Observation information
- date-obs: 2022-01-21
- time-obs: 00:10:25.911000000
- date-end: 2022-01-21
- time-end: 02:26:24.912400000
- obs_id: A11_059T05_9000004876
- exposure: 2262.6684864
- sourceid: NGC 1904
- observer: annapurni
- ra_pnt: 81.04413
- dec_pnt: -24.52425
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A11_059T05_9000004876_34147cztM0_level2.evt
| modeM0/AS1A11_059T05_9000004876_34147cztM0_level2_quad_clean.evt
|
| Size (bytes) | 541,154,880 | 57,222,720 |
| Size | 516.1 MB
| 54.6 MB
|
| Events in quadrant A | 2,603,669 | 355,434 |
| Events in quadrant B | 5,626,913 | 338,802 |
| Events in quadrant C | 3,458,113 | 353,635 |
| Events in quadrant D | 4,347,229 | 319,028 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 29 | 0 |
| B | 0 | 29 | 0 |
| C | 0 | 29 | 0 |
| D | 0 | 30 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 10652 | 3 |
| B | 0 | 20018 | 2 |
| C | 0 | 13460 | 2 |
| D | 0 | 16335 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 106 | 0 |
| B | 0 | 106 | 0 |
| C | 0 | 106 | 0 |
| D | 0 | 106 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5213 | 4 | 0.076731% |
| B | 5213 | 1088 | 20.870900% |
| C | 5213 | 143 | 2.743142% |
| D | 5213 | 246 | 4.718972% |
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 | 7307 | 5214 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7307 | 5214 | 949 | 949 | 12.99% | 18.20% |  |
| C | 7307 | 5214 | 115 | 115 | 1.57% | 2.21% |  |
| D | 7307 | 5214 | 223 | 223 | 3.05% | 4.28% |  |
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 | 20506 | 149.68 | 665 | 654 | 132.6 |
| A | 13 | 6 | 12985 | 92.97 | 665 | 654 | 132.6 |
| A | 13 | 254 | 8798 | 61.4 | 665 | 654 | 132.6 |
| B | 5 | 31 | 1710615 | 14338.64 | 632 | 619 | 119.3 |
| B | 5 | 15 | 823313 | 6898.45 | 632 | 619 | 119.3 |
| B | 5 | 172 | 288171 | 2411.18 | 632 | 619 | 119.3 |
| C | 0 | 10 | 523274 | 3443.24 | 659 | 666 | 151.8 |
| C | 15 | 214 | 223955 | 1471.16 | 659 | 666 | 151.8 |
| C | 9 | 187 | 54389 | 353.96 | 659 | 666 | 151.8 |
| D | 8 | 195 | 1095218 | 7060.5 | 639 | 625 | 155.0 |
| D | 10 | 118 | 571558 | 3682.72 | 639 | 625 | 155.0 |
| D | 12 | 217 | 96269 | 616.94 | 639 | 625 | 155.0 |
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 |  |