Observation information
- date-obs: 2020-09-05
- time-obs: 15:07:56.654800000
- date-end: 2020-09-05
- time-end: 17:24:00.651800000
- obs_id: A09_145T01_9000003848
- exposure: 3608.05364324
- 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_26710cztM0_level2.evt
| modeM0/AS1A09_145T01_9000003848_26710cztM0_level2_quad_clean.evt
|
| Size (bytes) | 589,144,320 | 86,878,080 |
| Size | 561.9 MB
| 82.9 MB
|
| Events in quadrant A | 3,805,565 | 542,068 |
| Events in quadrant B | 3,983,575 | 543,514 |
| Events in quadrant C | 4,505,655 | 521,079 |
| Events in quadrant D | 5,046,591 | 510,006 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15711 | 0 |
| B | 0 | 16316 | 0 |
| C | 0 | 17957 | 0 |
| D | 0 | 19837 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 8 | 0 |
| B | 0 | 9 | 0 |
| C | 0 | 9 | 0 |
| D | 0 | 9 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7394 | 117 | 1.582364% |
| B | 7394 | 137 | 1.852854% |
| C | 7394 | 281 | 3.800379% |
| D | 7394 | 450 | 6.086016% |
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 | 7744 | 7395 | 1 | 1 | 0.01% | 0.01% |  |
| B | 7744 | 7395 | 5 | 5 | 0.06% | 0.07% |  |
| C | 7744 | 7395 | 21 | 21 | 0.27% | 0.28% |  |
| D | 7744 | 7395 | 268 | 268 | 3.46% | 3.62% |  |
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 | 69938 | 355.21 | 958 | 939 | 194.2 |
| A | 6 | 16 | 22962 | 113.37 | 958 | 939 | 194.2 |
| A | 12 | 96 | 16310 | 79.13 | 958 | 939 | 194.2 |
| B | 0 | 189 | 146303 | 800.76 | 945 | 922 | 181.6 |
| B | 10 | 246 | 44649 | 240.85 | 945 | 922 | 181.6 |
| B | 5 | 172 | 23909 | 126.61 | 945 | 922 | 181.6 |
| C | 3 | 233 | 623826 | 2908.95 | 908 | 915 | 214.1 |
| C | 1 | 0 | 160508 | 745.29 | 908 | 915 | 214.1 |
| C | 14 | 238 | 145312 | 674.32 | 908 | 915 | 214.1 |
| D | 1 | 52 | 1284966 | 5647.8 | 915 | 890 | 227.4 |
| D | 2 | 250 | 110140 | 480.52 | 915 | 890 | 227.4 |
| D | 15 | 0 | 79798 | 347.06 | 915 | 890 | 227.4 |
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 |  |