Observation information
- date-obs: 2024-07-31
- time-obs: 12:18:49.322100000
- date-end: 2024-07-31
- time-end: 14:18:53.316600000
- obs_id: A13_081T01_9000006354
- exposure: 6616.15512663
- sourceid: 1ES 1927+654
- observer: savithri
- ra_pnt: 291.8314
- dec_pnt: 65.56506
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A13_081T01_9000006354_47813cztM0_level2.fits
| modeM0/AS1A13_081T01_9000006354_47813cztM0_level2_quad_clean.evt
|
| Size (bytes) | 543,525,120 | 113,454,720 |
| Size | 518.3 MB
| 108.2 MB
|
| Events in quadrant A | 6,989,365 | 771,616 |
| Events in quadrant B | 3,969,331 | 779,853 |
| Events in quadrant C | 3,090,442 | 739,180 |
| Events in quadrant D | 5,511,914 | 642,889 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 144 | 0 |
| B | 0 | 144 | 0 |
| C | 0 | 144 | 0 |
| D | 0 | 144 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 26331 | 0 |
| B | 0 | 16600 | 0 |
| C | 0 | 14812 | 0 |
| D | 0 | 21337 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7205 | 116 | 1.609993% |
| B | 7205 | 44 | 0.610687% |
| C | 7205 | 19 | 0.263706% |
| D | 7205 | 612 | 8.494101% |
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 | 7205 | 7205 | 2 | 2 | 0.03% | 0.03% |  |
| B | 7205 | 7205 | 8 | 8 | 0.11% | 0.11% |  |
| C | 7205 | 7205 | 15 | 15 | 0.21% | 0.21% |  |
| D | 7205 | 7205 | 581 | 581 | 8.06% | 8.06% |  |
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 | 3893170 | 23926.73 | 785 | 766 | 162.7 |
| A | 13 | 248 | 50203 | 303.89 | 785 | 766 | 162.7 |
| A | 3 | 137 | 9247 | 52.13 | 785 | 766 | 162.7 |
| B | 10 | 7 | 418260 | 2748.48 | 778 | 755 | 151.9 |
| B | 0 | 200 | 240352 | 1577.29 | 778 | 755 | 151.9 |
| B | 0 | 155 | 110171 | 720.3 | 778 | 755 | 151.9 |
| C | 14 | 254 | 80821 | 445.36 | 766 | 767 | 179.8 |
| C | 12 | 2 | 11933 | 62.12 | 766 | 767 | 179.8 |
| C | 12 | 250 | 9036 | 46.0 | 766 | 767 | 179.8 |
| D | 12 | 2 | 1749506 | 9369.72 | 746 | 719 | 186.6 |
| D | 12 | 233 | 387563 | 2072.65 | 746 | 719 | 186.6 |
| D | 13 | 84 | 121052 | 644.72 | 746 | 719 | 186.6 |
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 |  |