Observation information
- date-obs: 2018-01-16
- time-obs: 21:09:56.209100000
- date-end: 2018-01-16
- time-end: 23:21:01.215000000
- obs_id: A04_174T01_9000001850
- exposure: 3879.06250456
- 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_12460cztM0_level2.evt
| modeM0/AS1A04_174T01_9000001850_12460cztM0_level2_quad_clean.evt
|
| Size (bytes) | 692,706,240 | 93,620,160 |
| Size | 660.6 MB
| 89.3 MB
|
| Events in quadrant A | 9,095,610 | 523,929 |
| Events in quadrant B | 3,770,644 | 654,399 |
| Events in quadrant C | 3,038,360 | 643,341 |
| Events in quadrant D | 4,650,436 | 575,221 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 31500 | 3 |
| B | 0 | 15250 | 2 |
| C | 0 | 13050 | 2 |
| D | 0 | 18082 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16 | 0 |
| B | 0 | 16 | 0 |
| C | 0 | 16 | 0 |
| D | 0 | 17 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 126 | 0 |
| B | 0 | 126 | 0 |
| C | 0 | 126 | 0 |
| D | 0 | 126 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6270 | 2124 | 33.875598% |
| B | 6270 | 132 | 2.105263% |
| C | 6270 | 24 | 0.382775% |
| D | 6270 | 362 | 5.773525% |
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 | 7515 | 6270 | 1867 | 1867 | 24.84% | 29.78% |  |
| B | 7516 | 6271 | 61 | 61 | 0.81% | 0.97% |  |
| C | 7516 | 6272 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7516 | 6271 | 289 | 289 | 3.85% | 4.61% |  |
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 | 0 | 23 | 3329424 | 22810.0 | 715 | 702 | 145.9 |
| A | 13 | 251 | 2477096 | 16969.44 | 715 | 702 | 145.9 |
| A | 0 | 226 | 259870 | 1775.94 | 715 | 702 | 145.9 |
| B | 4 | 239 | 488010 | 3259.84 | 798 | 782 | 149.5 |
| B | 0 | 85 | 48743 | 320.89 | 798 | 782 | 149.5 |
| B | 0 | 187 | 30697 | 200.15 | 798 | 782 | 149.5 |
| C | 13 | 61 | 5832 | 28.15 | 778 | 786 | 179.3 |
| C | 14 | 234 | 3000 | 12.35 | 778 | 786 | 179.3 |
| C | 12 | 4 | 2788 | 11.17 | 778 | 786 | 179.3 |
| D | 1 | 52 | 1598901 | 8864.06 | 749 | 730 | 180.3 |
| D | 13 | 104 | 99414 | 547.34 | 749 | 730 | 180.3 |
| D | 8 | 195 | 61897 | 339.26 | 749 | 730 | 180.3 |
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 |  |