Observation information
- date-obs: 2016-09-30
- time-obs: 17:33:17.760800000
- date-end: 2016-09-30
- time-end: 18:05:13.760000000
- obs_id: G05_204T01_9000000688
- exposure: 1578.60051204
- sourceid: Holmberg II X-1
- observer: jmurthy
- ra_pnt: 124.8742
- dec_pnt: 70.70506
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1G05_204T01_9000000688_05457cztM0_level2.evt
| modeM0/AS1G05_204T01_9000000688_05457cztM0_level2_quad_clean.evt
|
| Size (bytes) | 144,512,640 | 30,061,440 |
| Size | 137.8 MB
| 28.7 MB
|
| Events in quadrant A | 829,836 | 201,773 |
| Events in quadrant B | 1,372,188 | 202,468 |
| Events in quadrant C | 948,647 | 199,755 |
| Events in quadrant D | 1,115,403 | 188,473 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 3415 | 1 |
| B | 0 | 5234 | 1 |
| C | 0 | 3789 | 1 |
| D | 0 | 4437 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 32 | 0 |
| B | 0 | 32 | 0 |
| C | 0 | 32 | 0 |
| D | 0 | 32 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 3 | 0 |
| B | 0 | 3 | 0 |
| C | 0 | 3 | 0 |
| D | 0 | 4 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 1593 | 6 | 0.376648% |
| B | 1593 | 34 | 2.134338% |
| C | 1593 | 35 | 2.197112% |
| D | 1593 | 30 | 1.883239% |
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 | 1593 | 1593 | 2 | 2 | 0.13% | 0.13% |  |
| B | 1593 | 1593 | 13 | 13 | 0.82% | 0.82% |  |
| C | 1593 | 1593 | 21 | 21 | 1.32% | 1.32% |  |
| D | 1593 | 1593 | 14 | 14 | 0.88% | 0.88% |  |
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 | 0 | 50 | 11123 | 248.05 | 211 | 206 | 44.0 |
| A | 12 | 194 | 2214 | 45.63 | 211 | 206 | 44.0 |
| A | 0 | 226 | 2151 | 44.19 | 211 | 206 | 44.0 |
| B | 15 | 204 | 463719 | 11196.25 | 212 | 208 | 41.4 |
| B | 11 | 51 | 41121 | 988.27 | 212 | 208 | 41.4 |
| B | 0 | 219 | 30689 | 736.28 | 212 | 208 | 41.4 |
| C | 9 | 247 | 118388 | 2421.65 | 208 | 210 | 48.8 |
| C | 14 | 67 | 14639 | 295.67 | 208 | 210 | 48.8 |
| C | 13 | 61 | 1753 | 31.62 | 208 | 210 | 48.8 |
| D | 2 | 33 | 156838 | 2994.28 | 208 | 200 | 52.3 |
| D | 8 | 195 | 53028 | 1009.86 | 208 | 200 | 52.3 |
| D | 12 | 110 | 49491 | 942.24 | 208 | 200 | 52.3 |
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 |  |