Observation information
- date-obs: 2018-01-15
- time-obs: 12:08:04.133600000
- date-end: 2018-01-15
- time-end: 14:18:58.133300000
- obs_id: A04_174T01_9000001850
- exposure: 4592.58544424
- 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_12439cztM0_level2.evt
| modeM0/AS1A04_174T01_9000001850_12439cztM0_level2_quad_clean.evt
|
| Size (bytes) | 872,447,040 | 97,341,120 |
| Size | 832.0 MB
| 92.8 MB
|
| Events in quadrant A | 11,039,580 | 603,661 |
| Events in quadrant B | 5,899,786 | 565,166 |
| Events in quadrant C | 3,652,288 | 650,712 |
| Events in quadrant D | 5,327,072 | 607,625 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 38031 | 2 |
| B | 0 | 22382 | 1 |
| C | 0 | 15677 | 1 |
| D | 0 | 20706 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 4 | 0 |
| B | 0 | 4 | 0 |
| C | 0 | 4 | 0 |
| D | 0 | 4 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 152 | 0 |
| B | 0 | 152 | 0 |
| C | 0 | 152 | 0 |
| D | 0 | 152 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7474 | 1502 | 20.096334% |
| B | 7474 | 917 | 12.269200% |
| C | 7474 | 66 | 0.883061% |
| D | 7474 | 235 | 3.144233% |
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 | 7855 | 7475 | 560 | 560 | 7.13% | 7.49% |  |
| B | 7854 | 7474 | 570 | 570 | 7.26% | 7.63% |  |
| C | 7855 | 7476 | 25 | 25 | 0.32% | 0.33% |  |
| D | 7855 | 7475 | 143 | 143 | 1.82% | 1.91% |  |
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 | 0 | 23 | 6089260 | 33767.22 | 876 | 860 | 180.3 |
| A | 13 | 251 | 701776 | 3887.39 | 876 | 860 | 180.3 |
| A | 0 | 226 | 432684 | 2394.96 | 876 | 860 | 180.3 |
| B | 4 | 239 | 1927596 | 11830.13 | 848 | 827 | 162.9 |
| B | 3 | 64 | 404150 | 2476.35 | 848 | 827 | 162.9 |
| B | 0 | 219 | 84142 | 511.54 | 848 | 827 | 162.9 |
| C | 15 | 208 | 134656 | 645.41 | 890 | 901 | 207.2 |
| C | 14 | 234 | 38163 | 179.8 | 890 | 901 | 207.2 |
| C | 8 | 128 | 6611 | 27.55 | 890 | 901 | 207.2 |
| D | 1 | 52 | 1551598 | 7236.43 | 883 | 859 | 214.3 |
| D | 7 | 80 | 152543 | 707.82 | 883 | 859 | 214.3 |
| D | 7 | 71 | 130184 | 603.49 | 883 | 859 | 214.3 |
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 |  |