Observation information
- date-obs: 2016-11-24
- time-obs: 07:21:37.121400000
- date-end: 2016-11-24
- time-end: 08:01:25.119400000
- obs_id: C02_018T01_9000000822
- exposure: 804.346898593
- sourceid: Crab
- observer: ravibt
- ra_pnt: 310.9978
- dec_pnt: -16.051
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1C02_018T01_9000000822_06264cztM0_level2.evt
| modeM0/AS1C02_018T01_9000000822_06264cztM0_level2_quad_clean.evt
|
| Size (bytes) | 121,216,320 | 17,778,240 |
| Size | 115.6 MB
| 17.0 MB
|
| Events in quadrant A | 805,290 | 107,636 |
| Events in quadrant B | 858,748 | 110,629 |
| Events in quadrant C | 727,411 | 112,012 |
| Events in quadrant D | 1,183,271 | 104,526 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 28 | 0 |
| B | 0 | 28 | 0 |
| C | 0 | 28 | 0 |
| D | 0 | 28 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 3224 | 2 |
| B | 0 | 3389 | 1 |
| C | 0 | 2947 | 1 |
| D | 0 | 4411 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11 | 0 |
| B | 0 | 11 | 0 |
| C | 0 | 11 | 0 |
| D | 0 | 11 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 1385 | 17 | 1.227437% |
| B | 1385 | 34 | 2.454874% |
| C | 1385 | 4 | 0.288809% |
| D | 1385 | 116 | 8.375451% |
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 | 1385 | 1385 | 0 | 0 | 0.00% | 0.00% |  |
| B | 1385 | 1385 | 13 | 13 | 0.94% | 0.94% |  |
| C | 1385 | 1385 | 0 | 0 | 0.00% | 0.00% |  |
| D | 1385 | 1385 | 85 | 85 | 6.14% | 6.14% |  |
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 | 3 | 80 | 53724 | 1309.04 | 193 | 190 | 40.9 |
| A | 8 | 15 | 4905 | 115.29 | 193 | 190 | 40.9 |
| A | 0 | 226 | 1950 | 43.04 | 193 | 190 | 40.9 |
| B | 3 | 64 | 85188 | 2206.4 | 190 | 186 | 38.5 |
| B | 4 | 81 | 16609 | 426.29 | 190 | 186 | 38.5 |
| B | 11 | 51 | 12075 | 308.6 | 190 | 186 | 38.5 |
| C | 13 | 61 | 1446 | 28.23 | 186 | 186 | 44.6 |
| C | 8 | 222 | 705 | 11.63 | 186 | 186 | 44.6 |
| C | 3 | 202 | 474 | 6.45 | 186 | 186 | 44.6 |
| D | 12 | 220 | 315937 | 6833.18 | 182 | 176 | 46.2 |
| D | 2 | 63 | 98514 | 2128.06 | 182 | 176 | 46.2 |
| D | 2 | 152 | 29246 | 629.08 | 182 | 176 | 46.2 |
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 |  |