Observation information
- date-obs: 2022-01-05
- time-obs: 08:16:01.756900000
- date-end: 2022-01-05
- time-end: 10:12:26.756400000
- obs_id: T04_091T01_9000004842
- exposure: 2597.68784966
- 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_33915cztM0_level2.evt
| modeM0/AS1T04_091T01_9000004842_33915cztM0_level2_quad_clean.evt
|
| Size (bytes) | 470,390,400 | 64,442,880 |
| Size | 448.6 MB
| 61.5 MB
|
| Events in quadrant A | 2,592,820 | 414,023 |
| Events in quadrant B | 3,214,390 | 408,744 |
| Events in quadrant C | 3,140,899 | 405,345 |
| Events in quadrant D | 4,964,228 | 377,815 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 100 | 0 |
| B | 0 | 100 | 0 |
| C | 0 | 100 | 0 |
| D | 0 | 100 | 0 |
| 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 | 10349 | 2 |
| B | 0 | 12485 | 1 |
| C | 0 | 12514 | 1 |
| D | 0 | 18300 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 4922 | 12 | 0.243803% |
| B | 4922 | 145 | 2.945957% |
| C | 4922 | 82 | 1.665989% |
| D | 4922 | 392 | 7.964242% |
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 | 6985 | 4923 | 5 | 5 | 0.07% | 0.10% |  |
| B | 6985 | 4923 | 94 | 94 | 1.35% | 1.91% |  |
| C | 6985 | 4923 | 61 | 61 | 0.87% | 1.24% |  |
| D | 6985 | 4923 | 342 | 342 | 4.90% | 6.95% |  |
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 | 7 | 16 | 41206 | 313.13 | 653 | 644 | 129.5 |
| A | 15 | 169 | 15578 | 115.29 | 653 | 644 | 129.5 |
| A | 10 | 83 | 8829 | 63.19 | 653 | 644 | 129.5 |
| B | 5 | 172 | 267013 | 2240.36 | 630 | 614 | 118.9 |
| B | 15 | 35 | 188821 | 1582.78 | 630 | 614 | 118.9 |
| B | 4 | 251 | 73930 | 616.57 | 630 | 614 | 118.9 |
| C | 15 | 214 | 215755 | 1510.49 | 624 | 630 | 142.4 |
| C | 0 | 207 | 182753 | 1278.77 | 624 | 630 | 142.4 |
| C | 0 | 10 | 177613 | 1242.68 | 624 | 630 | 142.4 |
| D | 8 | 195 | 707266 | 4721.03 | 618 | 602 | 149.7 |
| D | 12 | 235 | 529898 | 3536.09 | 618 | 602 | 149.7 |
| D | 2 | 250 | 400238 | 2669.86 | 618 | 602 | 149.7 |
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 |  |