Observation information
- date-obs: 2018-04-28
- time-obs: 11:44:54.942400000
- date-end: 2018-04-28
- time-end: 13:57:00.939600000
- obs_id: A04_225T01_9000002062
- exposure: 3262.10891849
- 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_13963cztM0_level2.evt
| modeM0/AS1A04_225T01_9000002062_13963cztM0_level2_quad_clean.evt
|
| Size (bytes) | 453,047,040 | 69,373,440 |
| Size | 432.1 MB
| 66.2 MB
|
| Events in quadrant A | 3,214,424 | 412,557 |
| Events in quadrant B | 3,365,204 | 422,589 |
| Events in quadrant C | 3,211,084 | 410,564 |
| Events in quadrant D | 3,480,721 | 393,847 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 134 | 0 |
| B | 0 | 134 | 0 |
| C | 0 | 134 | 0 |
| D | 0 | 134 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13911 | 3 |
| B | 0 | 14318 | 2 |
| C | 0 | 13827 | 2 |
| D | 0 | 14864 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13 | 0 |
| B | 0 | 13 | 0 |
| C | 0 | 13 | 0 |
| D | 0 | 14 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6610 | 70 | 1.059002% |
| B | 6610 | 72 | 1.089259% |
| C | 6610 | 48 | 0.726172% |
| D | 6610 | 83 | 1.255673% |
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 | 7706 | 6612 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7706 | 6612 | 5 | 5 | 0.06% | 0.08% |  |
| C | 7706 | 6612 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7706 | 6612 | 24 | 24 | 0.31% | 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 | 15 | 222 | 26201 | 154.19 | 815 | 797 | 164.8 |
| A | 8 | 15 | 26120 | 153.7 | 815 | 797 | 164.8 |
| A | 1 | 162 | 16237 | 93.71 | 815 | 797 | 164.8 |
| B | 0 | 189 | 48572 | 310.12 | 817 | 797 | 154.1 |
| B | 3 | 209 | 33793 | 214.19 | 817 | 797 | 154.1 |
| B | 10 | 247 | 26645 | 167.79 | 817 | 797 | 154.1 |
| C | 3 | 233 | 91346 | 495.92 | 791 | 794 | 182.6 |
| C | 8 | 222 | 16196 | 84.35 | 791 | 794 | 182.6 |
| C | 8 | 128 | 11092 | 56.4 | 791 | 794 | 182.6 |
| D | 13 | 189 | 122124 | 641.36 | 789 | 766 | 189.2 |
| D | 10 | 157 | 115967 | 608.82 | 789 | 766 | 189.2 |
| D | 1 | 52 | 62279 | 325.09 | 789 | 766 | 189.2 |
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 |  |