Observation information
- date-obs: 2023-10-17
- time-obs: 02:03:32.338700000
- date-end: 2023-10-17
- time-end: 04:01:13.334100000
- obs_id: A12_102T01_9000005876
- exposure: 732.254075229
- 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/AS1A12_102T01_9000005876_43537cztM0_level2.fits
| modeM0/AS1A12_102T01_9000005876_43537cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,433,433,600 | 72,956,160 |
| Size | 1.3 GB
| 69.6 MB
|
| Events in quadrant A | 10,584,003 | 678,038 |
| Events in quadrant B | 9,556,361 | 713,146 |
| Events in quadrant C | 18,426,499 | 287,315 |
| Events in quadrant D | 13,951,170 | 29,561 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 142 | 0 |
| B | 0 | 142 | 0 |
| C | 0 | 142 | 0 |
| D | 0 | 142 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 36489 | 0 |
| B | 0 | 33351 | 0 |
| C | 0 | 59476 | 2 |
| D | 0 | 46298 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7061 | 2365 | 33.493839% |
| B | 7061 | 2099 | 29.726668% |
| C | 7060 | 6999 | 99.135977% |
| D | 7061 | 7061 | 100.000000% |
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 | 7061 | 7061 | 1641 | 1641 | 23.24% | 23.24% |  |
| B | 7061 | 7061 | 1468 | 1468 | 20.79% | 20.79% |  |
| C | 7059 | 7059 | 6826 | 6826 | 96.70% | 96.70% |  |
| D | 7060 | 7060 | 3922 | 3922 | 55.55% | 55.55% |  |
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 | 0 | 228 | 3900276 | 26951.99 | 695 | 680 | 144.7 |
| A | 0 | 227 | 2083165 | 14393.06 | 695 | 680 | 144.7 |
| A | 10 | 83 | 655890 | 4528.47 | 695 | 680 | 144.7 |
| B | 3 | 42 | 2999200 | 21997.16 | 708 | 687 | 136.3 |
| B | 3 | 25 | 2613463 | 19167.39 | 708 | 687 | 136.3 |
| B | 0 | 199 | 217603 | 1591.3 | 708 | 687 | 136.3 |
| C | 15 | 142 | 9113119 | 125552.1 | 303 | 305 | 72.6 |
| C | 15 | 158 | 2728139 | 37582.82 | 303 | 305 | 72.6 |
| C | 15 | 126 | 2502687 | 34476.65 | 303 | 305 | 72.6 |
| D | 4 | 216 | 7392432 | 168351.42 | 55 | 50 | 43.9 |
| D | 4 | 201 | 1751640 | 39890.07 | 55 | 50 | 43.9 |
| D | 4 | 236 | 707664 | 16114.94 | 55 | 50 | 43.9 |
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 |  |