Observation information
- date-obs: 2022-02-19
- time-obs: 09:35:25.516800000
- date-end: 2022-02-19
- time-end: 12:07:04.509600000
- obs_id: A05_176T03_9000004942
- exposure: 2655.21821715
- sourceid: NGC4841Aoffset
- observer: renbin
- ra_pnt: 194.3009
- dec_pnt: 28.49237
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A05_176T03_9000004942cztM0_level2_bc.evt
| modeM0/AS1A05_176T03_9000004942cztM0_level2_quad_clean.evt
|
Size (bytes) | 452,551,680 | 63,766,080 |
Size | 431.6 MB
| 60.8 MB
|
Events in quadrant A | 1,582,790 | 386,408 |
Events in quadrant B | 2,533,987 | 374,295 |
Events in quadrant C | 1,990,861 | 369,616 |
Events in quadrant D | 7,144,498 | 341,405 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 134 | 0 |
B | 0 | 134 | 0 |
C | 0 | 134 | 0 |
D | 0 | 134 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 24 | 0 |
B | 0 | 24 | 0 |
C | 0 | 24 | 0 |
D | 0 | 25 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 13800 | 0 |
B | 0 | 17946 | 0 |
C | 0 | 15092 | 0 |
D | 0 | 32560 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6577 | 6 | 0.091227% |
B | 6577 | 224 | 3.405808% |
C | 6577 | 147 | 2.235062% |
D | 6577 | 1273 | 19.355329% |
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 | 8699 | 6577 | 0 | 0 | 0.00% | 0.00% |  |
B | 8699 | 6576 | 26 | 26 | 0.30% | 0.40% |  |
C | 8699 | 6576 | 11 | 11 | 0.13% | 0.17% |  |
D | 8699 | 6576 | 420 | 420 | 4.83% | 6.39% |  |
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 | 43275 | 497.19 | 391 | 385 | 86.3 |
A | 13 | 6 | 12279 | 137.88 | 391 | 385 | 86.3 |
A | 13 | 254 | 11087 | 124.06 | 391 | 385 | 86.3 |
B | 5 | 172 | 570706 | 7480.78 | 384 | 378 | 76.2 |
B | 0 | 189 | 194935 | 2551.93 | 384 | 378 | 76.2 |
B | 0 | 190 | 156124 | 2042.86 | 384 | 378 | 76.2 |
C | 15 | 214 | 262719 | 3152.97 | 372 | 370 | 83.2 |
C | 0 | 207 | 128392 | 1538.59 | 372 | 370 | 83.2 |
C | 0 | 10 | 98864 | 1183.72 | 372 | 370 | 83.2 |
D | 8 | 195 | 3009329 | 35378.52 | 355 | 344 | 85.1 |
D | 1 | 47 | 1121534 | 13182.53 | 355 | 344 | 85.1 |
D | 1 | 52 | 816177 | 9592.26 | 355 | 344 | 85.1 |
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 |  |