Observation information
- date-obs: 2017-07-15
- time-obs: 23:27:59.699900000
- date-end: 2017-07-16
- time-end: 13:46:02.744600000
- obs_id: A02_029T01_9000001386
- exposure: 24791.5311918
- sourceid: 4U 1724-30
- observer: sudip
- ra_pnt: 261.8885
- dec_pnt: -30.80206
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A02_029T01_9000001386cztM0_level2.evt
| modeM0/AS1A02_029T01_9000001386cztM0_level2_quad_clean.evt
|
Size (bytes) | 3,083,688,000 | 524,741,760 |
Size | 2.9 GB
| 500.4 MB
|
Events in quadrant A | 23,892,060 | 3,234,302 |
Events in quadrant B | 22,394,256 | 3,301,595 |
Events in quadrant C | 20,253,338 | 3,281,768 |
Events in quadrant D | 23,943,203 | 3,118,825 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 99664 | 0 |
B | 0 | 93498 | 0 |
C | 0 | 88692 | 0 |
D | 0 | 100012 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 880 | 0 |
B | 0 | 876 | 0 |
C | 0 | 878 | 0 |
D | 0 | 876 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 83 | 0 |
B | 0 | 83 | 0 |
C | 0 | 83 | 0 |
D | 0 | 82 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 43047 | 754 | 1.751574% |
B | 43074 | 953 | 2.212472% |
C | 43111 | 546 | 1.266498% |
D | 43091 | 1267 | 2.940289% |
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 | 51484 | 43321 | 26 | 26 | 0.05% | 0.06% |  |
B | 51484 | 43317 | 168 | 168 | 0.33% | 0.39% |  |
C | 51484 | 43325 | 10 | 10 | 0.02% | 0.02% |  |
D | 51484 | 43331 | 697 | 697 | 1.35% | 1.61% |  |
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 | 1 | 162 | 1560838 | 1454.67 | 5280 | 5170 | 1069.4 |
A | 1 | 178 | 704987 | 654.38 | 5280 | 5170 | 1069.4 |
A | 1 | 161 | 651331 | 604.21 | 5280 | 5170 | 1069.4 |
B | 10 | 245 | 505859 | 497.5 | 5323 | 5206 | 1006.3 |
B | 4 | 173 | 489800 | 481.54 | 5323 | 5206 | 1006.3 |
B | 0 | 219 | 268974 | 262.11 | 5323 | 5206 | 1006.3 |
C | 14 | 234 | 84262 | 66.65 | 5171 | 5190 | 1186.4 |
C | 13 | 61 | 38726 | 28.27 | 5171 | 5190 | 1186.4 |
C | 8 | 222 | 15005 | 8.27 | 5171 | 5190 | 1186.4 |
D | 1 | 52 | 2841790 | 2328.12 | 5089 | 4978 | 1218.5 |
D | 2 | 152 | 594935 | 484.17 | 5089 | 4978 | 1218.5 |
D | 12 | 233 | 576689 | 469.19 | 5089 | 4978 | 1218.5 |
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 |  |