Observation information
- date-obs: 2018-04-27
- time-obs: 18:13:14.959600000
- date-end: 2018-04-27
- time-end: 20:28:31.955400000
- obs_id: A04_225T01_9000002062
- exposure: 5160.54524651
- 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_13953cztM0_level2.evt
| modeM0/AS1A04_225T01_9000002062_13953cztM0_level2_quad_clean.evt
|
| Size (bytes) | 522,201,600 | 111,660,480 |
| Size | 498.0 MB
| 106.5 MB
|
| Events in quadrant A | 3,136,948 | 743,041 |
| Events in quadrant B | 3,399,533 | 777,187 |
| Events in quadrant C | 3,189,101 | 749,009 |
| Events in quadrant D | 5,669,385 | 679,739 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 128 | 0 |
| B | 0 | 128 | 0 |
| C | 0 | 128 | 0 |
| D | 0 | 128 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13261 | 3 |
| B | 0 | 14042 | 2 |
| C | 0 | 13246 | 2 |
| D | 0 | 21099 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18 | 0 |
| B | 0 | 18 | 0 |
| C | 0 | 18 | 0 |
| D | 0 | 19 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6192 | 70 | 1.130491% |
| B | 6192 | 93 | 1.501938% |
| C | 6192 | 31 | 0.500646% |
| D | 6192 | 298 | 4.812661% |
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 | 7528 | 6194 | 2 | 2 | 0.03% | 0.03% |  |
| B | 7528 | 6194 | 7 | 7 | 0.09% | 0.11% |  |
| C | 7528 | 6194 | 1 | 1 | 0.01% | 0.02% |  |
| D | 7528 | 6194 | 205 | 205 | 2.72% | 3.31% |  |
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 | 35275 | 217.82 | 788 | 771 | 158.4 |
| A | 1 | 162 | 24001 | 146.65 | 788 | 771 | 158.4 |
| A | 12 | 96 | 20364 | 123.69 | 788 | 771 | 158.4 |
| B | 0 | 189 | 107147 | 721.13 | 802 | 782 | 147.5 |
| B | 3 | 64 | 37349 | 247.92 | 802 | 782 | 147.5 |
| B | 0 | 190 | 32905 | 217.79 | 802 | 782 | 147.5 |
| C | 3 | 233 | 169069 | 956.4 | 773 | 782 | 176.0 |
| C | 0 | 207 | 7141 | 36.14 | 773 | 782 | 176.0 |
| C | 13 | 61 | 5613 | 27.46 | 773 | 782 | 176.0 |
| D | 13 | 122 | 1546344 | 8069.54 | 742 | 726 | 191.5 |
| D | 7 | 80 | 368277 | 1918.95 | 742 | 726 | 191.5 |
| D | 8 | 195 | 255107 | 1328.1 | 742 | 726 | 191.5 |
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 |  |