Observation information
- date-obs: 2015-11-08
- time-obs: 07:42:34.223800000
- date-end: 2015-11-08
- time-end: 09:50:15.214700000
- obs_id: P01_126T01_9000000084
- exposure: 3138.52060712
- sourceid: Crab-SSM1-P1
- observer: ramadevi
- ra_pnt: 80.3923
- dec_pnt: -68.1274
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1P01_126T01_9000000084_00611cztM0_level2.evt
| modeM0/AS1P01_126T01_9000000084_00611cztM0_level2_quad_clean.evt
|
| Size (bytes) | 802,846,080 | 50,454,720 |
| Size | 765.7 MB
| 48.1 MB
|
| Events in quadrant A | 6,095,522 | 294,697 |
| Events in quadrant B | 5,966,856 | 300,924 |
| Events in quadrant C | 5,505,986 | 298,727 |
| Events in quadrant D | 6,420,281 | 289,149 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 27 | 0 |
| B | 0 | 27 | 0 |
| C | 0 | 27 | 0 |
| D | 0 | 28 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 21598 | 3 |
| B | 0 | 21205 | 2 |
| C | 0 | 19840 | 2 |
| D | 0 | 22517 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 100 | 0 |
| B | 0 | 100 | 0 |
| C | 0 | 100 | 0 |
| D | 0 | 100 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 4901 | 8 | 0.163232% |
| B | 4901 | 8 | 0.163232% |
| C | 4901 | 7 | 0.142828% |
| D | 4901 | 40 | 0.816160% |
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 | 7056 | 4902 | 152 | 152 | 2.15% | 3.10% |  |
| B | 7056 | 4902 | 97 | 97 | 1.37% | 1.98% |  |
| C | 7056 | 4902 | 58 | 58 | 0.82% | 1.18% |  |
| D | 7056 | 4902 | 342 | 342 | 4.85% | 6.98% |  |
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 | 171 | 117525 | 338.1 | 1506 | 1485 | 343.2 |
| A | 13 | 160 | 59860 | 170.09 | 1506 | 1485 | 343.2 |
| A | 13 | 190 | 40557 | 113.84 | 1506 | 1485 | 343.2 |
| B | 7 | 221 | 211597 | 605.09 | 1471 | 1480 | 347.2 |
| B | 5 | 191 | 34192 | 94.2 | 1471 | 1480 | 347.2 |
| B | 0 | 220 | 25027 | 67.81 | 1471 | 1480 | 347.2 |
| C | 1 | 1 | 195004 | 517.79 | 1334 | 1381 | 373.9 |
| C | 15 | 241 | 58433 | 152.57 | 1334 | 1381 | 373.9 |
| C | 3 | 159 | 7881 | 17.38 | 1334 | 1381 | 373.9 |
| D | 12 | 237 | 725575 | 1770.65 | 1304 | 1356 | 409.0 |
| D | 13 | 221 | 186202 | 451.93 | 1304 | 1356 | 409.0 |
| D | 1 | 4 | 170463 | 413.45 | 1304 | 1356 | 409.0 |
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 |  |