Observation information
- date-obs: 2018-09-18
- time-obs: 09:23:32.697600000
- date-end: 2018-09-18
- time-end: 11:29:17.064800000
- obs_id: A04_230T01_9000002374
- exposure: 4919.09920719
- sourceid: Her X-1
- observer: sumanbala
- ra_pnt: 254.4575
- dec_pnt: 35.34233
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A04_230T01_9000002374_16079cztM0_level2.evt
| modeM0/AS1A04_230T01_9000002374_16079cztM0_level2_quad_clean.evt
|
| Size (bytes) | 464,454,720 | 108,152,640 |
| Size | 442.9 MB
| 103.1 MB
|
| Events in quadrant A | 3,422,023 | 735,484 |
| Events in quadrant B | 3,605,440 | 730,381 |
| Events in quadrant C | 3,300,133 | 682,476 |
| Events in quadrant D | 3,308,028 | 685,084 |
Level1 data integrity
| 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 | 128 | 0 |
| B | 0 | 128 | 0 |
| C | 0 | 128 | 0 |
| D | 0 | 128 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14284 | 3 |
| B | 0 | 14699 | 2 |
| C | 0 | 13748 | 2 |
| D | 0 | 13950 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6339 | 82 | 1.293579% |
| B | 6339 | 133 | 2.098123% |
| C | 6339 | 91 | 1.435558% |
| D | 6340 | 73 | 1.151420% |
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 | 7545 | 6340 | 9 | 9 | 0.12% | 0.14% |  |
| B | 7545 | 6340 | 36 | 36 | 0.48% | 0.57% |  |
| C | 7545 | 6340 | 1 | 1 | 0.01% | 0.02% |  |
| D | 7546 | 6341 | 16 | 16 | 0.21% | 0.25% |  |
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 | 239 | 157624 | 936.89 | 839 | 825 | 167.4 |
| A | 12 | 96 | 23004 | 132.52 | 839 | 825 | 167.4 |
| A | 9 | 143 | 12780 | 71.43 | 839 | 825 | 167.4 |
| B | 7 | 220 | 137126 | 869.28 | 826 | 805 | 156.8 |
| B | 0 | 190 | 77525 | 489.22 | 826 | 805 | 156.8 |
| B | 3 | 209 | 55078 | 346.08 | 826 | 805 | 156.8 |
| C | 14 | 238 | 123087 | 681.72 | 783 | 789 | 179.4 |
| C | 3 | 233 | 67333 | 370.93 | 783 | 789 | 179.4 |
| C | 0 | 207 | 48788 | 267.56 | 783 | 789 | 179.4 |
| D | 1 | 52 | 167090 | 846.0 | 809 | 786 | 196.6 |
| D | 2 | 234 | 25094 | 123.66 | 809 | 786 | 196.6 |
| D | 5 | 222 | 23349 | 114.78 | 809 | 786 | 196.6 |
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 |  |