Observation information
- date-obs: 2019-05-28
- time-obs: 10:31:30.281800000
- date-end: 2019-05-28
- time-end: 14:28:53.278300000
- obs_id: C04_009T06_9000002960
- exposure: 12319.8877738
- sourceid: NGC 188
- observer: annapurni
- ra_pnt: 12.08
- dec_pnt: 85.22392
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1C04_009T06_9000002960_19810cztM0_level2.evt
| modeM0/AS1C04_009T06_9000002960_19810cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,066,392,000 | 226,788,480 |
| Size | 1017.0 MB
| 216.3 MB
|
| Events in quadrant A | 5,683,455 | 1,555,474 |
| Events in quadrant B | 8,471,866 | 1,546,851 |
| Events in quadrant C | 5,781,328 | 1,510,859 |
| Events in quadrant D | 11,513,418 | 1,389,791 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 254 | 0 |
| B | 0 | 254 | 0 |
| C | 0 | 254 | 0 |
| D | 0 | 254 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17 | 0 |
| B | 0 | 18 | 0 |
| C | 0 | 18 | 0 |
| D | 0 | 18 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 25430 | 3 |
| B | 0 | 33449 | 3 |
| C | 0 | 25432 | 3 |
| D | 0 | 42896 | 3 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 12525 | 82 | 0.654691% |
| B | 12525 | 483 | 3.856287% |
| C | 12525 | 128 | 1.021956% |
| D | 12525 | 1453 | 11.600798% |
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 | 14125 | 12526 | 1 | 1 | 0.01% | 0.01% |  |
| B | 14125 | 12527 | 347 | 347 | 2.46% | 2.77% |  |
| C | 14125 | 12527 | 3 | 3 | 0.02% | 0.02% |  |
| D | 14125 | 12526 | 1218 | 1218 | 8.62% | 9.72% |  |
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 | 0 | 226 | 13008 | 39.06 | 1469 | 1436 | 296.3 |
| A | 3 | 137 | 11498 | 33.96 | 1469 | 1436 | 296.3 |
| A | 4 | 2 | 10778 | 31.53 | 1469 | 1436 | 296.3 |
| B | 10 | 245 | 2351229 | 8543.45 | 1451 | 1411 | 275.0 |
| B | 7 | 220 | 161329 | 581.43 | 1451 | 1411 | 275.0 |
| B | 4 | 216 | 100911 | 361.76 | 1451 | 1411 | 275.0 |
| C | 14 | 238 | 220516 | 668.58 | 1407 | 1414 | 327.7 |
| C | 3 | 233 | 48608 | 144.01 | 1407 | 1414 | 327.7 |
| C | 0 | 207 | 29410 | 85.43 | 1407 | 1414 | 327.7 |
| D | 1 | 52 | 3060720 | 9252.8 | 1364 | 1322 | 330.6 |
| D | 7 | 38 | 1111425 | 3357.38 | 1364 | 1322 | 330.6 |
| D | 2 | 69 | 777798 | 2348.36 | 1364 | 1322 | 330.6 |
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 |  |