Observation information
- date-obs: 2018-05-15
- time-obs: 06:04:54.531900000
- date-end: 2018-05-15
- time-end: 08:13:44.526100000
- obs_id: G08_084T01_9000002100
- exposure: 4626.81521726
- sourceid: 4U 1626-67
- observer: Kmukerjee
- ra_pnt: 248.07
- dec_pnt: -67.46091
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1G08_084T01_9000002100_14212cztM0_level2.evt
| modeM0/AS1G08_084T01_9000002100_14212cztM0_level2_quad_clean.evt
|
| Size (bytes) | 472,608,000 | 107,354,880 |
| Size | 450.7 MB
| 102.4 MB
|
| Events in quadrant A | 3,220,167 | 716,221 |
| Events in quadrant B | 3,306,991 | 725,852 |
| Events in quadrant C | 3,241,454 | 702,832 |
| Events in quadrant D | 4,121,587 | 671,587 |
Level1 data integrity
| 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 | 13448 | 3 |
| B | 0 | 13625 | 2 |
| C | 0 | 13636 | 2 |
| D | 0 | 16284 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14 | 0 |
| B | 0 | 14 | 0 |
| C | 0 | 14 | 0 |
| D | 0 | 15 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6223 | 64 | 1.028443% |
| B | 6223 | 77 | 1.237345% |
| C | 6223 | 57 | 0.915957% |
| D | 6223 | 190 | 3.053190% |
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 | 7434 | 6225 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7434 | 6225 | 0 | 0 | 0.00% | 0.00% |  |
| C | 7434 | 6225 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7434 | 6225 | 92 | 92 | 1.24% | 1.48% |  |
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 | 63260 | 387.68 | 811 | 794 | 161.1 |
| A | 8 | 15 | 31844 | 192.7 | 811 | 794 | 161.1 |
| A | 0 | 226 | 7191 | 39.7 | 811 | 794 | 161.1 |
| B | 4 | 97 | 42273 | 279.48 | 808 | 791 | 148.4 |
| B | 0 | 189 | 27616 | 180.73 | 808 | 791 | 148.4 |
| B | 0 | 219 | 26564 | 173.64 | 808 | 791 | 148.4 |
| C | 3 | 233 | 147281 | 812.26 | 794 | 800 | 180.3 |
| C | 13 | 61 | 5651 | 26.9 | 794 | 800 | 180.3 |
| C | 3 | 203 | 1884 | 6.01 | 794 | 800 | 180.3 |
| D | 5 | 222 | 399543 | 2158.35 | 785 | 768 | 184.8 |
| D | 8 | 195 | 367776 | 1986.41 | 785 | 768 | 184.8 |
| D | 10 | 199 | 241086 | 1300.71 | 785 | 768 | 184.8 |
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 |  |