Observation information
- date-obs: 2017-02-27
- time-obs: 06:52:04.500500000
- date-end: 2017-02-27
- time-end: 09:58:19.479800000
- obs_id: A02_029T01_9000001058
- exposure: 4481.84148277
- sourceid: 4U 1724-30
- observer: sudip
- ra_pnt: 261.8885
- dec_pnt: -30.80206
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A02_029T01_9000001058_07671cztM0_level2.evt
| modeM0/AS1A02_029T01_9000001058_07671cztM0_level2_quad_clean.evt
|
| Size (bytes) | 606,585,600 | 107,199,360 |
| Size | 578.5 MB
| 102.2 MB
|
| Events in quadrant A | 4,265,215 | 671,349 |
| Events in quadrant B | 4,526,399 | 680,572 |
| Events in quadrant C | 4,204,755 | 667,045 |
| Events in quadrant D | 4,796,663 | 635,894 |
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 | 27 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17712 | 3 |
| B | 0 | 18458 | 2 |
| C | 0 | 17706 | 2 |
| D | 0 | 19547 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 174 | 0 |
| B | 0 | 174 | 0 |
| C | 0 | 174 | 0 |
| D | 0 | 174 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 8520 | 74 | 0.868545% |
| B | 8520 | 129 | 1.514085% |
| C | 8520 | 59 | 0.692488% |
| D | 8520 | 153 | 1.795775% |
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 | 11175 | 8522 | 0 | 0 | 0.00% | 0.00% |  |
| B | 11175 | 8522 | 12 | 12 | 0.11% | 0.14% |  |
| C | 11175 | 8522 | 0 | 0 | 0.00% | 0.00% |  |
| D | 11175 | 8522 | 78 | 78 | 0.70% | 0.92% |  |
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 | 0 | 226 | 10766 | 43.3 | 1107 | 1086 | 223.6 |
| A | 12 | 194 | 9796 | 38.96 | 1107 | 1086 | 223.6 |
| A | 15 | 234 | 4867 | 16.91 | 1107 | 1086 | 223.6 |
| B | 4 | 239 | 56955 | 271.35 | 1101 | 1077 | 205.9 |
| B | 10 | 245 | 42647 | 201.87 | 1101 | 1077 | 205.9 |
| B | 0 | 214 | 41044 | 194.09 | 1101 | 1077 | 205.9 |
| C | 13 | 61 | 8232 | 28.73 | 1074 | 1082 | 248.9 |
| C | 9 | 68 | 5923 | 19.45 | 1074 | 1082 | 248.9 |
| C | 8 | 222 | 5069 | 16.02 | 1074 | 1082 | 248.9 |
| D | 12 | 0 | 318456 | 1210.14 | 1079 | 1050 | 262.3 |
| D | 5 | 233 | 91105 | 343.34 | 1079 | 1050 | 262.3 |
| D | 2 | 152 | 88963 | 335.18 | 1079 | 1050 | 262.3 |
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 |  |