Observation information
- date-obs: 2024-04-16
- time-obs: 19:56:17.325900000
- date-end: 2024-04-16
- time-end: 22:02:45.028000000
- obs_id: A13_094T02_9000006190
- exposure: 6831.04218239
- sourceid: NGC 6251
- observer: sannagulati
- ra_pnt: 248.1332
- dec_pnt: 82.53789
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A13_094T02_9000006190_46246cztM0_level2.fits
| modeM0/AS1A13_094T02_9000006190_46246cztM0_level2_quad_clean.evt
|
| Size (bytes) | 543,490,560 | 115,865,280 |
| Size | 518.3 MB
| 110.5 MB
|
| Events in quadrant A | 6,980,915 | 741,720 |
| Events in quadrant B | 4,516,095 | 782,091 |
| Events in quadrant C | 3,563,914 | 782,253 |
| Events in quadrant D | 4,496,218 | 698,305 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 146 | 0 |
| B | 0 | 146 | 0 |
| C | 0 | 146 | 0 |
| D | 0 | 146 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 26015 | 1 |
| B | 0 | 18342 | 1 |
| C | 0 | 15944 | 1 |
| D | 0 | 18577 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 4 | 0 |
| B | 0 | 4 | 0 |
| C | 0 | 4 | 0 |
| D | 0 | 4 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7238 | 361 | 4.987566% |
| B | 7237 | 187 | 2.583944% |
| C | 7238 | 77 | 1.063830% |
| D | 7238 | 274 | 3.785576% |
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 | 7588 | 7239 | 198 | 198 | 2.61% | 2.74% |  |
| B | 7587 | 7237 | 88 | 88 | 1.16% | 1.22% |  |
| C | 7588 | 7239 | 46 | 46 | 0.61% | 0.64% |  |
| D | 7588 | 7239 | 210 | 210 | 2.77% | 2.90% |  |
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 | 3326048 | 20646.58 | 770 | 755 | 161.1 |
| A | 0 | 247 | 513338 | 3182.6 | 770 | 755 | 161.1 |
| A | 6 | 10 | 68330 | 419.57 | 770 | 755 | 161.1 |
| B | 3 | 112 | 1018172 | 6603.99 | 781 | 755 | 154.1 |
| B | 5 | 172 | 191026 | 1235.04 | 781 | 755 | 154.1 |
| B | 4 | 171 | 56935 | 364.66 | 781 | 755 | 154.1 |
| C | 12 | 2 | 201547 | 1091.57 | 783 | 785 | 183.9 |
| C | 3 | 9 | 179153 | 969.81 | 783 | 785 | 183.9 |
| C | 1 | 3 | 111948 | 604.41 | 783 | 785 | 183.9 |
| D | 12 | 128 | 404709 | 2103.35 | 770 | 747 | 192.1 |
| D | 2 | 249 | 290035 | 1506.27 | 770 | 747 | 192.1 |
| D | 1 | 52 | 267919 | 1391.11 | 770 | 747 | 192.1 |
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 |  |