Observation information
- date-obs: 2019-10-13
- time-obs: 04:22:12.349000000
- date-end: 2019-10-13
- time-end: 06:32:19.347500000
- obs_id: A07_004T01_9000003230
- exposure: 4154.3979705
- 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_21848cztM0_level2.evt
| modeM0/AS1A07_004T01_9000003230_21848cztM0_level2_quad_clean.evt
|
| Size (bytes) | 528,523,200 | 84,358,080 |
| Size | 504.0 MB
| 80.5 MB
|
| Events in quadrant A | 3,439,075 | 516,061 |
| Events in quadrant B | 3,865,017 | 525,290 |
| Events in quadrant C | 3,505,106 | 511,703 |
| Events in quadrant D | 4,694,459 | 486,184 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 150 | 0 |
| B | 0 | 150 | 0 |
| C | 0 | 150 | 0 |
| D | 0 | 150 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15083 | 1 |
| B | 0 | 16083 | 1 |
| C | 0 | 15109 | 1 |
| D | 0 | 19066 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 4 | 0 |
| B | 0 | 4 | 0 |
| C | 0 | 4 | 0 |
| D | 0 | 4 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7402 | 83 | 1.121319% |
| B | 7403 | 188 | 2.539511% |
| C | 7403 | 122 | 1.647981% |
| D | 7403 | 323 | 4.363096% |
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 | 7807 | 7402 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7808 | 7403 | 83 | 83 | 1.06% | 1.12% |  |
| C | 7808 | 7403 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7808 | 7403 | 172 | 172 | 2.20% | 2.32% |  |
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 | 13 | 254 | 14304 | 74.19 | 887 | 868 | 181.1 |
| A | 4 | 2 | 11341 | 57.83 | 887 | 868 | 181.1 |
| A | 0 | 226 | 7627 | 37.32 | 887 | 868 | 181.1 |
| B | 3 | 64 | 293757 | 1722.27 | 884 | 862 | 170.1 |
| B | 0 | 190 | 24097 | 136.63 | 884 | 862 | 170.1 |
| B | 0 | 230 | 23487 | 133.04 | 884 | 862 | 170.1 |
| C | 14 | 238 | 133342 | 654.48 | 856 | 860 | 202.4 |
| C | 4 | 175 | 19855 | 93.84 | 856 | 860 | 202.4 |
| C | 5 | 112 | 11121 | 50.69 | 856 | 860 | 202.4 |
| D | 7 | 238 | 818239 | 3908.56 | 852 | 824 | 209.1 |
| D | 13 | 174 | 415444 | 1982.55 | 852 | 824 | 209.1 |
| D | 1 | 52 | 120588 | 572.66 | 852 | 824 | 209.1 |
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 |  |