Observation information
- date-obs: 2024-04-16
- time-obs: 18:05:53.366300000
- date-end: 2024-04-16
- time-end: 20:19:04.031900000
- obs_id: A13_094T02_9000006190
- exposure: 6533.34641093
- 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_46245cztM0_level2.fits
| modeM0/AS1A13_094T02_9000006190_46245cztM0_level2_quad_clean.evt
|
| Size (bytes) | 516,268,800 | 112,242,240 |
| Size | 492.4 MB
| 107.0 MB
|
| Events in quadrant A | 6,625,827 | 720,558 |
| Events in quadrant B | 5,093,108 | 761,701 |
| Events in quadrant C | 3,291,176 | 751,953 |
| Events in quadrant D | 3,566,633 | 685,404 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 138 | 0 |
| B | 0 | 138 | 0 |
| C | 0 | 138 | 0 |
| D | 0 | 138 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 24535 | 1 |
| B | 0 | 19940 | 1 |
| C | 0 | 14862 | 1 |
| D | 0 | 15624 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 13 | 0 |
| C | 0 | 13 | 0 |
| D | 0 | 13 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6886 | 308 | 4.472843% |
| B | 6886 | 172 | 2.497822% |
| C | 6886 | 93 | 1.350566% |
| D | 6886 | 107 | 1.553877% |
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 | 7691 | 6887 | 61 | 61 | 0.79% | 0.89% |  |
| B | 7691 | 6886 | 54 | 54 | 0.70% | 0.78% |  |
| C | 7691 | 6887 | 55 | 55 | 0.72% | 0.80% |  |
| D | 7691 | 6887 | 60 | 60 | 0.78% | 0.87% |  |
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 | 3508725 | 22921.69 | 736 | 720 | 153.0 |
| A | 0 | 247 | 201153 | 1309.65 | 736 | 720 | 153.0 |
| A | 0 | 226 | 16715 | 104.51 | 736 | 720 | 153.0 |
| B | 3 | 112 | 1838256 | 12823.11 | 745 | 722 | 143.3 |
| B | 4 | 171 | 112653 | 781.1 | 745 | 722 | 143.3 |
| B | 5 | 255 | 45433 | 312.01 | 745 | 722 | 143.3 |
| C | 12 | 2 | 232633 | 1324.14 | 746 | 748 | 175.1 |
| C | 1 | 3 | 70726 | 399.59 | 746 | 748 | 175.1 |
| C | 3 | 9 | 66565 | 375.83 | 746 | 748 | 175.1 |
| D | 2 | 249 | 167431 | 903.5 | 742 | 717 | 184.5 |
| D | 1 | 52 | 129306 | 696.89 | 742 | 717 | 184.5 |
| D | 8 | 129 | 91271 | 490.76 | 742 | 717 | 184.5 |
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 |  |