Observation information
- date-obs: 2018-11-29
- time-obs: 05:43:52.373500000
- date-end: 2018-11-29
- time-end: 07:52:30.373300000
- obs_id: C04_004T01_9000002542
- exposure: 4598.31734066
- sourceid: SSM1_Crab
- observer: ramadevi
- ra_pnt: 304.9241
- dec_pnt: 28.5588
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1C04_004T01_9000002542_17142cztM0_level2.evt
| modeM0/AS1C04_004T01_9000002542_17142cztM0_level2_quad_clean.evt
|
| Size (bytes) | 529,603,200 | 89,608,320 |
| Size | 505.1 MB
| 85.5 MB
|
| Events in quadrant A | 3,606,297 | 553,060 |
| Events in quadrant B | 3,569,046 | 566,344 |
| Events in quadrant C | 4,962,329 | 535,670 |
| Events in quadrant D | 3,389,276 | 533,698 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 154 | 0 |
| B | 0 | 154 | 0 |
| C | 0 | 154 | 0 |
| D | 0 | 154 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15640 | 2 |
| B | 0 | 15581 | 2 |
| C | 0 | 19661 | 2 |
| D | 0 | 15498 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 1 | 0 |
| B | 0 | 1 | 0 |
| C | 0 | 1 | 0 |
| D | 0 | 1 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7538 | 135 | 1.790926% |
| B | 7539 | 148 | 1.963125% |
| C | 7539 | 184 | 2.440642% |
| D | 7539 | 60 | 0.795862% |
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 | 7718 | 7540 | 5 | 5 | 0.06% | 0.07% |  |
| B | 7719 | 7541 | 2 | 2 | 0.03% | 0.03% |  |
| C | 7719 | 7541 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7719 | 7541 | 1 | 1 | 0.01% | 0.01% |  |
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 | 12 | 96 | 82794 | 441.06 | 908 | 884 | 185.7 |
| A | 12 | 189 | 31750 | 166.2 | 908 | 884 | 185.7 |
| A | 0 | 226 | 7948 | 38.04 | 908 | 884 | 185.7 |
| B | 12 | 111 | 21547 | 117.23 | 907 | 882 | 176.3 |
| B | 4 | 173 | 19647 | 106.45 | 907 | 882 | 176.3 |
| B | 11 | 111 | 18644 | 100.76 | 907 | 882 | 176.3 |
| C | 3 | 233 | 1439240 | 6993.3 | 868 | 872 | 205.7 |
| C | 14 | 238 | 133284 | 643.78 | 868 | 872 | 205.7 |
| C | 13 | 61 | 6242 | 26.11 | 868 | 872 | 205.7 |
| D | 2 | 234 | 30779 | 139.19 | 884 | 856 | 215.0 |
| D | 2 | 120 | 28631 | 129.2 | 884 | 856 | 215.0 |
| D | 14 | 226 | 8730 | 36.63 | 884 | 856 | 215.0 |
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 |  |