Observation information
- date-obs: 2018-01-16
- time-obs: 08:44:17.167800000
- date-end: 2018-01-16
- time-end: 11:10:41.177000000
- obs_id: A04_174T01_9000001850
- exposure: 4320.7997179
- sourceid: Crab
- observer: mithunnps
- ra_pnt: 83.63308
- dec_pnt: 22.0145
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A04_174T01_9000001850_12452cztM0_level2.evt
| modeM0/AS1A04_174T01_9000001850_12452cztM0_level2_quad_clean.evt
|
| Size (bytes) | 707,736,960 | 97,899,840 |
| Size | 675.0 MB
| 93.4 MB
|
| Events in quadrant A | 6,908,071 | 592,561 |
| Events in quadrant B | 5,256,392 | 592,873 |
| Events in quadrant C | 4,145,245 | 613,250 |
| Events in quadrant D | 4,554,024 | 581,071 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 26596 | 2 |
| B | 0 | 20841 | 1 |
| C | 0 | 17857 | 1 |
| D | 0 | 19199 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 4 | 0 |
| B | 0 | 4 | 0 |
| C | 0 | 4 | 0 |
| D | 0 | 4 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 170 | 0 |
| B | 0 | 170 | 0 |
| C | 0 | 170 | 0 |
| D | 0 | 170 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 8419 | 752 | 8.932177% |
| B | 8419 | 800 | 9.502316% |
| C | 8419 | 313 | 3.717781% |
| D | 8419 | 443 | 5.261908% |
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 | 8785 | 8420 | 118 | 118 | 1.34% | 1.40% |  |
| B | 8785 | 8420 | 251 | 251 | 2.86% | 2.98% |  |
| C | 8785 | 8420 | 0 | 0 | 0.00% | 0.00% |  |
| D | 8785 | 8421 | 84 | 84 | 0.96% | 1.00% |  |
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 | 251 | 1740973 | 8027.45 | 1049 | 1023 | 216.7 |
| A | 0 | 23 | 441391 | 2031.69 | 1049 | 1023 | 216.7 |
| A | 1 | 162 | 231831 | 1064.86 | 1049 | 1023 | 216.7 |
| B | 4 | 239 | 862050 | 4167.81 | 1058 | 1031 | 206.6 |
| B | 11 | 51 | 117043 | 561.56 | 1058 | 1031 | 206.6 |
| B | 0 | 187 | 73038 | 348.55 | 1058 | 1031 | 206.6 |
| C | 15 | 208 | 31116 | 122.1 | 1055 | 1061 | 246.1 |
| C | 13 | 61 | 7884 | 27.72 | 1055 | 1061 | 246.1 |
| C | 3 | 202 | 2511 | 5.89 | 1055 | 1061 | 246.1 |
| D | 13 | 104 | 239239 | 953.3 | 1038 | 1008 | 249.9 |
| D | 8 | 195 | 225107 | 896.75 | 1038 | 1008 | 249.9 |
| D | 10 | 199 | 88125 | 348.61 | 1038 | 1008 | 249.9 |
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 |  |