Observation information
- date-obs: 2018-01-17
- time-obs: 16:24:16.269600000
- date-end: 2018-01-17
- time-end: 18:34:58.275900000
- obs_id: A04_174T01_9000001850
- exposure: 4720.1009981
- 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_12471cztM0_level2.evt
| modeM0/AS1A04_174T01_9000001850_12471cztM0_level2_quad_clean.evt
|
| Size (bytes) | 834,681,600 | 101,583,360 |
| Size | 796.0 MB
| 96.9 MB
|
| Events in quadrant A | 13,094,655 | 549,067 |
| Events in quadrant B | 4,017,597 | 696,562 |
| Events in quadrant C | 3,245,017 | 694,499 |
| Events in quadrant D | 4,453,805 | 653,260 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 43668 | 3 |
| B | 0 | 16395 | 2 |
| C | 0 | 14181 | 2 |
| D | 0 | 17875 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 9 | 0 |
| B | 0 | 9 | 0 |
| C | 0 | 9 | 0 |
| D | 0 | 9 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 142 | 0 |
| B | 0 | 142 | 0 |
| C | 0 | 142 | 0 |
| D | 0 | 142 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6906 | 4405 | 63.785114% |
| B | 6906 | 202 | 2.924993% |
| C | 6906 | 24 | 0.347524% |
| D | 6907 | 103 | 1.491241% |
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 | 7842 | 6907 | 3004 | 3004 | 38.31% | 43.49% |  |
| B | 7842 | 6908 | 89 | 89 | 1.13% | 1.29% |  |
| C | 7842 | 6908 | 1 | 1 | 0.01% | 0.01% |  |
| D | 7843 | 6909 | 42 | 42 | 0.54% | 0.61% |  |
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 | 8971784 | 61274.49 | 707 | 693 | 146.4 |
| A | 0 | 23 | 1094891 | 7473.61 | 707 | 693 | 146.4 |
| A | 15 | 239 | 85726 | 580.79 | 707 | 693 | 146.4 |
| B | 4 | 239 | 499076 | 3087.45 | 846 | 828 | 161.4 |
| B | 11 | 51 | 39175 | 237.62 | 846 | 828 | 161.4 |
| B | 3 | 209 | 36842 | 223.16 | 846 | 828 | 161.4 |
| C | 13 | 61 | 5999 | 26.96 | 828 | 836 | 191.5 |
| C | 8 | 128 | 5682 | 25.3 | 828 | 836 | 191.5 |
| C | 14 | 234 | 5620 | 24.98 | 828 | 836 | 191.5 |
| D | 1 | 52 | 1097175 | 5490.45 | 826 | 805 | 199.7 |
| D | 7 | 71 | 77332 | 383.24 | 826 | 805 | 199.7 |
| D | 13 | 104 | 66725 | 330.12 | 826 | 805 | 199.7 |
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 |  |