Observation information
- date-obs: 2018-04-28
- time-obs: 21:40:05.936800000
- date-end: 2018-04-29
- time-end: 00:26:54.935500000
- obs_id: A04_225T01_9000002062
- exposure: 5162.17115547
- sourceid: 4U 1702-429
- observer: navinsridhar
- ra_pnt: 256.5638
- dec_pnt: -43.03575
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A04_225T01_9000002062_13970cztM0_level2.evt
| modeM0/AS1A04_225T01_9000002062_13970cztM0_level2_quad_clean.evt
|
| Size (bytes) | 550,399,680 | 105,998,400 |
| Size | 524.9 MB
| 101.1 MB
|
| Events in quadrant A | 4,061,708 | 664,158 |
| Events in quadrant B | 4,052,824 | 692,519 |
| Events in quadrant C | 3,868,535 | 667,124 |
| Events in quadrant D | 4,144,478 | 631,538 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 164 | 0 |
| B | 0 | 164 | 0 |
| C | 0 | 164 | 0 |
| D | 0 | 164 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17410 | 3 |
| B | 0 | 17291 | 2 |
| C | 0 | 16532 | 2 |
| D | 0 | 17523 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 20 | 0 |
| B | 0 | 20 | 0 |
| C | 0 | 20 | 0 |
| D | 0 | 20 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7979 | 79 | 0.990099% |
| B | 7979 | 86 | 1.077829% |
| C | 7979 | 26 | 0.325855% |
| D | 7979 | 57 | 0.714375% |
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 | 10010 | 7982 | 27 | 27 | 0.27% | 0.34% |  |
| B | 10010 | 7982 | 7 | 7 | 0.07% | 0.09% |  |
| C | 10010 | 7982 | 0 | 0 | 0.00% | 0.00% |  |
| D | 10010 | 7982 | 29 | 29 | 0.29% | 0.36% |  |
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 | 14 | 111 | 268614 | 1374.38 | 958 | 939 | 194.8 |
| A | 15 | 222 | 33935 | 169.42 | 958 | 939 | 194.8 |
| A | 1 | 162 | 31825 | 158.58 | 958 | 939 | 194.8 |
| B | 10 | 245 | 63848 | 346.43 | 972 | 947 | 181.6 |
| B | 0 | 189 | 46467 | 250.7 | 972 | 947 | 181.6 |
| B | 4 | 80 | 44482 | 239.77 | 972 | 947 | 181.6 |
| C | 3 | 233 | 163420 | 746.65 | 946 | 949 | 217.6 |
| C | 12 | 4 | 8334 | 33.94 | 946 | 949 | 217.6 |
| C | 13 | 61 | 6728 | 26.56 | 946 | 949 | 217.6 |
| D | 8 | 195 | 176717 | 714.28 | 923 | 905 | 246.1 |
| D | 13 | 189 | 86282 | 346.86 | 923 | 905 | 246.1 |
| D | 1 | 52 | 76584 | 307.46 | 923 | 905 | 246.1 |
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 |  |