Observation information
- date-obs: 2021-08-12
- time-obs: 15:09:38.796500000
- date-end: 2021-08-12
- time-end: 17:15:02.797800000
- obs_id: A10_059T01_9000004634
- exposure: 4413.59051241
- sourceid: 4U 1735-44
- observer: jitheshthejus
- ra_pnt: 264.7429
- dec_pnt: -44.45
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A10_059T01_9000004634_31758cztM0_level2.evt
| modeM0/AS1A10_059T01_9000004634_31758cztM0_level2_quad_clean.evt
|
| Size (bytes) | 766,468,800 | 107,023,680 |
| Size | 731.0 MB
| 102.1 MB
|
| Events in quadrant A | 6,399,237 | 674,503 |
| Events in quadrant B | 6,067,496 | 742,408 |
| Events in quadrant C | 4,688,952 | 704,754 |
| Events in quadrant D | 5,641,391 | 688,071 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13 | 0 |
| B | 0 | 13 | 0 |
| C | 0 | 13 | 0 |
| D | 0 | 13 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 124 | 0 |
| B | 0 | 124 | 0 |
| C | 0 | 124 | 0 |
| D | 0 | 124 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 23202 | 1 |
| B | 0 | 22255 | 1 |
| C | 0 | 18101 | 1 |
| D | 0 | 20841 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6169 | 1307 | 21.186578% |
| B | 6169 | 532 | 8.623764% |
| C | 6169 | 435 | 7.051386% |
| D | 6169 | 381 | 6.176041% |
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 | 7524 | 6170 | 722 | 722 | 9.60% | 11.70% |  |
| B | 7524 | 6170 | 289 | 289 | 3.84% | 4.68% |  |
| C | 7524 | 6170 | 212 | 212 | 2.82% | 3.44% |  |
| D | 7524 | 6170 | 271 | 271 | 3.60% | 4.39% |  |
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 | 0 | 13 | 3394750 | 22417.05 | 766 | 756 | 151.4 |
| A | 14 | 238 | 44082 | 286.16 | 766 | 756 | 151.4 |
| A | 13 | 254 | 11134 | 68.55 | 766 | 756 | 151.4 |
| B | 6 | 159 | 1747274 | 11524.07 | 817 | 802 | 151.5 |
| B | 5 | 172 | 970927 | 6401.35 | 817 | 802 | 151.5 |
| B | 0 | 229 | 82785 | 540.96 | 817 | 802 | 151.5 |
| C | 0 | 10 | 1079548 | 6079.75 | 773 | 779 | 177.4 |
| C | 3 | 233 | 220717 | 1239.53 | 773 | 779 | 177.4 |
| C | 10 | 22 | 195313 | 1096.36 | 773 | 779 | 177.4 |
| D | 8 | 195 | 1232942 | 6632.58 | 792 | 773 | 185.8 |
| D | 12 | 218 | 949097 | 5104.69 | 792 | 773 | 185.8 |
| D | 12 | 233 | 141655 | 758.35 | 792 | 773 | 185.8 |
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 |  |