Observation information
- date-obs: 2021-12-28
- time-obs: 10:18:45.908900000
- date-end: 2021-12-28
- time-end: 12:23:24.904500000
- obs_id: T04_091T01_9000004822
- exposure: 2259.66790716
- sourceid: ngc4509
- observer: jyoti
- ra_pnt: 188.2771
- dec_pnt: 32.0909
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T04_091T01_9000004822_33798cztM0_level2.evt
| modeM0/AS1T04_091T01_9000004822_33798cztM0_level2_quad_clean.evt
|
| Size (bytes) | 631,451,520 | 54,351,360 |
| Size | 602.2 MB
| 51.8 MB
|
| Events in quadrant A | 5,390,894 | 307,725 |
| Events in quadrant B | 3,184,509 | 338,631 |
| Events in quadrant C | 3,226,683 | 334,974 |
| Events in quadrant D | 6,975,971 | 304,510 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 104 | 0 |
| B | 0 | 104 | 0 |
| C | 0 | 104 | 0 |
| D | 0 | 104 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 19451 | 3 |
| B | 0 | 12571 | 2 |
| C | 0 | 13063 | 2 |
| D | 0 | 24367 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 23 | 0 |
| B | 0 | 23 | 0 |
| C | 0 | 23 | 0 |
| D | 0 | 24 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5126 | 1034 | 20.171674% |
| B | 5126 | 88 | 1.716738% |
| C | 5126 | 47 | 0.916894% |
| D | 5126 | 546 | 10.651580% |
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 | 7068 | 5127 | 767 | 767 | 10.85% | 14.96% |  |
| B | 7068 | 5127 | 48 | 48 | 0.68% | 0.94% |  |
| C | 7068 | 5127 | 35 | 35 | 0.50% | 0.68% |  |
| D | 7068 | 5127 | 562 | 562 | 7.95% | 10.96% |  |
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 | 237 | 3029958 | 24996.27 | 604 | 594 | 121.2 |
| A | 10 | 83 | 9903 | 76.81 | 604 | 594 | 121.2 |
| A | 13 | 6 | 9739 | 75.46 | 604 | 594 | 121.2 |
| B | 5 | 172 | 337758 | 2751.27 | 653 | 638 | 122.5 |
| B | 4 | 251 | 50805 | 409.42 | 653 | 638 | 122.5 |
| B | 5 | 255 | 45802 | 368.59 | 653 | 638 | 122.5 |
| C | 15 | 214 | 227271 | 1542.1 | 645 | 653 | 147.0 |
| C | 4 | 254 | 159173 | 1078.7 | 645 | 653 | 147.0 |
| C | 0 | 10 | 156601 | 1061.2 | 645 | 653 | 147.0 |
| D | 8 | 195 | 2650584 | 17019.98 | 634 | 618 | 155.7 |
| D | 12 | 235 | 471004 | 3021.16 | 634 | 618 | 155.7 |
| D | 2 | 250 | 408986 | 2622.83 | 634 | 618 | 155.7 |
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 |  |