Observation information
- date-obs: 2020-09-29
- time-obs: 19:15:01.964800000
- date-end: 2020-09-29
- time-end: 21:20:34.961400000
- obs_id: A09_120T02_9000003904
- exposure: 4366.90391582
- sourceid: Crab
- observer: avishek
- ra_pnt: 83.63308
- dec_pnt: 22.0145
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A09_120T02_9000003904_27068cztM0_level2.evt
| modeM0/AS1A09_120T02_9000003904_27068cztM0_level2_quad_clean.evt
|
| Size (bytes) | 634,674,240 | 109,535,040 |
| Size | 605.3 MB
| 104.5 MB
|
| Events in quadrant A | 3,956,193 | 738,343 |
| Events in quadrant B | 5,659,195 | 707,352 |
| Events in quadrant C | 3,524,179 | 742,977 |
| Events in quadrant D | 5,662,723 | 696,075 |
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 | 15887 | 0 |
| B | 0 | 20855 | 0 |
| C | 0 | 14476 | 0 |
| D | 0 | 21012 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6193 | 90 | 1.453254% |
| B | 6194 | 1076 | 17.371650% |
| C | 6193 | 108 | 1.743904% |
| D | 6193 | 593 | 9.575327% |
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 | 7533 | 6194 | 29 | 29 | 0.38% | 0.47% |  |
| B | 7534 | 6195 | 881 | 881 | 11.69% | 14.22% |  |
| C | 7533 | 6194 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7533 | 6194 | 593 | 593 | 7.87% | 9.57% |  |
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 | 14 | 235 | 518399 | 2978.39 | 873 | 862 | 173.8 |
| A | 12 | 189 | 45755 | 258.36 | 873 | 862 | 173.8 |
| A | 6 | 16 | 26040 | 144.9 | 873 | 862 | 173.8 |
| B | 0 | 189 | 2439386 | 16049.22 | 811 | 793 | 151.9 |
| B | 10 | 245 | 29997 | 192.2 | 811 | 793 | 151.9 |
| B | 0 | 182 | 21590 | 136.87 | 811 | 793 | 151.9 |
| C | 14 | 238 | 140944 | 694.62 | 866 | 877 | 201.6 |
| C | 15 | 208 | 6775 | 29.25 | 866 | 877 | 201.6 |
| C | 13 | 61 | 5709 | 23.96 | 866 | 877 | 201.6 |
| D | 1 | 52 | 2268358 | 11360.11 | 836 | 815 | 199.6 |
| D | 2 | 250 | 206976 | 1032.84 | 836 | 815 | 199.6 |
| D | 2 | 234 | 27013 | 131.25 | 836 | 815 | 199.6 |
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 |  |