Observation information
- date-obs: 2023-01-18
- time-obs: 02:21:55.687500000
- date-end: 2023-01-18
- time-end: 04:40:53.684900000
- obs_id: A12_018T01_9000005488
- exposure: 5172.22493804
- 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_39508cztM0_level2.fits
| modeM0/AS1A12_018T01_9000005488_39508cztM0_level2_quad_clean.evt
|
| Size (bytes) | 322,372,800 | 89,012,160 |
| Size | 307.4 MB
| 84.9 MB
|
| Events in quadrant A | 2,701,874 | 598,929 |
| Events in quadrant B | 2,522,833 | 612,178 |
| Events in quadrant C | 3,642,491 | 562,520 |
| Events in quadrant D | 2,638,506 | 537,902 |
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 | 11506 | 3 |
| B | 0 | 11610 | 2 |
| C | 0 | 14421 | 2 |
| D | 0 | 12043 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 28 | 0 |
| B | 0 | 28 | 0 |
| C | 0 | 28 | 0 |
| D | 0 | 29 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5483 | 10 | 0.182382% |
| B | 5483 | 65 | 1.185482% |
| C | 5483 | 273 | 4.979026% |
| D | 5483 | 63 | 1.149006% |
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 | 7156 | 5484 | 3 | 3 | 0.04% | 0.05% |  |
| B | 7156 | 5484 | 40 | 40 | 0.56% | 0.73% |  |
| C | 7156 | 5484 | 267 | 267 | 3.73% | 4.87% |  |
| D | 7156 | 5484 | 61 | 61 | 0.85% | 1.11% |  |
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 | 10 | 83 | 444316 | 3783.9 | 578 | 566 | 117.3 |
| A | 15 | 222 | 13561 | 110.81 | 578 | 566 | 117.3 |
| A | 13 | 254 | 6774 | 52.94 | 578 | 566 | 117.3 |
| B | 5 | 172 | 260008 | 2352.73 | 573 | 558 | 110.3 |
| B | 12 | 111 | 13966 | 121.59 | 573 | 558 | 110.3 |
| B | 11 | 111 | 12711 | 110.21 | 573 | 558 | 110.3 |
| C | 9 | 187 | 1264445 | 9903.05 | 550 | 553 | 127.6 |
| C | 15 | 214 | 226440 | 1769.91 | 550 | 553 | 127.6 |
| C | 15 | 208 | 3955 | 26.66 | 550 | 553 | 127.6 |
| D | 13 | 249 | 137267 | 988.25 | 560 | 544 | 138.3 |
| D | 2 | 249 | 124375 | 895.06 | 560 | 544 | 138.3 |
| D | 12 | 227 | 104120 | 748.66 | 560 | 544 | 138.3 |
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 |  |