Observation information
- date-obs: 2020-02-08
- time-obs: 09:36:59.122200000
- date-end: 2020-02-08
- time-end: 11:49:58.125200000
- obs_id: A07_054T01_9000003486
- exposure: 7730.21888795
- sourceid: Holmber II X-1
- observer: rita
- ra_pnt: 124.8708
- dec_pnt: 70.70536
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A07_054T01_9000003486_23598cztM0_level2.evt
| modeM0/AS1A07_054T01_9000003486_23598cztM0_level2_quad_clean.evt
|
| Size (bytes) | 525,182,400 | 144,711,360 |
| Size | 500.9 MB
| 138.0 MB
|
| Events in quadrant A | 3,573,946 | 988,835 |
| Events in quadrant B | 4,110,409 | 989,881 |
| Events in quadrant C | 3,617,996 | 939,788 |
| Events in quadrant D | 4,072,503 | 921,746 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 160 | 0 |
| B | 0 | 160 | 0 |
| C | 0 | 160 | 0 |
| D | 0 | 160 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 2 | 0 |
| B | 0 | 2 | 0 |
| C | 0 | 2 | 0 |
| D | 0 | 2 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15915 | 1 |
| B | 0 | 17147 | 1 |
| C | 0 | 15969 | 1 |
| D | 0 | 17538 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7805 | 157 | 2.011531% |
| B | 7805 | 215 | 2.754644% |
| C | 7805 | 173 | 2.216528% |
| D | 7805 | 227 | 2.908392% |
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 | 7980 | 7805 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7980 | 7806 | 31 | 31 | 0.39% | 0.40% |  |
| C | 7980 | 7806 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7980 | 7806 | 116 | 116 | 1.45% | 1.49% |  |
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 | 13 | 254 | 13604 | 68.19 | 926 | 904 | 186.2 |
| A | 3 | 137 | 8137 | 38.84 | 926 | 904 | 186.2 |
| A | 0 | 226 | 7902 | 37.57 | 926 | 904 | 186.2 |
| B | 3 | 64 | 226368 | 1292.95 | 915 | 890 | 174.4 |
| B | 0 | 189 | 147002 | 837.84 | 915 | 890 | 174.4 |
| B | 0 | 230 | 41454 | 232.6 | 915 | 890 | 174.4 |
| C | 14 | 238 | 139746 | 683.7 | 875 | 878 | 203.1 |
| C | 7 | 247 | 20210 | 95.18 | 875 | 878 | 203.1 |
| C | 8 | 128 | 16194 | 75.41 | 875 | 878 | 203.1 |
| D | 1 | 52 | 563848 | 2617.43 | 886 | 860 | 215.1 |
| D | 12 | 233 | 89530 | 412.24 | 886 | 860 | 215.1 |
| D | 2 | 234 | 31995 | 144.75 | 886 | 860 | 215.1 |
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 |  |