Observation information
- date-obs: 2017-10-02
- time-obs: 10:03:16.465400000
- date-end: 2017-10-02
- time-end: 12:07:16.468800000
- obs_id: A04_055T01_9000001574
- exposure: 4897.91752718
- sourceid: 4U 1636-536
- observer: sudip
- ra_pnt: 250.2312
- dec_pnt: -53.75139
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A04_055T01_9000001574_10884cztM0_level2.evt
| modeM0/AS1A04_055T01_9000001574_10884cztM0_level2_quad_clean.evt
|
| Size (bytes) | 531,927,360 | 104,045,760 |
| Size | 507.3 MB
| 99.2 MB
|
| Events in quadrant A | 4,094,313 | 685,172 |
| Events in quadrant B | 4,179,501 | 687,223 |
| Events in quadrant C | 3,679,275 | 680,036 |
| Events in quadrant D | 3,735,000 | 664,720 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16238 | 2 |
| B | 0 | 16424 | 1 |
| C | 0 | 15116 | 1 |
| D | 0 | 14922 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 126 | 0 |
| B | 0 | 126 | 0 |
| C | 0 | 126 | 0 |
| D | 0 | 126 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6215 | 314 | 5.052293% |
| B | 6215 | 320 | 5.148833% |
| C | 6215 | 271 | 4.360418% |
| D | 6215 | 109 | 1.753821% |
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 | 7440 | 6215 | 132 | 132 | 1.77% | 2.12% |  |
| B | 7440 | 6215 | 147 | 147 | 1.98% | 2.37% |  |
| C | 7440 | 6216 | 154 | 154 | 2.07% | 2.48% |  |
| D | 7440 | 6216 | 12 | 12 | 0.16% | 0.19% |  |
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 | 5 | 901250 | 5806.6 | 770 | 754 | 155.1 |
| A | 15 | 223 | 126925 | 813.58 | 770 | 754 | 155.1 |
| A | 15 | 239 | 55657 | 354.03 | 770 | 754 | 155.1 |
| B | 4 | 239 | 1099281 | 7649.53 | 762 | 745 | 143.6 |
| B | 0 | 219 | 39665 | 271.02 | 762 | 745 | 143.6 |
| B | 0 | 214 | 23916 | 161.35 | 762 | 745 | 143.6 |
| C | 4 | 254 | 760942 | 4528.25 | 731 | 734 | 167.9 |
| C | 0 | 207 | 56446 | 331.85 | 731 | 734 | 167.9 |
| C | 13 | 61 | 5472 | 28.22 | 731 | 734 | 167.9 |
| D | 8 | 195 | 308725 | 1738.26 | 752 | 732 | 177.2 |
| D | 1 | 52 | 289948 | 1632.28 | 752 | 732 | 177.2 |
| D | 5 | 222 | 85052 | 475.89 | 752 | 732 | 177.2 |
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 |  |