Observation information
- date-obs: 2018-02-03
- time-obs: 09:02:07.964700000
- date-end: 2018-02-03
- time-end: 11:09:36.960900000
- obs_id: A04_174T01_9000001876
- exposure: 3960.67947051
- 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_9000001876_12718cztM0_level2.evt
| modeM0/AS1A04_174T01_9000001876_12718cztM0_level2_quad_clean.evt
|
| Size (bytes) | 539,858,880 | 87,583,680 |
| Size | 514.8 MB
| 83.5 MB
|
| Events in quadrant A | 3,483,736 | 572,614 |
| Events in quadrant B | 6,011,642 | 498,623 |
| Events in quadrant C | 3,154,567 | 571,986 |
| Events in quadrant D | 3,251,622 | 548,264 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11 | 0 |
| B | 0 | 11 | 0 |
| C | 0 | 11 | 0 |
| D | 0 | 11 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14297 | 3 |
| B | 0 | 22117 | 2 |
| C | 0 | 13533 | 2 |
| D | 0 | 13967 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 132 | 0 |
| B | 0 | 132 | 0 |
| C | 0 | 132 | 0 |
| D | 0 | 132 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6608 | 76 | 1.150121% |
| B | 6608 | 1095 | 16.570823% |
| C | 6608 | 40 | 0.605327% |
| D | 6609 | 45 | 0.680890% |
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 | 7649 | 6610 | 29 | 29 | 0.38% | 0.44% |  |
| B | 7649 | 6610 | 806 | 806 | 10.54% | 12.19% |  |
| C | 7649 | 6610 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7650 | 6611 | 8 | 8 | 0.10% | 0.12% |  |
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 | 15 | 239 | 127999 | 751.53 | 837 | 822 | 169.2 |
| A | 12 | 189 | 73652 | 430.37 | 837 | 822 | 169.2 |
| A | 11 | 29 | 58222 | 339.19 | 837 | 822 | 169.2 |
| B | 4 | 239 | 2664280 | 18226.96 | 766 | 749 | 146.1 |
| B | 4 | 206 | 246346 | 1680.66 | 766 | 749 | 146.1 |
| B | 3 | 64 | 49420 | 333.06 | 766 | 749 | 146.1 |
| C | 15 | 208 | 10993 | 54.67 | 805 | 813 | 186.2 |
| C | 13 | 61 | 5707 | 26.28 | 805 | 813 | 186.2 |
| C | 14 | 234 | 4204 | 18.21 | 805 | 813 | 186.2 |
| D | 1 | 52 | 140935 | 734.7 | 803 | 784 | 190.8 |
| D | 10 | 199 | 25157 | 127.77 | 803 | 784 | 190.8 |
| D | 2 | 234 | 23172 | 117.36 | 803 | 784 | 190.8 |
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 |  |