Observation information
- date-obs: 2023-05-19
- time-obs: 22:23:31.131700000
- date-end: 2023-05-20
- time-end: 00:36:19.132100000
- obs_id: A12_025T14_9000005646
- exposure: 4745.4158197
- sourceid: NGC4477
- observer: rosolowsky
- ra_pnt: 187.5092
- dec_pnt: 13.6366
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A12_025T14_9000005646_41313cztM0_level2.fits
| modeM0/AS1A12_025T14_9000005646_41313cztM0_level2_quad_clean.evt
|
| Size (bytes) | 332,231,040 | 85,112,640 |
| Size | 316.8 MB
| 81.2 MB
|
| Events in quadrant A | 2,770,580 | 581,976 |
| Events in quadrant B | 2,686,653 | 598,652 |
| Events in quadrant C | 3,214,623 | 533,086 |
| Events in quadrant D | 3,227,117 | 504,865 |
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 | 11312 | 3 |
| B | 0 | 11358 | 2 |
| C | 0 | 12616 | 2 |
| D | 0 | 13278 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 28 | 0 |
| B | 0 | 28 | 0 |
| C | 0 | 28 | 0 |
| D | 0 | 29 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5119 | 5 | 0.097675% |
| B | 5119 | 50 | 0.976753% |
| C | 5119 | 292 | 5.704239% |
| D | 5119 | 226 | 4.414925% |
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 | 7002 | 5120 | 4 | 4 | 0.06% | 0.08% |  |
| B | 7002 | 5120 | 50 | 50 | 0.71% | 0.98% |  |
| C | 7002 | 5120 | 286 | 286 | 4.08% | 5.59% |  |
| D | 7001 | 5119 | 212 | 212 | 3.03% | 4.14% |  |
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 | 10 | 83 | 479241 | 4049.26 | 575 | 564 | 118.2 |
| A | 12 | 189 | 24649 | 203.74 | 575 | 564 | 118.2 |
| A | 2 | 79 | 18631 | 152.83 | 575 | 564 | 118.2 |
| B | 5 | 255 | 287436 | 2562.23 | 571 | 554 | 112.0 |
| B | 0 | 229 | 97125 | 862.5 | 571 | 554 | 112.0 |
| B | 0 | 245 | 26000 | 227.27 | 571 | 554 | 112.0 |
| C | 0 | 10 | 857435 | 6763.32 | 537 | 540 | 126.7 |
| C | 15 | 214 | 213230 | 1678.72 | 537 | 540 | 126.7 |
| C | 9 | 54 | 20624 | 158.52 | 537 | 540 | 126.7 |
| D | 2 | 249 | 765186 | 5661.53 | 544 | 528 | 135.1 |
| D | 13 | 249 | 184285 | 1360.53 | 544 | 528 | 135.1 |
| D | 5 | 222 | 86035 | 633.09 | 544 | 528 | 135.1 |
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 |  |