Observation information
- date-obs: 2024-07-31
- time-obs: 07:03:14.338700000
- date-end: 2024-07-31
- time-end: 09:04:24.332000000
- obs_id: A13_081T01_9000006354
- exposure: 5775.67802906
- 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_47810cztM0_level2.fits
| modeM0/AS1A13_081T01_9000006354_47810cztM0_level2_quad_clean.evt
|
| Size (bytes) | 465,024,960 | 100,730,880 |
| Size | 443.5 MB
| 96.1 MB
|
| Events in quadrant A | 6,156,190 | 666,206 |
| Events in quadrant B | 3,170,743 | 698,931 |
| Events in quadrant C | 2,708,300 | 668,084 |
| Events in quadrant D | 4,695,243 | 582,345 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11 | 0 |
| B | 0 | 11 | 0 |
| C | 0 | 11 | 0 |
| D | 0 | 11 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 126 | 0 |
| B | 0 | 126 | 0 |
| C | 0 | 126 | 0 |
| D | 0 | 126 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 22808 | 1 |
| B | 0 | 13430 | 1 |
| C | 0 | 12824 | 1 |
| D | 0 | 18416 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6225 | 235 | 3.775100% |
| B | 6226 | 127 | 2.039833% |
| C | 6226 | 63 | 1.011886% |
| D | 6226 | 468 | 7.516865% |
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 | 7270 | 6225 | 6 | 6 | 0.08% | 0.10% |  |
| B | 7271 | 6226 | 2 | 2 | 0.03% | 0.03% |  |
| C | 7271 | 6227 | 12 | 12 | 0.17% | 0.19% |  |
| D | 7271 | 6227 | 406 | 406 | 5.58% | 6.52% |  |
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 | 3473078 | 24491.87 | 687 | 673 | 141.8 |
| A | 0 | 31 | 34445 | 238.2 | 687 | 673 | 141.8 |
| A | 3 | 137 | 7928 | 51.17 | 687 | 673 | 141.8 |
| B | 0 | 155 | 149669 | 1109.26 | 686 | 665 | 134.3 |
| B | 10 | 7 | 123348 | 913.32 | 686 | 665 | 134.3 |
| B | 5 | 255 | 102873 | 760.89 | 686 | 665 | 134.3 |
| C | 14 | 254 | 65490 | 414.0 | 673 | 673 | 156.6 |
| C | 12 | 2 | 17788 | 109.32 | 673 | 673 | 156.6 |
| C | 13 | 61 | 4567 | 24.87 | 673 | 673 | 156.6 |
| D | 12 | 2 | 1079593 | 6605.9 | 660 | 638 | 163.3 |
| D | 2 | 165 | 984064 | 6021.02 | 660 | 638 | 163.3 |
| D | 2 | 37 | 33876 | 203.5 | 660 | 638 | 163.3 |
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 |  |