Observation information
- date-obs: 2021-12-28
- time-obs: 18:37:05.899900000
- date-end: 2021-12-28
- time-end: 21:07:09.898600000
- obs_id: T04_091T01_9000004822
- exposure: 4377.39057344
- 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_33803cztM0_level2.evt
| modeM0/AS1T04_091T01_9000004822_33803cztM0_level2_quad_clean.evt
|
| Size (bytes) | 579,746,880 | 86,008,320 |
| Size | 552.9 MB
| 82.0 MB
|
| Events in quadrant A | 4,379,682 | 549,553 |
| Events in quadrant B | 3,317,992 | 572,407 |
| Events in quadrant C | 3,192,024 | 576,713 |
| Events in quadrant D | 6,299,729 | 524,547 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 112 | 0 |
| B | 0 | 112 | 0 |
| C | 0 | 112 | 0 |
| D | 0 | 112 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16655 | 3 |
| B | 0 | 13399 | 2 |
| C | 0 | 12674 | 2 |
| D | 0 | 22606 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 35 | 0 |
| B | 0 | 35 | 0 |
| C | 0 | 35 | 0 |
| D | 0 | 36 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5441 | 649 | 11.927954% |
| B | 5441 | 161 | 2.959015% |
| C | 5441 | 104 | 1.911413% |
| D | 5441 | 689 | 12.663113% |
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 | 7143 | 5442 | 467 | 467 | 6.54% | 8.58% |  |
| B | 7143 | 5442 | 99 | 99 | 1.39% | 1.82% |  |
| C | 7143 | 5442 | 84 | 84 | 1.18% | 1.54% |  |
| D | 7143 | 5442 | 658 | 658 | 9.21% | 12.09% |  |
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 | 2017554 | 16532.06 | 604 | 592 | 122.0 |
| A | 13 | 6 | 16057 | 126.76 | 604 | 592 | 122.0 |
| A | 13 | 254 | 9963 | 76.81 | 604 | 592 | 122.0 |
| B | 5 | 172 | 567287 | 4695.88 | 627 | 610 | 120.7 |
| B | 4 | 81 | 55036 | 451.01 | 627 | 610 | 120.7 |
| B | 0 | 190 | 54049 | 442.83 | 627 | 610 | 120.7 |
| C | 15 | 214 | 236610 | 1653.63 | 619 | 625 | 142.7 |
| C | 9 | 187 | 190130 | 1327.93 | 619 | 625 | 142.7 |
| C | 0 | 10 | 160580 | 1120.86 | 619 | 625 | 142.7 |
| D | 12 | 235 | 2060801 | 13763.05 | 591 | 577 | 149.7 |
| D | 8 | 195 | 1137448 | 7594.71 | 591 | 577 | 149.7 |
| D | 2 | 250 | 472076 | 3149.78 | 591 | 577 | 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 |  |