Observation information
- date-obs: 2016-11-08
- time-obs: 15:03:48.265800000
- date-end: 2016-11-08
- time-end: 17:30:56.269700000
- obs_id: A02_090T01_9000000778
- exposure: 4325.06093031
- sourceid: Crab
- observer: tanmoy
- ra_pnt: 83.63308
- dec_pnt: 22.0145
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A02_090T01_9000000778_06033cztM0_level2.evt
| modeM0/AS1A02_090T01_9000000778_06033cztM0_level2_quad_clean.evt
|
| Size (bytes) | 507,139,200 | 94,230,720 |
| Size | 483.6 MB
| 89.9 MB
|
| Events in quadrant A | 4,700,673 | 594,992 |
| Events in quadrant B | 3,647,356 | 614,749 |
| Events in quadrant C | 3,249,921 | 609,386 |
| Events in quadrant D | 3,315,938 | 577,449 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18312 | 52 |
| B | 0 | 15311 | 32 |
| C | 0 | 13880 | 27 |
| D | 0 | 14173 | 13 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 134 | 0 |
| B | 0 | 134 | 0 |
| C | 0 | 134 | 0 |
| D | 0 | 134 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 23 | 0 |
| B | 0 | 23 | 0 |
| C | 0 | 23 | 0 |
| D | 0 | 23 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6557 | 444 | 6.771389% |
| B | 6558 | 89 | 1.357121% |
| C | 6557 | 62 | 0.945554% |
| D | 6564 | 50 | 0.761731% |
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 | 8828 | 6565 | 205 | 205 | 2.32% | 3.12% |  |
| B | 8828 | 6567 | 13 | 13 | 0.15% | 0.20% |  |
| C | 8828 | 6568 | 1 | 1 | 0.01% | 0.02% |  |
| D | 8828 | 6568 | 3 | 3 | 0.03% | 0.05% |  |
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 | 34 | 849139 | 5028.2 | 817 | 803 | 168.7 |
| A | 15 | 234 | 518489 | 3068.39 | 817 | 803 | 168.7 |
| A | 4 | 2 | 101083 | 594.37 | 817 | 803 | 168.7 |
| B | 15 | 204 | 178873 | 1107.5 | 844 | 828 | 160.8 |
| B | 3 | 64 | 118620 | 732.71 | 844 | 828 | 160.8 |
| B | 0 | 219 | 32340 | 196.02 | 844 | 828 | 160.8 |
| C | 1 | 16 | 31874 | 163.09 | 821 | 830 | 190.3 |
| C | 9 | 16 | 7621 | 35.68 | 821 | 830 | 190.3 |
| C | 13 | 61 | 6576 | 30.19 | 821 | 830 | 190.3 |
| D | 5 | 239 | 74462 | 366.31 | 817 | 795 | 201.1 |
| D | 8 | 195 | 40053 | 195.21 | 817 | 795 | 201.1 |
| D | 12 | 79 | 38965 | 189.8 | 817 | 795 | 201.1 |
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 |  |