Observation information
- date-obs: 2015-10-17
- time-obs: 18:27:35.634200000
- date-end: 2015-10-17
- time-end: 20:31:40.634700000
- obs_id: P01_126T02_9000000034
- exposure: 1161.51369113
- sourceid: Crab-ssm1-p2
- observer: ramadevi
- ra_pnt: 353.3941
- dec_pnt: -15.2323
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1P01_126T02_9000000034_00292cztM0_level2.evt
| modeM0/AS1P01_126T02_9000000034_00292cztM0_level2_quad_clean.evt
|
| Size (bytes) | 905,330,880 | 27,869,760 |
| Size | 863.4 MB
| 26.6 MB
|
| Events in quadrant A | 8,797,706 | 109,292 |
| Events in quadrant B | 6,468,627 | 114,954 |
| Events in quadrant C | 5,883,909 | 112,181 |
| Events in quadrant D | 5,892,698 | 111,308 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17 | 0 |
| B | 0 | 17 | 0 |
| C | 0 | 17 | 0 |
| D | 0 | 18 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 30115 | 3 |
| B | 0 | 23218 | 2 |
| C | 0 | 21508 | 2 |
| D | 0 | 21605 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 116 | 0 |
| B | 0 | 116 | 0 |
| C | 0 | 116 | 0 |
| D | 0 | 116 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5645 | 18 | 0.318866% |
| B | 5645 | 2 | 0.035430% |
| C | 5645 | 4 | 0.070859% |
| D | 5645 | 21 | 0.372011% |
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 | 7351 | 5646 | 823 | 823 | 11.20% | 14.58% |  |
| B | 7351 | 5646 | 81 | 81 | 1.10% | 1.43% |  |
| C | 7351 | 5646 | 47 | 47 | 0.64% | 0.83% |  |
| D | 7351 | 5646 | 113 | 113 | 1.54% | 2.00% |  |
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 | 15 | 127 | 2434534 | 6736.36 | 1644 | 1633 | 361.2 |
| A | 13 | 239 | 6243 | 12.76 | 1644 | 1633 | 361.2 |
| A | 14 | 47 | 5535 | 10.8 | 1644 | 1633 | 361.2 |
| B | 5 | 46 | 20719 | 48.84 | 1662 | 1676 | 389.9 |
| B | 0 | 183 | 20490 | 48.25 | 1662 | 1676 | 389.9 |
| B | 0 | 151 | 19386 | 45.42 | 1662 | 1676 | 389.9 |
| C | 3 | 159 | 39110 | 90.88 | 1478 | 1528 | 413.5 |
| C | 9 | 68 | 13938 | 30.01 | 1478 | 1528 | 413.5 |
| C | 4 | 253 | 13554 | 29.08 | 1478 | 1528 | 413.5 |
| D | 7 | 66 | 172734 | 383.81 | 1416 | 1470 | 446.2 |
| D | 13 | 216 | 143661 | 318.65 | 1416 | 1470 | 446.2 |
| D | 10 | 154 | 55909 | 122.0 | 1416 | 1470 | 446.2 |
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 |  |