Observation information
- date-obs: 2024-08-17
- time-obs: 15:46:42.460900000
- date-end: 2024-08-17
- time-end: 18:10:42.448800000
- obs_id: A13_024T01_9000006394
- exposure: 5555.34148085
- sourceid: NGC 991
- observer: amrutha
- ra_pnt: 38.88617
- dec_pnt: -7.154436
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A13_024T01_9000006394_48068cztM0_level2.fits
| modeM0/AS1A13_024T01_9000006394_48068cztM0_level2_quad_clean.evt
|
| Size (bytes) | 523,961,280 | 105,431,040 |
| Size | 499.7 MB
| 100.5 MB
|
| Events in quadrant A | 7,210,438 | 683,271 |
| Events in quadrant B | 3,338,231 | 757,730 |
| Events in quadrant C | 2,984,471 | 720,603 |
| Events in quadrant D | 5,363,205 | 582,255 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 132 | 0 |
| B | 0 | 132 | 0 |
| C | 0 | 132 | 0 |
| D | 0 | 132 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 25775 | 2 |
| B | 0 | 14392 | 2 |
| C | 0 | 13324 | 2 |
| D | 0 | 20244 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 22 | 0 |
| B | 0 | 22 | 0 |
| C | 0 | 22 | 0 |
| D | 0 | 22 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6430 | 617 | 9.595645% |
| B | 6431 | 117 | 1.819313% |
| C | 6430 | 48 | 0.746501% |
| D | 6430 | 894 | 13.903577% |
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 | 8640 | 6432 | 177 | 177 | 2.05% | 2.75% |  |
| B | 8641 | 6432 | 14 | 14 | 0.16% | 0.22% |  |
| C | 8640 | 6432 | 2 | 2 | 0.02% | 0.03% |  |
| D | 8640 | 6432 | 729 | 729 | 8.44% | 11.33% |  |
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 | 4063380 | 26502.0 | 738 | 724 | 153.3 |
| A | 13 | 248 | 245423 | 1596.25 | 738 | 724 | 153.3 |
| A | 7 | 3 | 22826 | 144.18 | 738 | 724 | 153.3 |
| B | 7 | 221 | 222693 | 1487.11 | 758 | 736 | 149.3 |
| B | 0 | 200 | 50380 | 332.62 | 758 | 736 | 149.3 |
| B | 0 | 198 | 25383 | 165.14 | 758 | 736 | 149.3 |
| C | 14 | 254 | 36403 | 201.51 | 748 | 752 | 176.9 |
| C | 9 | 237 | 13224 | 70.5 | 748 | 752 | 176.9 |
| C | 12 | 2 | 9791 | 51.09 | 748 | 752 | 176.9 |
| D | 2 | 249 | 2088390 | 11979.13 | 695 | 674 | 174.3 |
| D | 2 | 165 | 167519 | 957.34 | 695 | 674 | 174.3 |
| D | 2 | 120 | 157284 | 898.61 | 695 | 674 | 174.3 |
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 |  |