Observation information
- date-obs: 2020-09-05
- time-obs: 20:21:02.648200000
- date-end: 2020-09-06
- time-end: 00:25:00.640800000
- obs_id: A09_145T01_9000003848
- exposure: 8654.51529834
- sourceid: Crab
- observer: aarthy
- ra_pnt: 83.63308
- dec_pnt: 22.0145
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A09_145T01_9000003848_26715cztM0_level2.evt
| modeM0/AS1A09_145T01_9000003848_26715cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,084,849,920 | 188,542,080 |
| Size | 1.0 GB
| 179.8 MB
|
| Events in quadrant A | 7,274,582 | 1,229,164 |
| Events in quadrant B | 7,295,194 | 1,235,430 |
| Events in quadrant C | 6,329,640 | 1,204,470 |
| Events in quadrant D | 11,092,555 | 1,158,365 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 29600 | 0 |
| B | 0 | 29652 | 0 |
| C | 0 | 26589 | 0 |
| D | 0 | 41810 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17 | 0 |
| B | 0 | 17 | 0 |
| C | 0 | 17 | 0 |
| D | 0 | 17 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 12763 | 359 | 2.812818% |
| B | 12764 | 473 | 3.705735% |
| C | 12764 | 203 | 1.590411% |
| D | 12764 | 980 | 7.677844% |
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 | 14638 | 12766 | 162 | 162 | 1.11% | 1.27% |  |
| B | 14639 | 12767 | 196 | 196 | 1.34% | 1.54% |  |
| C | 14639 | 12767 | 4 | 4 | 0.03% | 0.03% |  |
| D | 14639 | 12767 | 535 | 535 | 3.65% | 4.19% |  |
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 | 13 | 1130801 | 3506.65 | 1586 | 1559 | 322.0 |
| A | 12 | 96 | 23459 | 68.01 | 1586 | 1559 | 322.0 |
| A | 13 | 254 | 22057 | 63.65 | 1586 | 1559 | 322.0 |
| B | 0 | 189 | 728452 | 2437.42 | 1575 | 1538 | 298.2 |
| B | 10 | 246 | 293598 | 979.31 | 1575 | 1538 | 298.2 |
| B | 12 | 111 | 36041 | 115.69 | 1575 | 1538 | 298.2 |
| C | 14 | 238 | 244461 | 671.5 | 1532 | 1546 | 361.7 |
| C | 15 | 208 | 44795 | 119.56 | 1532 | 1546 | 361.7 |
| C | 2 | 16 | 38087 | 101.01 | 1532 | 1546 | 361.7 |
| D | 1 | 52 | 4154384 | 10737.7 | 1502 | 1466 | 386.8 |
| D | 2 | 250 | 514235 | 1325.81 | 1502 | 1466 | 386.8 |
| D | 7 | 80 | 355504 | 915.39 | 1502 | 1466 | 386.8 |
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 |  |