Observation information
- date-obs: 2021-02-05
- time-obs: 07:47:12.905500000
- date-end: 2021-02-05
- time-end: 14:40:19.900600000
- obs_id: A10_048T03_9000004154
- exposure: 12911.8760333
- 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_28973cztM0_level2.evt
| modeM0/AS1A10_048T03_9000004154_28973cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,969,712,640 | 264,430,080 |
| Size | 1.8 GB
| 252.2 MB
|
| Events in quadrant A | 10,628,895 | 1,672,757 |
| Events in quadrant B | 11,070,059 | 1,700,490 |
| Events in quadrant C | 10,921,247 | 1,642,432 |
| Events in quadrant D | 25,529,320 | 1,456,223 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 25 | 0 |
| B | 0 | 25 | 0 |
| C | 0 | 25 | 0 |
| D | 0 | 25 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 46140 | 4 |
| B | 0 | 47097 | 4 |
| C | 0 | 46249 | 4 |
| D | 0 | 91470 | 4 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 454 | 0 |
| B | 0 | 454 | 0 |
| C | 0 | 454 | 0 |
| D | 0 | 454 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 22312 | 268 | 1.201147% |
| B | 22313 | 314 | 1.407251% |
| C | 22313 | 324 | 1.452068% |
| D | 22312 | 3823 | 17.134278% |
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 | 24787 | 22312 | 29 | 29 | 0.12% | 0.13% |  |
| B | 24788 | 22313 | 57 | 57 | 0.23% | 0.26% |  |
| C | 24788 | 22313 | 4 | 4 | 0.02% | 0.02% |  |
| D | 24787 | 22312 | 3272 | 3272 | 13.20% | 14.66% |  |
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 | 210 | 152528 | 276.64 | 2687 | 2621 | 541.9 |
| A | 13 | 6 | 66827 | 118.49 | 2687 | 2621 | 541.9 |
| A | 13 | 254 | 39727 | 68.48 | 2687 | 2621 | 541.9 |
| B | 10 | 246 | 306109 | 590.14 | 2667 | 2593 | 514.3 |
| B | 10 | 245 | 136375 | 260.12 | 2667 | 2593 | 514.3 |
| B | 12 | 111 | 65621 | 122.55 | 2667 | 2593 | 514.3 |
| C | 14 | 238 | 414210 | 670.84 | 2598 | 2618 | 613.5 |
| C | 3 | 233 | 205031 | 329.91 | 2598 | 2618 | 613.5 |
| C | 2 | 16 | 85760 | 135.51 | 2598 | 2618 | 613.5 |
| D | 1 | 52 | 7787637 | 13513.34 | 2417 | 2356 | 576.1 |
| D | 8 | 195 | 4972909 | 8627.66 | 2417 | 2356 | 576.1 |
| D | 7 | 80 | 1691312 | 2931.61 | 2417 | 2356 | 576.1 |
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 |  |