Observation information
- date-obs: 2018-02-01
- time-obs: 18:49:02.988500000
- date-end: 2018-02-01
- time-end: 20:48:55.988500000
- obs_id: A04_174T01_9000001876
- exposure: 3552.33914256
- 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_12695cztM0_level2.evt
| modeM0/AS1A04_174T01_9000001876_12695cztM0_level2_quad_clean.evt
|
| Size (bytes) | 484,004,160 | 83,378,880 |
| Size | 461.6 MB
| 79.5 MB
|
| Events in quadrant A | 2,906,263 | 558,661 |
| Events in quadrant B | 4,960,048 | 477,522 |
| Events in quadrant C | 2,861,088 | 551,606 |
| Events in quadrant D | 3,526,647 | 521,121 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13 | 0 |
| B | 0 | 13 | 0 |
| C | 0 | 13 | 0 |
| D | 0 | 13 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12419 | 2 |
| B | 0 | 18551 | 1 |
| C | 0 | 12304 | 1 |
| D | 0 | 14305 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 120 | 0 |
| B | 0 | 120 | 0 |
| C | 0 | 120 | 0 |
| D | 0 | 120 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5953 | 42 | 0.705527% |
| B | 5953 | 822 | 13.808164% |
| C | 5953 | 30 | 0.503948% |
| D | 5953 | 139 | 2.334957% |
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 | 7194 | 5957 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7194 | 5956 | 600 | 600 | 8.34% | 10.07% |  |
| C | 7194 | 5957 | 1 | 1 | 0.01% | 0.02% |  |
| D | 7194 | 5956 | 105 | 105 | 1.46% | 1.76% |  |
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 | 8 | 15 | 23804 | 153.66 | 743 | 729 | 150.2 |
| A | 12 | 189 | 18900 | 121.0 | 743 | 729 | 150.2 |
| A | 7 | 16 | 9219 | 56.54 | 743 | 729 | 150.2 |
| B | 4 | 239 | 2029364 | 15904.78 | 676 | 665 | 127.6 |
| B | 0 | 85 | 200560 | 1567.16 | 676 | 665 | 127.6 |
| B | 0 | 219 | 29499 | 226.06 | 676 | 665 | 127.6 |
| C | 15 | 208 | 47518 | 278.17 | 721 | 730 | 168.2 |
| C | 13 | 61 | 5382 | 27.66 | 721 | 730 | 168.2 |
| C | 1 | 5 | 3335 | 15.49 | 721 | 730 | 168.2 |
| D | 1 | 52 | 740759 | 4297.61 | 714 | 696 | 172.2 |
| D | 10 | 157 | 31712 | 180.11 | 714 | 696 | 172.2 |
| D | 2 | 234 | 23058 | 129.86 | 714 | 696 | 172.2 |
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 |  |