Observation information
- date-obs: 2017-11-29
- time-obs: 07:48:14.837200000
- date-end: 2017-11-29
- time-end: 15:18:34.839900000
- obs_id: A04_167T04_9000001734
- exposure: 13445.7842004
- sourceid: NGC 266
- observer: joydeep
- ra_pnt: 12.44917
- dec_pnt: 32.27778
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A04_167T04_9000001734cztM0_level2_bc.evt
| modeM0/AS1A04_167T04_9000001734cztM0_level2_quad_clean.evt
|
Size (bytes) | 900,483,840 | 262,172,160 |
Size | 858.8 MB
| 250.0 MB
|
Events in quadrant A | 4,891,070 | 1,640,846 |
Events in quadrant B | 7,271,207 | 1,609,274 |
Events in quadrant C | 4,038,348 | 1,695,504 |
Events in quadrant D | 9,671,907 | 1,585,627 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 418 | 0 |
B | 0 | 418 | 0 |
C | 0 | 418 | 0 |
D | 0 | 418 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 45982 | 0 |
B | 0 | 55413 | 0 |
C | 0 | 42116 | 0 |
D | 0 | 60374 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 16 | 0 |
B | 0 | 16 | 0 |
C | 0 | 16 | 0 |
D | 0 | 17 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 20469 | 630 | 3.077825% |
B | 20469 | 1414 | 6.908007% |
C | 20469 | 304 | 1.485173% |
D | 20469 | 783 | 3.825297% |
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 | 26595 | 20474 | 0 | 0 | 0.00% | 0.00% |  |
B | 26594 | 20468 | 65 | 65 | 0.24% | 0.32% |  |
C | 26594 | 20471 | 0 | 0 | 0.00% | 0.00% |  |
D | 26594 | 20472 | 82 | 82 | 0.31% | 0.40% |  |
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 | 8 | 15 | 513672 | 2312.56 | 1009 | 988 | 221.7 |
A | 1 | 162 | 193099 | 866.55 | 1009 | 988 | 221.7 |
A | 14 | 235 | 77495 | 345.1 | 1009 | 988 | 221.7 |
B | 4 | 239 | 1638823 | 8575.41 | 999 | 973 | 191.0 |
B | 3 | 64 | 756062 | 3953.47 | 999 | 973 | 191.0 |
B | 15 | 204 | 506064 | 2644.54 | 999 | 973 | 191.0 |
C | 14 | 234 | 12342 | 49.34 | 1024 | 1009 | 229.7 |
C | 8 | 128 | 7312 | 27.44 | 1024 | 1009 | 229.7 |
C | 13 | 61 | 6161 | 22.43 | 1024 | 1009 | 229.7 |
D | 8 | 195 | 2973781 | 12354.37 | 1013 | 972 | 240.6 |
D | 1 | 52 | 1887006 | 7837.96 | 1013 | 972 | 240.6 |
D | 9 | 85 | 232502 | 962.19 | 1013 | 972 | 240.6 |
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 |  |