Observation information
- date-obs: 2022-01-20
- time-obs: 10:05:25.895500000
- date-end: 2022-01-20
- time-end: 12:29:13.899600000
- obs_id: A11_059T05_9000004876
- exposure: 4299.66044615
- sourceid: NGC 1904
- observer: annapurni
- ra_pnt: 81.04413
- dec_pnt: -24.52425
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A11_059T05_9000004876_34138cztM0_level2.evt
| modeM0/AS1A11_059T05_9000004876_34138cztM0_level2_quad_clean.evt
|
| Size (bytes) | 454,487,040 | 83,736,000 |
| Size | 433.4 MB
| 79.9 MB
|
| Events in quadrant A | 3,099,710 | 533,271 |
| Events in quadrant B | 2,925,666 | 537,475 |
| Events in quadrant C | 3,415,842 | 539,292 |
| Events in quadrant D | 3,918,324 | 509,347 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 27 | 0 |
| B | 0 | 27 | 0 |
| C | 0 | 27 | 0 |
| D | 0 | 27 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12949 | 3 |
| B | 0 | 12424 | 2 |
| C | 0 | 13631 | 2 |
| D | 0 | 15526 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 124 | 0 |
| B | 0 | 124 | 0 |
| C | 0 | 124 | 0 |
| D | 0 | 124 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5956 | 18 | 0.302216% |
| B | 5956 | 27 | 0.453324% |
| C | 5956 | 137 | 2.300201% |
| D | 5956 | 97 | 1.628610% |
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 | 7237 | 5957 | 8 | 8 | 0.11% | 0.13% |  |
| B | 7237 | 5957 | 17 | 17 | 0.23% | 0.29% |  |
| C | 7237 | 5957 | 94 | 94 | 1.30% | 1.58% |  |
| D | 7237 | 5957 | 78 | 78 | 1.08% | 1.31% |  |
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 | 360288 | 2552.5 | 699 | 684 | 140.9 |
| A | 10 | 83 | 20122 | 137.97 | 699 | 684 | 140.9 |
| A | 13 | 6 | 18093 | 123.57 | 699 | 684 | 140.9 |
| B | 5 | 172 | 115522 | 848.39 | 692 | 674 | 135.4 |
| B | 4 | 232 | 26136 | 188.09 | 692 | 674 | 135.4 |
| B | 0 | 219 | 24710 | 177.56 | 692 | 674 | 135.4 |
| C | 0 | 10 | 341018 | 2166.48 | 672 | 677 | 157.1 |
| C | 15 | 214 | 257818 | 1636.86 | 672 | 677 | 157.1 |
| C | 14 | 254 | 174836 | 1108.63 | 672 | 677 | 157.1 |
| D | 8 | 195 | 698004 | 4152.78 | 677 | 657 | 167.9 |
| D | 13 | 249 | 195659 | 1161.26 | 677 | 657 | 167.9 |
| D | 7 | 80 | 109785 | 649.87 | 677 | 657 | 167.9 |
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 |  |