Observation information
- date-obs: 2018-01-17
- time-obs: 05:53:16.233300000
- date-end: 2018-01-17
- time-end: 08:05:16.240800000
- obs_id: A04_174T01_9000001850
- exposure: 3279.74553716
- 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_12465cztM0_level2.evt
| modeM0/AS1A04_174T01_9000001850_12465cztM0_level2_quad_clean.evt
|
| Size (bytes) | 688,060,800 | 77,961,600 |
| Size | 656.2 MB
| 74.3 MB
|
| Events in quadrant A | 9,395,831 | 436,740 |
| Events in quadrant B | 3,788,065 | 489,011 |
| Events in quadrant C | 3,351,057 | 487,419 |
| Events in quadrant D | 3,822,130 | 451,695 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 32976 | 3 |
| B | 0 | 15618 | 2 |
| C | 0 | 14677 | 2 |
| D | 0 | 16123 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 7 | 0 |
| B | 0 | 7 | 0 |
| C | 0 | 7 | 0 |
| D | 0 | 8 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 146 | 0 |
| B | 0 | 146 | 0 |
| C | 0 | 146 | 0 |
| D | 0 | 146 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7092 | 1317 | 18.570220% |
| B | 7115 | 175 | 2.459592% |
| C | 7115 | 63 | 0.885453% |
| D | 7115 | 159 | 2.234715% |
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 | 7746 | 7094 | 806 | 806 | 10.41% | 11.36% |  |
| B | 7746 | 7116 | 32 | 32 | 0.41% | 0.45% |  |
| C | 7746 | 7117 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7746 | 7118 | 81 | 81 | 1.05% | 1.14% |  |
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 | 5513159 | 32235.31 | 834 | 816 | 171.0 |
| A | 0 | 23 | 383763 | 2239.41 | 834 | 816 | 171.0 |
| A | 1 | 162 | 83862 | 485.64 | 834 | 816 | 171.0 |
| B | 4 | 239 | 198562 | 1163.01 | 883 | 862 | 170.0 |
| B | 11 | 51 | 40479 | 233.05 | 883 | 862 | 170.0 |
| B | 0 | 187 | 37201 | 213.77 | 883 | 862 | 170.0 |
| C | 13 | 61 | 6128 | 26.1 | 859 | 867 | 201.5 |
| C | 12 | 4 | 2623 | 8.71 | 859 | 867 | 201.5 |
| C | 3 | 202 | 1988 | 5.56 | 859 | 867 | 201.5 |
| D | 1 | 52 | 351492 | 1719.47 | 839 | 817 | 203.9 |
| D | 13 | 249 | 134350 | 654.76 | 839 | 817 | 203.9 |
| D | 7 | 71 | 102666 | 499.4 | 839 | 817 | 203.9 |
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 |  |