Observation information
- date-obs: 2022-05-06
- time-obs: 18:18:53.241800000
- date-end: 2022-05-07
- time-end: 06:57:35.220200000
- obs_id: A09_142T05_9000005118
- exposure: 16163.6256024
- sourceid: NGC 4509
- observer: jyoti
- ra_pnt: 188.2771
- dec_pnt: 32.0909
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A09_142T05_9000005118cztM0_level2.fits
| modeM0/AS1A09_142T05_9000005118cztM0_level2_quad_clean.evt
|
| Size (bytes) | 314,337,600 | 289,716,480 |
| Size | 299.8 MB
| 276.3 MB
|
| Events in quadrant A | 1,918,304 | 1,699,767 |
| Events in quadrant B | 1,807,478 | 1,675,435 |
| Events in quadrant C | 1,824,994 | 1,573,557 |
| Events in quadrant D | 1,613,902 | 1,470,181 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 69636 | 0 |
| B | 0 | 80110 | 0 |
| C | 0 | 85875 | 0 |
| D | 0 | 78904 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 702 | 0 |
| B | 0 | 702 | 0 |
| C | 0 | 702 | 0 |
| D | 0 | 702 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 111 | 0 |
| B | 0 | 111 | 0 |
| C | 0 | 111 | 0 |
| D | 0 | 111 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 34262 | 42 | 0.122585% |
| B | 34262 | 963 | 2.810694% |
| C | 34262 | 1216 | 3.549121% |
| D | 34262 | 594 | 1.733699% |
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 | 45523 | 34262 | 0 | 0 | 0.00% | 0.00% |  |
| B | 45523 | 34256 | 0 | 0 | 0.00% | 0.00% |  |
| C | 45523 | 34253 | 0 | 0 | 0.00% | 0.00% |  |
| D | 45523 | 34249 | 0 | 0 | 0.00% | 0.00% |  |
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 | 9 | 19 | 1582 | 8.74 | 499 | 467 | 127.5 |
| A | 7 | 110 | 1568 | 8.63 | 499 | 467 | 127.5 |
| A | 0 | 29 | 1505 | 8.14 | 499 | 467 | 127.5 |
| B | 2 | 9 | 1604 | 11.97 | 477 | 453 | 96.1 |
| B | 3 | 80 | 1435 | 10.22 | 477 | 453 | 96.1 |
| B | 2 | 8 | 1297 | 8.78 | 477 | 453 | 96.1 |
| C | 3 | 202 | 1399 | 7.47 | 483 | 450 | 127.1 |
| C | 3 | 203 | 1394 | 7.43 | 483 | 450 | 127.1 |
| C | 3 | 187 | 1237 | 6.19 | 483 | 450 | 127.1 |
| D | 4 | 160 | 1267 | 6.77 | 460 | 419 | 125.3 |
| D | 6 | 38 | 1195 | 6.19 | 460 | 419 | 125.3 |
| D | 1 | 3 | 1183 | 6.1 | 460 | 419 | 125.3 |
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 |  |