Observation information
- date-obs: 2015-10-18
- time-obs: 13:34:15.638500000
- date-end: 2015-10-18
- time-end: 15:40:37.643000000
- obs_id: P01_126T04_9000000036
- exposure: 4603.87786949
- sourceid: crab-ssm1-p4
- observer: ramadevi
- ra_pnt: 345.6787
- dec_pnt: 9.2364
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1P01_126T04_9000000036_00304cztM0_level2.evt
| modeM0/AS1P01_126T04_9000000036_00304cztM0_level2_quad_clean.evt
|
| Size (bytes) | 872,078,400 | 75,156,480 |
| Size | 831.7 MB
| 71.7 MB
|
| Events in quadrant A | 6,903,370 | 473,807 |
| Events in quadrant B | 6,917,573 | 481,019 |
| Events in quadrant C | 6,225,446 | 467,765 |
| Events in quadrant D | 5,991,388 | 460,657 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 19 | 0 |
| B | 0 | 19 | 0 |
| C | 0 | 19 | 0 |
| D | 0 | 20 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 114 | 0 |
| B | 0 | 114 | 0 |
| C | 0 | 114 | 0 |
| D | 0 | 114 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 24480 | 3 |
| B | 0 | 24538 | 2 |
| C | 0 | 22510 | 2 |
| D | 0 | 21816 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5613 | 3 | 0.053447% |
| B | 5613 | 33 | 0.587921% |
| C | 5613 | 2 | 0.035632% |
| D | 5613 | 3 | 0.053447% |
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 | 7318 | 5614 | 185 | 185 | 2.53% | 3.30% |  |
| B | 7318 | 5614 | 142 | 142 | 1.94% | 2.53% |  |
| C | 7318 | 5614 | 39 | 39 | 0.53% | 0.69% |  |
| D | 7318 | 5614 | 38 | 38 | 0.52% | 0.68% |  |
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 | 0 | 6 | 59289 | 147.94 | 1755 | 1746 | 389.0 |
| A | 15 | 127 | 41400 | 101.95 | 1755 | 1746 | 389.0 |
| A | 12 | 189 | 6148 | 11.32 | 1755 | 1746 | 389.0 |
| B | 4 | 184 | 81854 | 196.37 | 1732 | 1745 | 407.9 |
| B | 0 | 183 | 81142 | 194.63 | 1732 | 1745 | 407.9 |
| B | 0 | 85 | 49923 | 118.1 | 1732 | 1745 | 407.9 |
| C | 2 | 192 | 83087 | 189.95 | 1539 | 1590 | 429.0 |
| C | 1 | 1 | 38474 | 85.97 | 1539 | 1590 | 429.0 |
| C | 9 | 68 | 32651 | 72.4 | 1539 | 1590 | 429.0 |
| D | 13 | 216 | 52866 | 108.09 | 1514 | 1579 | 474.5 |
| D | 13 | 51 | 38970 | 78.8 | 1514 | 1579 | 474.5 |
| D | 6 | 212 | 34777 | 69.96 | 1514 | 1579 | 474.5 |
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 |  |