Observation information
- date-obs: 2017-09-09
- time-obs: 18:40:01.919600000
- date-end: 2017-09-09
- time-end: 20:34:44.914300000
- obs_id: A03_107T01_9000001530
- exposure: 961.61993397
- sourceid: 4U 1820-30
- observer: graman
- ra_pnt: 275.9188
- dec_pnt: -30.36128
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A03_107T01_9000001530_10549cztM0_level2.evt
| modeM0/AS1A03_107T01_9000001530_10549cztM0_level2_quad_clean.evt
|
| Size (bytes) | 125,994,240 | 21,960,000 |
| Size | 120.2 MB
| 20.9 MB
|
| Events in quadrant A | 860,861 | 143,594 |
| Events in quadrant B | 875,962 | 124,613 |
| Events in quadrant C | 877,955 | 156,616 |
| Events in quadrant D | 1,078,014 | 110,876 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 224 | 192 |
| B | 0 | 226 | 187 |
| C | 0 | 221 | 181 |
| D | 0 | 217 | 175 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 22 | 13 |
| B | 0 | 22 | 13 |
| C | 0 | 23 | 15 |
| D | 0 | 22 | 15 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 21936 | 18199 |
| B | 0 | 28729 | 25153 |
| C | 0 | 22273 | 18432 |
| D | 0 | 28505 | 24279 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 1806 | 6 | 0.332226% |
| B | 1571 | 10 | 0.636537% |
| C | 1908 | 1 | 0.052411% |
| D | 1698 | 5 | 0.294464% |
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 | 6651 | 2507 | 0 | 0 | 0.00% | 0.00% |  |
| B | 6344 | 2236 | 0 | 0 | 0.00% | 0.00% |  |
| C | 6620 | 2579 | 0 | 0 | 0.00% | 0.00% |  |
| D | 6652 | 2316 | 1 | 1 | 0.02% | 0.04% |  |
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 | 174 | 17708 | 382.35 | 216 | 211 | 45.8 |
| A | 8 | 5 | 3110 | 63.35 | 216 | 211 | 45.8 |
| A | 1 | 162 | 2819 | 56.99 | 216 | 211 | 45.8 |
| B | 4 | 239 | 108190 | 2817.32 | 192 | 187 | 38.3 |
| B | 4 | 81 | 5737 | 144.78 | 192 | 187 | 38.3 |
| B | 0 | 214 | 4268 | 106.46 | 192 | 187 | 38.3 |
| C | 4 | 175 | 2360 | 40.26 | 223 | 225 | 53.0 |
| C | 14 | 234 | 1701 | 27.84 | 223 | 225 | 53.0 |
| C | 13 | 61 | 1632 | 26.53 | 223 | 225 | 53.0 |
| D | 8 | 195 | 133693 | 2760.69 | 190 | 185 | 48.4 |
| D | 1 | 52 | 110626 | 2283.7 | 190 | 185 | 48.4 |
| D | 2 | 16 | 60032 | 1237.52 | 190 | 185 | 48.4 |
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 |  |