Observation information
- date-obs: 2021-12-10
- time-obs: 07:03:59.108200000
- date-end: 2021-12-10
- time-end: 09:02:50.106900000
- obs_id: A11_037T01_9000004806
- exposure: 5086.19916856
- sourceid: NGC 2808
- observer: deepthisprabhu
- ra_pnt: 138.0129
- dec_pnt: -64.8625
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A11_037T01_9000004806_33529cztM0_level2.evt
| modeM0/AS1A11_037T01_9000004806_33529cztM0_level2_quad_clean.evt
|
| Size (bytes) | 544,576,320 | 95,653,440 |
| Size | 519.3 MB
| 91.2 MB
|
| Events in quadrant A | 2,542,882 | 637,759 |
| Events in quadrant B | 4,336,813 | 633,748 |
| Events in quadrant C | 3,816,151 | 631,597 |
| Events in quadrant D | 5,409,244 | 593,209 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14 | 0 |
| B | 0 | 14 | 0 |
| C | 0 | 14 | 0 |
| D | 0 | 14 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11489 | 2 |
| B | 0 | 16690 | 1 |
| C | 0 | 14775 | 1 |
| D | 0 | 20092 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 116 | 0 |
| B | 0 | 116 | 0 |
| C | 0 | 116 | 0 |
| D | 0 | 116 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5727 | 5 | 0.087306% |
| B | 5727 | 322 | 5.622490% |
| C | 5727 | 170 | 2.968395% |
| D | 5727 | 215 | 3.754147% |
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 | 7131 | 5728 | 1 | 1 | 0.01% | 0.02% |  |
| B | 7131 | 5728 | 247 | 247 | 3.46% | 4.31% |  |
| C | 7131 | 5728 | 142 | 142 | 1.99% | 2.48% |  |
| D | 7131 | 5728 | 189 | 189 | 2.65% | 3.30% |  |
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 | 11016 | 78.4 | 653 | 638 | 132.4 |
| A | 13 | 6 | 6404 | 43.56 | 653 | 638 | 132.4 |
| A | 3 | 137 | 6232 | 42.26 | 653 | 638 | 132.4 |
| B | 5 | 172 | 735494 | 5978.63 | 644 | 629 | 122.9 |
| B | 5 | 255 | 379220 | 3080.1 | 644 | 629 | 122.9 |
| B | 0 | 229 | 148277 | 1201.22 | 644 | 629 | 122.9 |
| C | 1 | 23 | 283096 | 1924.72 | 634 | 637 | 146.8 |
| C | 15 | 214 | 270681 | 1840.13 | 634 | 637 | 146.8 |
| C | 0 | 10 | 256964 | 1746.66 | 634 | 637 | 146.8 |
| D | 8 | 195 | 1745067 | 11106.6 | 627 | 611 | 157.1 |
| D | 2 | 250 | 204658 | 1299.13 | 627 | 611 | 157.1 |
| D | 13 | 249 | 196170 | 1245.08 | 627 | 611 | 157.1 |
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 |  |