Observation information
- date-obs: 2015-11-07
- time-obs: 12:47:25.304700000
- date-end: 2015-11-07
- time-end: 14:46:58.297200000
- obs_id: P01_126T01_9000000084
- exposure: 4446.9251319
- sourceid: Crab-SSM1-P1
- observer: ramadevi
- ra_pnt: 80.3923
- dec_pnt: -68.1274
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1P01_126T01_9000000084_00599cztM0_level2.evt
| modeM0/AS1P01_126T01_9000000084_00599cztM0_level2_quad_clean.evt
|
| Size (bytes) | 799,997,760 | 65,361,600 |
| Size | 762.9 MB
| 62.3 MB
|
| Events in quadrant A | 5,984,471 | 410,073 |
| Events in quadrant B | 6,300,793 | 411,625 |
| Events in quadrant C | 5,238,521 | 411,365 |
| Events in quadrant D | 6,370,437 | 394,167 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 22 | 0 |
| B | 0 | 22 | 0 |
| C | 0 | 22 | 0 |
| D | 0 | 22 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 21333 | 2 |
| B | 0 | 22282 | 1 |
| C | 0 | 19157 | 1 |
| D | 0 | 22528 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 102 | 0 |
| B | 0 | 102 | 0 |
| C | 0 | 102 | 0 |
| D | 0 | 102 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5017 | 1 | 0.019932% |
| B | 5017 | 28 | 0.558102% |
| C | 5017 | 3 | 0.059797% |
| D | 5017 | 170 | 3.388479% |
Noise dominated fraction
Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.
| Quadrant |
# 1 sec bins |
Bins with >0 counts |
Bins with >2000 counts |
High rate bins dominated by noise |
Noise dominated (total time) |
Noise dominated (detector-on time) |
Marked lightcurve |
| A | 7173 | 5018 | 111 | 111 | 1.55% | 2.21% |  |
| B | 7173 | 5018 | 201 | 201 | 2.80% | 4.01% |  |
| C | 7173 | 5018 | 26 | 26 | 0.36% | 0.52% |  |
| D | 7173 | 5018 | 405 | 405 | 5.65% | 8.07% |  |
Top noisy pixels
Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1
| Pixel properties |
Quadrant properties |
| Quadrant |
DetID |
PixID |
Counts |
Sigma |
Mean |
Median |
Sigma |
| A | 13 | 160 | 49207 | 139.7 | 1509 | 1492 | 341.6 |
| A | 0 | 238 | 38126 | 107.25 | 1509 | 1492 | 341.6 |
| A | 0 | 69 | 25090 | 69.09 | 1509 | 1492 | 341.6 |
| B | 7 | 221 | 294667 | 816.3 | 1503 | 1514 | 359.1 |
| B | 5 | 191 | 77830 | 212.51 | 1503 | 1514 | 359.1 |
| B | 4 | 250 | 55826 | 151.23 | 1503 | 1514 | 359.1 |
| C | 9 | 83 | 18015 | 44.9 | 1322 | 1370 | 370.7 |
| C | 15 | 241 | 15783 | 38.88 | 1322 | 1370 | 370.7 |
| C | 5 | 234 | 11151 | 26.39 | 1322 | 1370 | 370.7 |
| D | 12 | 237 | 595683 | 1478.43 | 1280 | 1333 | 402.0 |
| D | 1 | 4 | 251155 | 621.43 | 1280 | 1333 | 402.0 |
| D | 13 | 221 | 231367 | 572.2 | 1280 | 1333 | 402.0 |
Detector plane histogram (DPH)
Histogram calculated using DETX and DETY for each event in the final _common_clean file
| Quadrant A |
 |
 |
Quadrant B |
| Quadrant D |
 |
 |
Quadrant C |
Count rate plots and images
| Plot type |
Count rate plots |
Images |
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data. |
 |
 |
Quadrant-wise count rates
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins |
 |
 |
Housekeeping plots
| Parameter |
Plot |
| CZT HV Monitor |  |
| D_VDD |  |
| Temperature 1 |  |
| Veto HV Monitor |  |
| Veto LLD |  |
| Alpha Counter |  |
| _CPM_Rate |  |
| CZT Counter |  |
| +2.5 Volts monitor |  |
| +5 Volts monitor |  |
| _ROLL_ROT |  |
| _Roll_DEC |  |
| _Roll_RA |  |
| Veto Counter |  |