Observation information
- date-obs: 2019-05-17
- time-obs: 11:24:05.247100000
- date-end: 2019-05-18
- time-end: 00:25:00.242800000
- obs_id: A06_003T02_9000002926
- exposure: 19755.2315346
- sourceid: NGC 4395
- observer: hutchingsj
- ra_pnt: 186.4536
- dec_pnt: 33.54693
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A06_003T02_9000002926cztM0_level2_bc.evt
| modeM0/AS1A06_003T02_9000002926cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,225,074,240 | 402,773,760 |
Size | 1.1 GB
| 384.1 MB
|
Events in quadrant A | 6,553,457 | 2,631,932 |
Events in quadrant B | 7,257,405 | 2,663,676 |
Events in quadrant C | 6,279,871 | 2,540,987 |
Events in quadrant D | 14,775,211 | 2,114,714 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 666 | 0 |
B | 0 | 666 | 0 |
C | 0 | 666 | 0 |
D | 0 | 666 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 43 | 0 |
B | 0 | 43 | 0 |
C | 0 | 44 | 0 |
D | 0 | 44 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 67594 | 0 |
B | 0 | 69843 | 0 |
C | 0 | 67434 | 0 |
D | 0 | 110203 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 32685 | 541 | 1.655194% |
B | 32685 | 674 | 2.062108% |
C | 32685 | 643 | 1.967263% |
D | 32685 | 5202 | 15.915558% |
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 | 46856 | 32686 | 11 | 11 | 0.02% | 0.03% |  |
B | 46856 | 32683 | 5 | 5 | 0.01% | 0.02% |  |
C | 46856 | 32686 | 0 | 0 | 0.00% | 0.00% |  |
D | 46856 | 32685 | 414 | 414 | 0.88% | 1.27% |  |
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 | 5 | 16 | 115785 | 312.4 | 1663 | 1629 | 365.4 |
A | 13 | 254 | 25787 | 66.11 | 1663 | 1629 | 365.4 |
A | 11 | 29 | 13314 | 31.98 | 1663 | 1629 | 365.4 |
B | 3 | 112 | 270056 | 837.85 | 1680 | 1637 | 320.4 |
B | 7 | 220 | 189242 | 585.6 | 1680 | 1637 | 320.4 |
B | 4 | 216 | 72798 | 222.12 | 1680 | 1637 | 320.4 |
C | 3 | 233 | 56402 | 143.82 | 1610 | 1596 | 381.1 |
C | 9 | 221 | 12048 | 27.43 | 1610 | 1596 | 381.1 |
C | 7 | 247 | 12045 | 27.42 | 1610 | 1596 | 381.1 |
D | 1 | 20 | 3997144 | 11408.37 | 1482 | 1423 | 350.2 |
D | 1 | 52 | 2733206 | 7799.64 | 1482 | 1423 | 350.2 |
D | 12 | 218 | 1563497 | 4459.95 | 1482 | 1423 | 350.2 |
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 |  |