Observation information
- date-obs: 2023-10-26
- time-obs: 22:27:12.830700000
- date-end: 2023-10-27
- time-end: 00:54:59.825200000
- obs_id: A12_018T01_9000005896
- exposure: 1986.16342849
- 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_9000005896_43685cztM0_level2.fits
| modeM0/AS1A12_018T01_9000005896_43685cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,388,928,960 | 105,923,520 |
| Size | 1.3 GB
| 101.0 MB
|
| Events in quadrant A | 15,841,619 | 744,660 |
| Events in quadrant B | 4,802,394 | 933,819 |
| Events in quadrant C | 20,379,765 | 216,723 |
| Events in quadrant D | 9,715,369 | 702,100 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 178 | 0 |
| B | 0 | 178 | 0 |
| C | 0 | 178 | 0 |
| D | 0 | 178 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 53112 | 2 |
| B | 0 | 20424 | 2 |
| C | 0 | 66503 | 2 |
| D | 0 | 34957 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 1 | 0 |
| B | 0 | 1 | 0 |
| C | 0 | 1 | 0 |
| D | 0 | 1 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 8767 | 2508 | 28.607277% |
| B | 8767 | 275 | 3.136763% |
| C | 8767 | 7184 | 81.943652% |
| D | 8768 | 1637 | 18.670164% |
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 | 8867 | 8768 | 1717 | 1717 | 19.36% | 19.58% |  |
| B | 8867 | 8769 | 75 | 75 | 0.85% | 0.86% |  |
| C | 8867 | 8768 | 6167 | 6167 | 69.55% | 70.34% |  |
| D | 8868 | 8770 | 1185 | 1185 | 13.36% | 13.51% |  |
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 | 222 | 10311986 | 55453.23 | 903 | 880 | 185.9 |
| A | 10 | 83 | 971857 | 5221.92 | 903 | 880 | 185.9 |
| A | 15 | 223 | 655221 | 3519.05 | 903 | 880 | 185.9 |
| B | 5 | 255 | 299126 | 1598.41 | 961 | 929 | 186.6 |
| B | 5 | 235 | 231351 | 1235.12 | 961 | 929 | 186.6 |
| B | 0 | 200 | 178502 | 951.83 | 961 | 929 | 186.6 |
| C | 15 | 142 | 16595981 | 135924.38 | 518 | 520 | 122.1 |
| C | 15 | 158 | 618948 | 5065.21 | 518 | 520 | 122.1 |
| C | 15 | 174 | 518415 | 4241.8 | 518 | 520 | 122.1 |
| D | 13 | 249 | 1471040 | 6208.32 | 860 | 839 | 236.8 |
| D | 4 | 221 | 1303578 | 5501.17 | 860 | 839 | 236.8 |
| D | 14 | 210 | 524258 | 2210.28 | 860 | 839 | 236.8 |
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 |  |