Observation information
- date-obs: 2020-06-22
- time-obs: 03:51:19.563700000
- date-end: 2020-06-22
- time-end: 06:03:18.559700000
- obs_id: A09_043T02_9000003726
- exposure: 3558.2520013
- sourceid: NGC 3351
- observer: chayan
- ra_pnt: 160.9904
- dec_pnt: 11.70381
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A09_043T02_9000003726_25593cztM0_level2.evt
| modeM0/AS1A09_043T02_9000003726_25593cztM0_level2_quad_clean.evt
|
| Size (bytes) | 613,376,640 | 82,065,600 |
| Size | 585.0 MB
| 78.3 MB
|
| Events in quadrant A | 3,820,390 | 540,800 |
| Events in quadrant B | 3,595,607 | 548,618 |
| Events in quadrant C | 3,438,277 | 507,510 |
| Events in quadrant D | 7,282,956 | 435,436 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15193 | 0 |
| B | 0 | 14384 | 0 |
| C | 0 | 13886 | 0 |
| D | 0 | 26474 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14 | 0 |
| B | 0 | 15 | 0 |
| C | 0 | 15 | 0 |
| D | 0 | 15 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6484 | 120 | 1.850709% |
| B | 6484 | 145 | 2.236274% |
| C | 6484 | 158 | 2.436767% |
| D | 6483 | 1070 | 16.504705% |
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 | 7650 | 6485 | 6 | 6 | 0.08% | 0.09% |  |
| B | 7650 | 6485 | 0 | 0 | 0.00% | 0.00% |  |
| C | 7650 | 6484 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7649 | 6484 | 830 | 830 | 10.85% | 12.80% |  |
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 | 6 | 16 | 196405 | 1087.13 | 902 | 886 | 179.8 |
| A | 8 | 192 | 147478 | 815.09 | 902 | 886 | 179.8 |
| A | 13 | 254 | 10801 | 55.13 | 902 | 886 | 179.8 |
| B | 0 | 219 | 59203 | 344.04 | 894 | 874 | 169.5 |
| B | 12 | 111 | 20059 | 113.16 | 894 | 874 | 169.5 |
| B | 15 | 33 | 18673 | 104.98 | 894 | 874 | 169.5 |
| C | 14 | 238 | 138025 | 695.8 | 843 | 851 | 197.1 |
| C | 3 | 233 | 9966 | 46.23 | 843 | 851 | 197.1 |
| C | 0 | 207 | 5996 | 26.1 | 843 | 851 | 197.1 |
| D | 12 | 2 | 1839721 | 9454.65 | 795 | 773 | 194.5 |
| D | 1 | 52 | 1432821 | 7362.64 | 795 | 773 | 194.5 |
| D | 2 | 244 | 534927 | 2746.27 | 795 | 773 | 194.5 |
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 |  |