Observation information
- date-obs: 2020-06-20
- time-obs: 20:19:22.629700000
- date-end: 2020-06-20
- time-end: 22:42:58.624300000
- obs_id: A09_043T02_9000003726
- exposure: 3408.97901149
- 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_25574cztM0_level2.evt
| modeM0/AS1A09_043T02_9000003726_25574cztM0_level2_quad_clean.evt
|
| Size (bytes) | 496,157,760 | 80,550,720 |
| Size | 473.2 MB
| 76.8 MB
|
| Events in quadrant A | 3,205,665 | 515,340 |
| Events in quadrant B | 3,362,779 | 527,880 |
| Events in quadrant C | 3,233,557 | 488,247 |
| Events in quadrant D | 4,791,187 | 462,464 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13350 | 0 |
| B | 0 | 13862 | 0 |
| C | 0 | 13495 | 0 |
| D | 0 | 18574 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 23 | 0 |
| B | 0 | 23 | 0 |
| C | 0 | 23 | 0 |
| D | 0 | 23 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6385 | 24 | 0.375881% |
| B | 6386 | 30 | 0.469778% |
| C | 6386 | 43 | 0.673348% |
| D | 6386 | 313 | 4.901347% |
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 | 8615 | 6387 | 3 | 3 | 0.03% | 0.05% |  |
| B | 8616 | 6388 | 1 | 1 | 0.01% | 0.02% |  |
| C | 8616 | 6388 | 0 | 0 | 0.00% | 0.00% |  |
| D | 8616 | 6388 | 254 | 254 | 2.95% | 3.98% |  |
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 | 15 | 173 | 15565 | 88.4 | 826 | 810 | 166.9 |
| A | 13 | 254 | 9977 | 54.92 | 826 | 810 | 166.9 |
| A | 3 | 137 | 7336 | 39.1 | 826 | 810 | 166.9 |
| B | 15 | 33 | 52235 | 331.47 | 826 | 808 | 155.1 |
| B | 0 | 219 | 22724 | 141.26 | 826 | 808 | 155.1 |
| B | 0 | 190 | 20092 | 124.29 | 826 | 808 | 155.1 |
| C | 14 | 238 | 127086 | 687.51 | 781 | 788 | 183.7 |
| C | 3 | 233 | 43709 | 233.64 | 781 | 788 | 183.7 |
| C | 1 | 90 | 9981 | 50.04 | 781 | 788 | 183.7 |
| D | 1 | 52 | 1369892 | 7318.28 | 767 | 747 | 187.1 |
| D | 8 | 195 | 429021 | 2289.19 | 767 | 747 | 187.1 |
| D | 2 | 120 | 29353 | 152.9 | 767 | 747 | 187.1 |
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 |  |