date | 
| DATE-END | 2004-02-09T17:14:33 | Observation end date | 
| RA_PNT | 332.09130976669 | Pointing RA | 
| DEC_PNT | 45.787375658018 | Pointing Dec | 
| ROLL_PNT | 349.6623709143 | Pointing Roll | 
| RA_TARG | 332.17 | Observer's specified target RA | 
| DEC_TARG | 45.742306 | Observer's specified target Dec | 
| DEGAP | hrcsD1999-07-22gaplookupN0002.fits | 
| Parameter | Value | Description | 
|---|---|---|
| ASCDSVER | 7.6.7.2 | Processing system revision | 
| DATE | 2006-06-04T17:55:13 | Date and time of file creation | 
| DATE-OBS | 2004-02-09T16:50:16 | Observation start date | 
| DATE-END | 2004-02-09T17:14:33 | Observation end date | 
| INSTRUME | HRC | Instrument | 
| DETNAM | HRC-S | Detector | 
| GRATING | NONE | Grating | 
| OBJECT | ArLac | Source name | 
| TITLE | AO5A Calibration Observations to Monitor the Spatial Variations in the HRC-S Gain | Proposal title | 
| OBSERVER | Dr. CXC Calibration | Principal investigator | 
| OBS_ID | 5090 | Observation id | 
| SEQ_NUM | 290363 | Sequence number | 
| RA_NOM | 332.09130976669 | Nominal RA | 
| DEC_NOM | 45.787375658018 | Nominal Dec | 
| ROLL_NOM | 349.6623709143 | Nominal Roll |