Observation information
- date-obs: 2015-10-10
- time-obs: 01:57:00.970200000
- date-end: 2015-10-10
- time-end: 03:56:50.958200000
- obs_id: P01_134T04_9000000012
- exposure: 3480.67563642
- sourceid: Crab on null 4
- observer: santoshv
- ra_pnt: 89.8982082886
- dec_pnt: 22.1871651263
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1P01_134T04_9000000012_00178cztM0_level2.evt
| modeM0/AS1P01_134T04_9000000012_00178cztM0_level2_quad_clean.evt
|
| Size (bytes) | 693,429,120 | 52,128,000 |
| Size | 661.3 MB
| 49.7 MB
|
| Events in quadrant A | 5,281,869 | 310,441 |
| Events in quadrant B | 5,261,738 | 315,976 |
| Events in quadrant C | 4,944,739 | 315,138 |
| Events in quadrant D | 5,197,821 | 306,374 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16 | 11 |
| B | 0 | 15 | 11 |
| C | 0 | 16 | 10 |
| D | 0 | 16 | 10 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 114 | 18 |
| B | 0 | 114 | 16 |
| C | 0 | 114 | 18 |
| D | 0 | 114 | 12 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 23881 | 4836 |
| B | 0 | 23937 | 4962 |
| C | 0 | 22192 | 4110 |
| D | 0 | 26049 | 7251 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 4692 | 4 | 0.085251% |
| B | 4676 | 5 | 0.106929% |
| C | 4726 | 31 | 0.655946% |
| D | 4661 | 102 | 2.188372% |
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 | 7191 | 4850 | 102 | 102 | 1.42% | 2.10% |  |
| B | 7191 | 4841 | 68 | 68 | 0.95% | 1.40% |  |
| C | 7191 | 4888 | 113 | 113 | 1.57% | 2.31% |  |
| D | 7191 | 4814 | 209 | 209 | 2.91% | 4.34% |  |
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 | 7 | 128 | 50539 | 171.4 | 1311 | 1304 | 287.3 |
| A | 14 | 10 | 46590 | 157.65 | 1311 | 1304 | 287.3 |
| A | 13 | 66 | 27284 | 90.44 | 1311 | 1304 | 287.3 |
| B | 10 | 199 | 200965 | 646.85 | 1308 | 1315 | 308.7 |
| B | 5 | 85 | 14371 | 42.3 | 1308 | 1315 | 308.7 |
| B | 5 | 216 | 11709 | 33.68 | 1308 | 1315 | 308.7 |
| C | 0 | 202 | 142472 | 428.51 | 1179 | 1221 | 329.6 |
| C | 9 | 201 | 61449 | 182.71 | 1179 | 1221 | 329.6 |
| C | 10 | 17 | 25512 | 73.69 | 1179 | 1221 | 329.6 |
| D | 2 | 121 | 215740 | 609.99 | 1145 | 1181 | 351.7 |
| D | 13 | 89 | 173089 | 488.73 | 1145 | 1181 | 351.7 |
| D | 2 | 63 | 145600 | 410.58 | 1145 | 1181 | 351.7 |
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 |  |