Observation information
- date-obs: 2018-01-19
- time-obs: 05:00:36.365600000
- date-end: 2018-01-19
- time-end: 07:09:00.372600000
- obs_id: A04_174T01_9000001850
- exposure: 3198.22871354
- 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_12494cztM0_level2.evt
| modeM0/AS1A04_174T01_9000001850_12494cztM0_level2_quad_clean.evt
|
| Size (bytes) | 504,178,560 | 76,849,920 |
| Size | 480.8 MB
| 73.3 MB
|
| Events in quadrant A | 3,909,842 | 461,398 |
| Events in quadrant B | 3,617,570 | 470,536 |
| Events in quadrant C | 3,321,105 | 468,174 |
| Events in quadrant D | 3,940,701 | 434,649 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16174 | 2 |
| B | 0 | 15121 | 1 |
| C | 0 | 14550 | 1 |
| D | 0 | 16357 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 6 | 0 |
| B | 0 | 6 | 0 |
| C | 0 | 6 | 0 |
| D | 0 | 6 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 144 | 0 |
| B | 0 | 144 | 0 |
| C | 0 | 144 | 0 |
| D | 0 | 144 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7064 | 99 | 1.401472% |
| B | 7064 | 117 | 1.656285% |
| C | 7064 | 31 | 0.438845% |
| D | 7064 | 171 | 2.420725% |
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 | 7705 | 7066 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7705 | 7066 | 26 | 26 | 0.34% | 0.37% |  |
| C | 7705 | 7065 | 2 | 2 | 0.03% | 0.03% |  |
| D | 7705 | 7066 | 126 | 126 | 1.64% | 1.78% |  |
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 | 1 | 162 | 145185 | 820.33 | 858 | 841 | 176.0 |
| A | 12 | 189 | 140108 | 791.48 | 858 | 841 | 176.0 |
| A | 1 | 178 | 82431 | 463.69 | 858 | 841 | 176.0 |
| B | 4 | 239 | 107999 | 646.44 | 864 | 844 | 165.8 |
| B | 0 | 214 | 51519 | 305.71 | 864 | 844 | 165.8 |
| B | 0 | 197 | 31407 | 184.38 | 864 | 844 | 165.8 |
| C | 15 | 208 | 36591 | 184.24 | 839 | 846 | 194.0 |
| C | 14 | 234 | 11825 | 56.59 | 839 | 846 | 194.0 |
| C | 13 | 61 | 6029 | 26.72 | 839 | 846 | 194.0 |
| D | 1 | 52 | 527805 | 2666.77 | 820 | 799 | 197.6 |
| D | 7 | 80 | 108755 | 546.28 | 820 | 799 | 197.6 |
| D | 13 | 249 | 50851 | 253.27 | 820 | 799 | 197.6 |
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 |  |