Observation information
- date-obs: 2018-01-21
- time-obs: 09:15:59.439300000
- date-end: 2018-01-21
- time-end: 11:23:50.432400000
- obs_id: A04_230T01_9000001854
- exposure: 5044.60698926
- 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_9000001854_12526cztM0_level2.evt
| modeM0/AS1A04_230T01_9000001854_12526cztM0_level2_quad_clean.evt
|
| Size (bytes) | 522,152,640 | 98,398,080 |
| Size | 498.0 MB
| 93.8 MB
|
| Events in quadrant A | 3,562,771 | 633,733 |
| Events in quadrant B | 3,441,254 | 644,386 |
| Events in quadrant C | 3,260,360 | 628,641 |
| Events in quadrant D | 5,052,912 | 564,442 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 4 | 0 |
| B | 0 | 4 | 0 |
| C | 0 | 4 | 0 |
| D | 0 | 4 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 148 | 0 |
| B | 0 | 148 | 0 |
| C | 0 | 148 | 0 |
| D | 0 | 148 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15065 | 2 |
| B | 0 | 15053 | 1 |
| C | 0 | 14840 | 1 |
| D | 0 | 20092 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7306 | 67 | 0.917054% |
| B | 7306 | 63 | 0.862305% |
| C | 7306 | 53 | 0.725431% |
| D | 7306 | 531 | 7.267999% |
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 | 7672 | 7308 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7672 | 7308 | 1 | 1 | 0.01% | 0.01% |  |
| C | 7672 | 7308 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7672 | 7308 | 440 | 440 | 5.74% | 6.02% |  |
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 | 12 | 189 | 72735 | 414.24 | 852 | 832 | 173.6 |
| A | 1 | 162 | 64406 | 366.26 | 852 | 832 | 173.6 |
| A | 8 | 15 | 50058 | 283.6 | 852 | 832 | 173.6 |
| B | 4 | 239 | 82438 | 495.54 | 849 | 827 | 164.7 |
| B | 0 | 214 | 21881 | 127.84 | 849 | 827 | 164.7 |
| B | 12 | 111 | 19216 | 111.66 | 849 | 827 | 164.7 |
| C | 3 | 233 | 30994 | 157.28 | 821 | 824 | 191.8 |
| C | 15 | 208 | 15795 | 78.04 | 821 | 824 | 191.8 |
| C | 8 | 128 | 7194 | 33.21 | 821 | 824 | 191.8 |
| D | 10 | 199 | 824484 | 4348.14 | 786 | 765 | 189.4 |
| D | 1 | 52 | 689708 | 3636.7 | 786 | 765 | 189.4 |
| D | 10 | 157 | 276680 | 1456.46 | 786 | 765 | 189.4 |
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 |  |