Observation information
- date-obs: 2023-01-19
- time-obs: 02:51:55.675400000
- date-end: 2023-01-19
- time-end: 05:01:58.674500000
- obs_id: A12_018T01_9000005488
- exposure: 4831.65627182
- sourceid: NEP
- observer: kanak
- ra_pnt: 260.6996
- dec_pnt: 65.82265
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A12_018T01_9000005488_39523cztM0_level2.fits
| modeM0/AS1A12_018T01_9000005488_39523cztM0_level2_quad_clean.evt
|
| Size (bytes) | 387,817,920 | 87,572,160 |
| Size | 369.9 MB
| 83.5 MB
|
| Events in quadrant A | 3,913,055 | 583,623 |
| Events in quadrant B | 2,361,070 | 617,286 |
| Events in quadrant C | 5,001,096 | 520,516 |
| Events in quadrant D | 2,648,532 | 542,126 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 112 | 0 |
| B | 0 | 112 | 0 |
| C | 0 | 112 | 0 |
| D | 0 | 112 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15023 | 3 |
| B | 0 | 11305 | 2 |
| C | 0 | 18693 | 2 |
| D | 0 | 12134 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 23 | 0 |
| B | 0 | 23 | 0 |
| C | 0 | 23 | 0 |
| D | 0 | 24 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5548 | 231 | 4.163663% |
| B | 5548 | 27 | 0.486662% |
| C | 5548 | 750 | 13.518385% |
| D | 5548 | 43 | 0.775054% |
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 | 7071 | 5549 | 196 | 196 | 2.77% | 3.53% |  |
| B | 7071 | 5549 | 13 | 13 | 0.18% | 0.23% |  |
| C | 7071 | 5549 | 698 | 698 | 9.87% | 12.58% |  |
| D | 7071 | 5549 | 30 | 30 | 0.42% | 0.54% |  |
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 | 6 | 10 | 741816 | 6283.83 | 577 | 564 | 118.0 |
| A | 15 | 222 | 467163 | 3955.51 | 577 | 564 | 118.0 |
| A | 10 | 83 | 431865 | 3656.28 | 577 | 564 | 118.0 |
| B | 15 | 85 | 58412 | 517.36 | 581 | 565 | 111.8 |
| B | 5 | 255 | 16303 | 140.75 | 581 | 565 | 111.8 |
| B | 12 | 111 | 14198 | 121.93 | 581 | 565 | 111.8 |
| C | 9 | 187 | 2449168 | 19618.94 | 538 | 542 | 124.8 |
| C | 15 | 214 | 223680 | 1787.83 | 538 | 542 | 124.8 |
| C | 15 | 208 | 217707 | 1739.97 | 538 | 542 | 124.8 |
| D | 13 | 249 | 131479 | 953.06 | 566 | 548 | 137.4 |
| D | 2 | 249 | 122633 | 888.67 | 566 | 548 | 137.4 |
| D | 12 | 227 | 75166 | 543.15 | 566 | 548 | 137.4 |
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 |  |