Observation information
- date-obs: 2022-01-05
- time-obs: 13:12:05.757600000
- date-end: 2022-01-05
- time-end: 15:28:05.759000000
- obs_id: T04_091T01_9000004842
- exposure: 2416.60416265
- 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_9000004842_33918cztM0_level2.evt
| modeM0/AS1T04_091T01_9000004842_33918cztM0_level2_quad_clean.evt
|
| Size (bytes) | 514,797,120 | 54,048,960 |
| Size | 490.9 MB
| 51.5 MB
|
| Events in quadrant A | 2,907,854 | 315,479 |
| Events in quadrant B | 3,139,655 | 322,900 |
| Events in quadrant C | 3,340,786 | 325,484 |
| Events in quadrant D | 5,850,558 | 308,399 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 106 | 0 |
| B | 0 | 106 | 0 |
| C | 0 | 106 | 0 |
| D | 0 | 106 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 29 | 0 |
| B | 0 | 29 | 0 |
| C | 0 | 29 | 0 |
| D | 0 | 30 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11890 | 3 |
| B | 0 | 12553 | 2 |
| C | 0 | 13154 | 2 |
| D | 0 | 20979 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5196 | 119 | 2.290223% |
| B | 5196 | 86 | 1.655119% |
| C | 5196 | 124 | 2.386451% |
| D | 5196 | 772 | 14.857583% |
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 | 7169 | 5197 | 97 | 97 | 1.35% | 1.87% |  |
| B | 7169 | 5197 | 53 | 53 | 0.74% | 1.02% |  |
| C | 7169 | 5197 | 93 | 93 | 1.30% | 1.79% |  |
| D | 7169 | 5197 | 507 | 507 | 7.07% | 9.76% |  |
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 | 169 | 472946 | 3789.27 | 621 | 609 | 124.7 |
| A | 7 | 16 | 16116 | 124.4 | 621 | 609 | 124.7 |
| A | 10 | 83 | 12979 | 99.24 | 621 | 609 | 124.7 |
| B | 5 | 172 | 386897 | 3283.59 | 620 | 605 | 117.6 |
| B | 4 | 251 | 79743 | 672.7 | 620 | 605 | 117.6 |
| B | 0 | 219 | 70963 | 598.06 | 620 | 605 | 117.6 |
| C | 0 | 10 | 330382 | 2351.98 | 607 | 611 | 140.2 |
| C | 15 | 214 | 224904 | 1599.69 | 607 | 611 | 140.2 |
| C | 0 | 207 | 182573 | 1297.78 | 607 | 611 | 140.2 |
| D | 8 | 195 | 1519854 | 10980.79 | 562 | 546 | 138.4 |
| D | 12 | 0 | 799135 | 5771.8 | 562 | 546 | 138.4 |
| D | 1 | 52 | 320876 | 2315.18 | 562 | 546 | 138.4 |
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 |  |