Observation information
- date-obs: 2018-03-08
- time-obs: 18:19:49.655000000
- date-end: 2018-03-08
- time-end: 20:20:27.657600000
- obs_id: A04_216T01_9000001968
- exposure: 4611.1224746
- sourceid: Cen X-3
- observer: shivangi
- ra_pnt: 170.3158
- dec_pnt: -60.62297
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A04_216T01_9000001968_13213cztM0_level2.evt
| modeM0/AS1A04_216T01_9000001968_13213cztM0_level2_quad_clean.evt
|
| Size (bytes) | 435,144,960 | 96,327,360 |
| Size | 415.0 MB
| 91.9 MB
|
| Events in quadrant A | 2,870,074 | 641,918 |
| Events in quadrant B | 3,400,258 | 652,119 |
| Events in quadrant C | 2,737,608 | 635,507 |
| Events in quadrant D | 3,766,136 | 572,182 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12423 | 1 |
| B | 0 | 13953 | 0 |
| C | 0 | 12152 | 0 |
| D | 0 | 15406 | 0 |
| 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 | 122 | 0 |
| B | 0 | 122 | 0 |
| C | 0 | 122 | 0 |
| D | 0 | 122 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5943 | 14 | 0.235571% |
| B | 5943 | 142 | 2.389366% |
| C | 5943 | 5 | 0.084133% |
| D | 5943 | 271 | 4.559987% |
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 | 7239 | 5945 | 1 | 1 | 0.01% | 0.02% |  |
| B | 7239 | 5945 | 89 | 89 | 1.23% | 1.50% |  |
| C | 7239 | 5945 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7239 | 5945 | 214 | 214 | 2.96% | 3.60% |  |
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 | 8 | 15 | 45529 | 308.0 | 719 | 706 | 145.5 |
| A | 1 | 162 | 29711 | 199.31 | 719 | 706 | 145.5 |
| A | 1 | 178 | 9538 | 60.69 | 719 | 706 | 145.5 |
| B | 4 | 239 | 461268 | 3399.8 | 725 | 710 | 135.5 |
| B | 3 | 209 | 46761 | 339.94 | 725 | 710 | 135.5 |
| B | 0 | 189 | 15071 | 106.01 | 725 | 710 | 135.5 |
| C | 15 | 208 | 15744 | 94.56 | 696 | 702 | 159.1 |
| C | 14 | 234 | 6043 | 33.57 | 696 | 702 | 159.1 |
| C | 13 | 61 | 5209 | 28.33 | 696 | 702 | 159.1 |
| D | 13 | 122 | 759707 | 4770.39 | 666 | 647 | 159.1 |
| D | 1 | 52 | 319425 | 2003.39 | 666 | 647 | 159.1 |
| D | 9 | 85 | 59515 | 369.96 | 666 | 647 | 159.1 |
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 |  |