Observation information
- date-obs: 2022-08-22
- time-obs: 02:25:19.757500000
- date-end: 2022-08-22
- time-end: 04:42:39.760000000
- obs_id: A10_103T07_9000005302
- exposure: 2139.56744078
- sourceid: Terzan 8
- observer: annapurni
- ra_pnt: 295.435
- dec_pnt: -33.99947
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A10_103T07_9000005302_37302cztM0_level2.evt
| modeM0/AS1A10_103T07_9000005302_37302cztM0_level2_quad_clean.evt
|
| Size (bytes) | 392,909,760 | 51,796,800 |
| Size | 374.7 MB
| 49.4 MB
|
| Events in quadrant A | 2,842,226 | 295,947 |
| Events in quadrant B | 2,801,575 | 308,418 |
| Events in quadrant C | 2,975,818 | 305,407 |
| Events in quadrant D | 2,913,448 | 281,321 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11579 | 3 |
| B | 0 | 11468 | 2 |
| C | 0 | 11728 | 2 |
| D | 0 | 12133 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 28 | 0 |
| B | 0 | 28 | 0 |
| C | 0 | 28 | 0 |
| D | 0 | 29 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 110 | 0 |
| B | 0 | 110 | 0 |
| C | 0 | 110 | 0 |
| D | 0 | 110 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5381 | 9 | 0.167255% |
| B | 5381 | 50 | 0.929195% |
| C | 5381 | 61 | 1.133618% |
| D | 5381 | 127 | 2.360156% |
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 | 7324 | 5382 | 4 | 4 | 0.05% | 0.07% |  |
| B | 7324 | 5382 | 18 | 18 | 0.25% | 0.33% |  |
| C | 7324 | 5382 | 54 | 54 | 0.74% | 1.00% |  |
| D | 7324 | 5382 | 94 | 94 | 1.28% | 1.75% |  |
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 | 10 | 83 | 265758 | 2024.04 | 651 | 641 | 131.0 |
| A | 9 | 143 | 30060 | 224.6 | 651 | 641 | 131.0 |
| A | 13 | 248 | 13871 | 101.0 | 651 | 641 | 131.0 |
| B | 12 | 18 | 112271 | 902.85 | 655 | 639 | 123.6 |
| B | 0 | 213 | 41419 | 329.82 | 655 | 639 | 123.6 |
| B | 4 | 171 | 23065 | 181.38 | 655 | 639 | 123.6 |
| C | 15 | 214 | 225922 | 1501.83 | 648 | 654 | 150.0 |
| C | 0 | 10 | 201584 | 1339.57 | 648 | 654 | 150.0 |
| C | 14 | 254 | 11039 | 69.24 | 648 | 654 | 150.0 |
| D | 10 | 199 | 296355 | 1933.05 | 633 | 617 | 153.0 |
| D | 13 | 249 | 88476 | 574.28 | 633 | 617 | 153.0 |
| D | 2 | 249 | 33708 | 216.29 | 633 | 617 | 153.0 |
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 |  |