Observation information
- date-obs: 2016-11-24
- time-obs: 22:42:22.115900000
- date-end: 2016-11-25
- time-end: 03:13:15.113100000
- obs_id: C02_018T02_9000000824
- exposure: 8422.09206148
- sourceid: Crab
- observer: ravibt
- ra_pnt: 340.1654
- dec_pnt: -6.418306
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1C02_018T02_9000000824_06275cztM0_level2.evt
| modeM0/AS1C02_018T02_9000000824_06275cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,159,329,600 | 168,030,720 |
| Size | 1.1 GB
| 160.2 MB
|
| Events in quadrant A | 9,203,441 | 1,012,084 |
| Events in quadrant B | 8,068,234 | 1,031,214 |
| Events in quadrant C | 6,496,484 | 1,053,022 |
| Events in quadrant D | 10,357,630 | 985,660 |
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 | 17 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 36611 | 4 |
| B | 0 | 33612 | 3 |
| C | 0 | 29699 | 3 |
| D | 0 | 40633 | 3 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 296 | 0 |
| B | 0 | 296 | 0 |
| C | 0 | 296 | 0 |
| D | 0 | 296 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 14588 | 255 | 1.748012% |
| B | 14588 | 349 | 2.392377% |
| C | 14588 | 90 | 0.616945% |
| D | 14588 | 630 | 4.318618% |
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 | 16253 | 14589 | 38 | 38 | 0.23% | 0.26% |  |
| B | 16253 | 14589 | 156 | 156 | 0.96% | 1.07% |  |
| C | 16253 | 14591 | 0 | 0 | 0.00% | 0.00% |  |
| D | 16253 | 14589 | 520 | 520 | 3.20% | 3.56% |  |
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 | 8 | 15 | 1938564 | 5608.26 | 1686 | 1644 | 345.4 |
| A | 15 | 236 | 519117 | 1498.32 | 1686 | 1644 | 345.4 |
| A | 13 | 251 | 220986 | 635.09 | 1686 | 1644 | 345.4 |
| B | 3 | 64 | 715361 | 2159.09 | 1707 | 1667 | 330.6 |
| B | 0 | 219 | 269695 | 810.85 | 1707 | 1667 | 330.6 |
| B | 4 | 81 | 267397 | 803.89 | 1707 | 1667 | 330.6 |
| C | 8 | 128 | 14245 | 32.78 | 1654 | 1664 | 383.8 |
| C | 13 | 61 | 13380 | 30.53 | 1654 | 1664 | 383.8 |
| C | 9 | 54 | 11708 | 26.17 | 1654 | 1664 | 383.8 |
| D | 12 | 220 | 2558843 | 6358.43 | 1631 | 1582 | 402.2 |
| D | 12 | 221 | 353662 | 875.42 | 1631 | 1582 | 402.2 |
| D | 2 | 152 | 352191 | 871.76 | 1631 | 1582 | 402.2 |
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 |  |