Observation information
- date-obs: 2018-05-16
- time-obs: 00:59:36.522200000
- date-end: 2018-05-16
- time-end: 03:27:18.520900000
- obs_id: G08_084T01_9000002100
- exposure: 5605.04634427
- 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_14223cztM0_level2.evt
| modeM0/AS1G08_084T01_9000002100_14223cztM0_level2_quad_clean.evt
|
| Size (bytes) | 527,276,160 | 112,415,040 |
| Size | 502.8 MB
| 107.2 MB
|
| Events in quadrant A | 3,495,410 | 742,203 |
| Events in quadrant B | 4,104,965 | 747,172 |
| Events in quadrant C | 3,571,508 | 725,677 |
| Events in quadrant D | 4,319,754 | 699,766 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 146 | 0 |
| B | 0 | 146 | 0 |
| C | 0 | 146 | 0 |
| D | 0 | 146 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14686 | 3 |
| B | 0 | 16664 | 2 |
| C | 0 | 14641 | 2 |
| D | 0 | 17256 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18 | 0 |
| B | 0 | 18 | 0 |
| C | 0 | 18 | 0 |
| D | 0 | 18 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7027 | 15 | 0.213462% |
| B | 7027 | 268 | 3.813861% |
| C | 7027 | 29 | 0.412694% |
| D | 7027 | 90 | 1.280774% |
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 | 8863 | 7030 | 1 | 1 | 0.01% | 0.01% |  |
| B | 8863 | 7030 | 160 | 160 | 1.81% | 2.28% |  |
| C | 8863 | 7030 | 0 | 0 | 0.00% | 0.00% |  |
| D | 8863 | 7030 | 53 | 53 | 0.60% | 0.75% |  |
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 | 8 | 15 | 178211 | 1053.56 | 835 | 816 | 168.4 |
| A | 12 | 189 | 77475 | 455.28 | 835 | 816 | 168.4 |
| A | 9 | 143 | 19625 | 111.71 | 835 | 816 | 168.4 |
| B | 0 | 182 | 598234 | 3794.85 | 832 | 811 | 157.4 |
| B | 0 | 229 | 160850 | 1016.57 | 832 | 811 | 157.4 |
| B | 4 | 97 | 44438 | 277.12 | 832 | 811 | 157.4 |
| C | 3 | 233 | 373663 | 1964.58 | 819 | 825 | 189.8 |
| C | 13 | 61 | 5828 | 26.36 | 819 | 825 | 189.8 |
| C | 14 | 234 | 5393 | 24.07 | 819 | 825 | 189.8 |
| D | 10 | 199 | 422047 | 2164.51 | 806 | 785 | 194.6 |
| D | 5 | 222 | 377432 | 1935.27 | 806 | 785 | 194.6 |
| D | 8 | 195 | 285627 | 1463.56 | 806 | 785 | 194.6 |
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 |  |