Observation information
- date-obs: 2021-02-04
- time-obs: 15:40:42.920400000
- date-end: 2021-02-04
- time-end: 18:05:47.918000000
- obs_id: A10_048T03_9000004154
- exposure: 4046.41158184
- sourceid: NGC 4981
- observer: chayan
- ra_pnt: 197.2029
- dec_pnt: -6.7775
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A10_048T03_9000004154_28961cztM0_level2.evt
| modeM0/AS1A10_048T03_9000004154_28961cztM0_level2_quad_clean.evt
|
| Size (bytes) | 526,302,720 | 84,286,080 |
| Size | 501.9 MB
| 80.4 MB
|
| Events in quadrant A | 3,402,372 | 528,926 |
| Events in quadrant B | 3,558,447 | 539,395 |
| Events in quadrant C | 3,492,708 | 514,923 |
| Events in quadrant D | 5,033,356 | 504,118 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 21 | 0 |
| B | 0 | 21 | 0 |
| C | 0 | 21 | 0 |
| D | 0 | 21 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14464 | 3 |
| B | 0 | 14979 | 2 |
| C | 0 | 14670 | 2 |
| D | 0 | 19700 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 136 | 0 |
| B | 0 | 136 | 0 |
| C | 0 | 136 | 0 |
| D | 0 | 136 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6674 | 80 | 1.198681% |
| B | 6674 | 112 | 1.678154% |
| C | 6674 | 249 | 3.730896% |
| D | 6675 | 249 | 3.730337% |
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 | 8704 | 6676 | 0 | 0 | 0.00% | 0.00% |  |
| B | 8704 | 6676 | 7 | 7 | 0.08% | 0.10% |  |
| C | 8704 | 6676 | 0 | 0 | 0.00% | 0.00% |  |
| D | 8705 | 6677 | 140 | 140 | 1.61% | 2.10% |  |
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 | 12 | 96 | 30437 | 169.99 | 865 | 848 | 174.1 |
| A | 15 | 192 | 20571 | 113.31 | 865 | 848 | 174.1 |
| A | 11 | 128 | 13402 | 72.12 | 865 | 848 | 174.1 |
| B | 10 | 245 | 154472 | 928.51 | 860 | 839 | 165.5 |
| B | 12 | 111 | 19990 | 115.74 | 860 | 839 | 165.5 |
| B | 11 | 111 | 18246 | 105.2 | 860 | 839 | 165.5 |
| C | 14 | 238 | 176723 | 911.2 | 823 | 827 | 193.0 |
| C | 14 | 254 | 62324 | 318.57 | 823 | 827 | 193.0 |
| C | 3 | 233 | 26779 | 134.44 | 823 | 827 | 193.0 |
| D | 8 | 195 | 988392 | 4957.43 | 829 | 808 | 199.2 |
| D | 1 | 52 | 421351 | 2111.02 | 829 | 808 | 199.2 |
| D | 5 | 233 | 280246 | 1402.71 | 829 | 808 | 199.2 |
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 |  |