Observation information
- date-obs: 2022-01-09
- time-obs: 02:50:15.847300000
- date-end: 2022-01-09
- time-end: 04:47:38.849400000
- obs_id: A11_037T01_9000004858
- exposure: 3261.68843555
- sourceid: NGC 2808
- observer: deepthisprabhu
- ra_pnt: 138.0129
- dec_pnt: -64.8625
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A11_037T01_9000004858_33971cztM0_level2.evt
| modeM0/AS1A11_037T01_9000004858_33971cztM0_level2_quad_clean.evt
|
| Size (bytes) | 664,542,720 | 73,532,160 |
| Size | 633.8 MB
| 70.1 MB
|
| Events in quadrant A | 3,457,344 | 479,748 |
| Events in quadrant B | 3,473,321 | 524,125 |
| Events in quadrant C | 2,893,028 | 517,172 |
| Events in quadrant D | 9,952,797 | 342,923 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13491 | 2 |
| B | 0 | 13616 | 1 |
| C | 0 | 11574 | 1 |
| D | 0 | 33150 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 106 | 0 |
| B | 0 | 106 | 0 |
| C | 0 | 106 | 0 |
| D | 0 | 106 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 19 | 0 |
| B | 0 | 19 | 0 |
| C | 0 | 19 | 0 |
| D | 0 | 19 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5160 | 485 | 9.399225% |
| B | 5160 | 93 | 1.802326% |
| C | 5160 | 31 | 0.600775% |
| D | 5160 | 3012 | 58.372093% |
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 | 7043 | 5161 | 97 | 97 | 1.38% | 1.88% |  |
| B | 7043 | 5161 | 58 | 58 | 0.82% | 1.12% |  |
| C | 7043 | 5161 | 18 | 18 | 0.26% | 0.35% |  |
| D | 7043 | 5161 | 2675 | 2675 | 37.98% | 51.83% |  |
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 | 15 | 169 | 1062995 | 8726.52 | 611 | 601 | 121.7 |
| A | 14 | 238 | 12913 | 101.13 | 611 | 601 | 121.7 |
| A | 13 | 254 | 8604 | 65.74 | 611 | 601 | 121.7 |
| B | 5 | 172 | 428608 | 3604.18 | 636 | 620 | 118.7 |
| B | 0 | 182 | 203353 | 1707.26 | 636 | 620 | 118.7 |
| B | 0 | 190 | 161628 | 1355.88 | 636 | 620 | 118.7 |
| C | 15 | 214 | 225141 | 1542.22 | 634 | 640 | 145.6 |
| C | 0 | 10 | 107492 | 734.02 | 634 | 640 | 145.6 |
| C | 3 | 233 | 56928 | 386.67 | 634 | 640 | 145.6 |
| D | 12 | 33 | 7463814 | 71969.14 | 420 | 409 | 103.7 |
| D | 8 | 195 | 460891 | 4440.4 | 420 | 409 | 103.7 |
| D | 2 | 250 | 159196 | 1531.17 | 420 | 409 | 103.7 |
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 |  |