Observation information
- date-obs: 2018-02-02
- time-obs: 19:04:55.973300000
- date-end: 2018-02-02
- time-end: 21:11:07.973200000
- obs_id: A04_174T01_9000001876
- exposure: 4040.3546367
- 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_12710cztM0_level2.evt
| modeM0/AS1A04_174T01_9000001876_12710cztM0_level2_quad_clean.evt
|
| Size (bytes) | 533,753,280 | 93,130,560 |
| Size | 509.0 MB
| 88.8 MB
|
| Events in quadrant A | 3,179,588 | 621,379 |
| Events in quadrant B | 4,516,176 | 587,132 |
| Events in quadrant C | 3,172,608 | 611,317 |
| Events in quadrant D | 4,861,305 | 552,779 |
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 | 12 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13559 | 3 |
| B | 0 | 17598 | 2 |
| C | 0 | 13663 | 2 |
| D | 0 | 18794 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 130 | 0 |
| B | 0 | 130 | 0 |
| C | 0 | 130 | 0 |
| D | 0 | 130 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6415 | 29 | 0.452065% |
| B | 6415 | 491 | 7.653936% |
| C | 6415 | 41 | 0.639127% |
| D | 6415 | 426 | 6.640686% |
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 | 7561 | 6417 | 1 | 1 | 0.01% | 0.02% |  |
| B | 7561 | 6417 | 404 | 404 | 5.34% | 6.30% |  |
| C | 7561 | 6417 | 32 | 32 | 0.42% | 0.50% |  |
| D | 7561 | 6417 | 411 | 411 | 5.44% | 6.40% |  |
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 | 11 | 29 | 44773 | 273.8 | 798 | 783 | 160.7 |
| A | 15 | 239 | 37803 | 230.42 | 798 | 783 | 160.7 |
| A | 12 | 189 | 18409 | 109.71 | 798 | 783 | 160.7 |
| B | 4 | 239 | 1388334 | 9558.52 | 769 | 752 | 145.2 |
| B | 3 | 209 | 36027 | 243.0 | 769 | 752 | 145.2 |
| B | 4 | 81 | 22860 | 152.29 | 769 | 752 | 145.2 |
| C | 15 | 208 | 157596 | 874.18 | 773 | 782 | 179.4 |
| C | 13 | 61 | 5637 | 27.06 | 773 | 782 | 179.4 |
| C | 8 | 222 | 2856 | 11.56 | 773 | 782 | 179.4 |
| D | 1 | 52 | 1531695 | 8118.64 | 744 | 728 | 188.6 |
| D | 10 | 157 | 411152 | 2176.46 | 744 | 728 | 188.6 |
| D | 13 | 104 | 56335 | 294.88 | 744 | 728 | 188.6 |
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 |  |