Observation information
- date-obs: 2019-05-07
- time-obs: 09:27:53.295200000
- date-end: 2019-05-07
- time-end: 11:36:45.297400000
- obs_id: A05_062T01_9000002892
- exposure: 2952.14945398
- sourceid: 4U 1735-44
- observer: graman
- ra_pnt: 264.7429
- dec_pnt: -44.45
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A05_062T01_9000002892_19498cztM0_level2.evt
| modeM0/AS1A05_062T01_9000002892_19498cztM0_level2_quad_clean.evt
|
| Size (bytes) | 547,608,960 | 73,347,840 |
| Size | 522.2 MB
| 69.9 MB
|
| Events in quadrant A | 3,659,790 | 449,063 |
| Events in quadrant B | 3,765,047 | 459,106 |
| Events in quadrant C | 4,082,439 | 433,244 |
| Events in quadrant D | 4,635,738 | 425,047 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13 | 0 |
| B | 0 | 13 | 0 |
| C | 0 | 13 | 0 |
| D | 0 | 13 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 132 | 0 |
| B | 0 | 132 | 0 |
| C | 0 | 132 | 0 |
| D | 0 | 132 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14687 | 2 |
| B | 0 | 15255 | 2 |
| C | 0 | 16316 | 2 |
| D | 0 | 18012 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6512 | 242 | 3.716216% |
| B | 6512 | 160 | 2.457002% |
| C | 6512 | 216 | 3.316953% |
| D | 6513 | 358 | 5.496699% |
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 | 7732 | 6512 | 105 | 105 | 1.36% | 1.61% |  |
| B | 7732 | 6512 | 11 | 11 | 0.14% | 0.17% |  |
| C | 7732 | 6512 | 18 | 18 | 0.23% | 0.28% |  |
| D | 7733 | 6513 | 198 | 198 | 2.56% | 3.04% |  |
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 | 5 | 16 | 279743 | 1589.39 | 875 | 860 | 175.5 |
| A | 13 | 254 | 10068 | 52.48 | 875 | 860 | 175.5 |
| A | 11 | 47 | 7647 | 38.68 | 875 | 860 | 175.5 |
| B | 0 | 189 | 140120 | 871.77 | 869 | 851 | 159.8 |
| B | 4 | 171 | 56186 | 346.38 | 869 | 851 | 159.8 |
| B | 0 | 244 | 47351 | 291.07 | 869 | 851 | 159.8 |
| C | 7 | 247 | 255027 | 1322.73 | 834 | 841 | 192.2 |
| C | 3 | 233 | 215952 | 1119.39 | 834 | 841 | 192.2 |
| C | 9 | 221 | 138052 | 714.02 | 834 | 841 | 192.2 |
| D | 12 | 218 | 714826 | 3505.47 | 846 | 823 | 203.7 |
| D | 1 | 52 | 419549 | 2055.78 | 846 | 823 | 203.7 |
| D | 7 | 238 | 215304 | 1053.02 | 846 | 823 | 203.7 |
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 |  |