Observation information
- date-obs: 2019-10-13
- time-obs: 16:26:26.335400000
- date-end: 2019-10-13
- time-end: 18:40:35.333900000
- obs_id: A07_004T01_9000003230
- exposure: 3973.23176196
- sourceid: SAX J1808.4-3658
- observer: dleahy
- ra_pnt: 272.1147
- dec_pnt: -36.97897
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A07_004T01_9000003230_21856cztM0_level2.evt
| modeM0/AS1A07_004T01_9000003230_21856cztM0_level2_quad_clean.evt
|
| Size (bytes) | 459,475,200 | 96,174,720 |
| Size | 438.2 MB
| 91.7 MB
|
| Events in quadrant A | 3,360,497 | 630,216 |
| Events in quadrant B | 3,490,897 | 651,463 |
| Events in quadrant C | 3,158,651 | 614,788 |
| Events in quadrant D | 3,486,954 | 585,968 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 126 | 0 |
| B | 0 | 126 | 0 |
| C | 0 | 126 | 0 |
| D | 0 | 126 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13912 | 2 |
| B | 0 | 14173 | 2 |
| C | 0 | 13157 | 2 |
| D | 0 | 14407 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18 | 0 |
| B | 0 | 19 | 0 |
| C | 0 | 19 | 0 |
| D | 0 | 19 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6159 | 63 | 1.022893% |
| B | 6159 | 84 | 1.363858% |
| C | 6159 | 66 | 1.071603% |
| D | 6159 | 71 | 1.152785% |
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 | 7499 | 6160 | 22 | 22 | 0.29% | 0.36% |  |
| B | 7499 | 6160 | 22 | 22 | 0.29% | 0.36% |  |
| C | 7499 | 6160 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7499 | 6160 | 52 | 52 | 0.69% | 0.84% |  |
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 | 4 | 2 | 199940 | 1221.03 | 816 | 802 | 163.1 |
| A | 13 | 254 | 12255 | 70.23 | 816 | 802 | 163.1 |
| A | 14 | 235 | 8601 | 47.82 | 816 | 802 | 163.1 |
| B | 3 | 64 | 77616 | 497.76 | 821 | 803 | 154.3 |
| B | 15 | 33 | 67988 | 435.37 | 821 | 803 | 154.3 |
| B | 4 | 171 | 45196 | 287.67 | 821 | 803 | 154.3 |
| C | 14 | 238 | 123087 | 678.76 | 775 | 779 | 180.2 |
| C | 0 | 10 | 6970 | 34.36 | 775 | 779 | 180.2 |
| C | 5 | 112 | 6893 | 33.93 | 775 | 779 | 180.2 |
| D | 7 | 238 | 328309 | 1618.08 | 766 | 749 | 202.4 |
| D | 12 | 235 | 40223 | 194.99 | 766 | 749 | 202.4 |
| D | 15 | 145 | 34980 | 169.09 | 766 | 749 | 202.4 |
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 |  |