Observation information
- date-obs: 2018-10-14
- time-obs: 11:55:48.181100000
- date-end: 2018-10-14
- time-end: 23:05:49.165400000
- obs_id: C04_008T01_9000002434
- exposure: 23080.1374907
- sourceid: Crab Offset
- observer: arrao
- ra_pnt: 83.428
- dec_pnt: 22.015
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1C04_008T01_9000002434cztM0_level2_bc.evt
| modeM0/AS1C04_008T01_9000002434cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,235,278,080 | 512,856,000 |
Size | 1.2 GB
| 489.1 MB
|
Events in quadrant A | 8,522,934 | 3,351,762 |
Events in quadrant B | 9,104,171 | 3,431,002 |
Events in quadrant C | 7,979,402 | 3,289,452 |
Events in quadrant D | 9,530,821 | 3,174,577 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 74810 | 0 |
B | 0 | 77134 | 0 |
C | 0 | 72844 | 0 |
D | 0 | 77341 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 678 | 0 |
B | 0 | 678 | 0 |
C | 0 | 678 | 0 |
D | 0 | 678 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 70 | 0 |
B | 0 | 70 | 0 |
C | 0 | 70 | 0 |
D | 0 | 70 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 33312 | 479 | 1.437920% |
B | 33312 | 537 | 1.612032% |
C | 33312 | 515 | 1.545989% |
D | 33312 | 765 | 2.296470% |
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 | 40203 | 33309 | 10 | 10 | 0.02% | 0.03% |  |
B | 40203 | 33308 | 7 | 7 | 0.02% | 0.02% |  |
C | 40203 | 33309 | 2 | 2 | 0.00% | 0.01% |  |
D | 40203 | 33307 | 79 | 79 | 0.20% | 0.24% |  |
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 | 15 | 174 | 1418354 | 3449.03 | 1850 | 1821 | 410.7 |
A | 0 | 226 | 12115 | 25.06 | 1850 | 1821 | 410.7 |
A | 12 | 194 | 11746 | 24.17 | 1850 | 1821 | 410.7 |
B | 4 | 48 | 453728 | 1233.61 | 1884 | 1848 | 366.3 |
B | 15 | 35 | 446761 | 1214.59 | 1884 | 1848 | 366.3 |
B | 4 | 173 | 282654 | 766.59 | 1884 | 1848 | 366.3 |
C | 3 | 233 | 825163 | 1925.06 | 1802 | 1802 | 427.7 |
C | 7 | 247 | 206719 | 479.11 | 1802 | 1802 | 427.7 |
C | 0 | 207 | 23177 | 49.98 | 1802 | 1802 | 427.7 |
D | 12 | 110 | 752760 | 1764.53 | 1811 | 1754 | 425.6 |
D | 12 | 218 | 703846 | 1649.6 | 1811 | 1754 | 425.6 |
D | 2 | 33 | 654163 | 1532.87 | 1811 | 1754 | 425.6 |
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 |  |