Observation information
- date-obs: 2021-02-06
- time-obs: 02:31:14.884700000
- date-end: 2021-02-06
- time-end: 04:59:26.877600000
- obs_id: A10_048T03_9000004154
- exposure: 4806.6564761
- 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_28982cztM0_level2.evt
| modeM0/AS1A10_048T03_9000004154_28982cztM0_level2_quad_clean.evt
|
| Size (bytes) | 754,214,400 | 98,268,480 |
| Size | 719.3 MB
| 93.7 MB
|
| Events in quadrant A | 4,007,649 | 653,979 |
| Events in quadrant B | 3,667,292 | 674,294 |
| Events in quadrant C | 3,617,401 | 645,077 |
| Events in quadrant D | 11,053,910 | 492,671 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16 | 0 |
| B | 0 | 16 | 0 |
| C | 0 | 16 | 0 |
| D | 0 | 16 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16572 | 2 |
| B | 0 | 15457 | 2 |
| C | 0 | 15197 | 2 |
| D | 0 | 37818 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 150 | 0 |
| B | 0 | 150 | 0 |
| C | 0 | 150 | 0 |
| D | 0 | 150 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7313 | 302 | 4.129632% |
| B | 7314 | 116 | 1.585999% |
| C | 7314 | 120 | 1.640689% |
| D | 7314 | 2914 | 39.841400% |
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 | 8892 | 7319 | 177 | 177 | 1.99% | 2.42% |  |
| B | 8893 | 7320 | 7 | 7 | 0.08% | 0.10% |  |
| C | 8892 | 7319 | 0 | 0 | 0.00% | 0.00% |  |
| D | 8892 | 7319 | 2455 | 2455 | 27.61% | 33.54% |  |
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 | 1 | 113 | 545217 | 3047.08 | 885 | 869 | 178.6 |
| A | 6 | 16 | 36893 | 201.65 | 885 | 869 | 178.6 |
| A | 13 | 254 | 12269 | 63.81 | 885 | 869 | 178.6 |
| B | 10 | 245 | 80035 | 451.3 | 898 | 874 | 175.4 |
| B | 10 | 247 | 48342 | 270.62 | 898 | 874 | 175.4 |
| B | 12 | 111 | 21690 | 118.67 | 898 | 874 | 175.4 |
| C | 14 | 238 | 141099 | 678.31 | 873 | 880 | 206.7 |
| C | 3 | 233 | 55611 | 264.76 | 873 | 880 | 206.7 |
| C | 2 | 114 | 17426 | 80.04 | 873 | 880 | 206.7 |
| D | 7 | 80 | 7728633 | 45338.14 | 700 | 679 | 170.5 |
| D | 8 | 195 | 588624 | 3449.34 | 700 | 679 | 170.5 |
| D | 1 | 52 | 54348 | 314.86 | 700 | 679 | 170.5 |
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 |  |