Observation information
- date-obs: 2017-01-09
- time-obs: 16:43:15.889000000
- date-end: 2017-01-10
- time-end: 01:41:49.904700000
- obs_id: A02_111T01_9000000954
- exposure: 20971.7656155
- sourceid: Cen X-3
- observer: nirmal
- ra_pnt: 170.3158
- dec_pnt: -60.623
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A02_111T01_9000000954cztM0_level2.evt
| modeM0/AS1A02_111T01_9000000954cztM0_level2_quad_clean.evt
|
Size (bytes) | 2,030,022,720 | 388,494,720 |
Size | 1.9 GB
| 370.5 MB
|
Events in quadrant A | 13,453,065 | 2,461,820 |
Events in quadrant B | 15,807,006 | 2,463,221 |
Events in quadrant C | 13,359,962 | 2,437,698 |
Events in quadrant D | 16,814,484 | 2,324,277 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 61696 | 0 |
B | 0 | 67842 | 0 |
C | 0 | 61656 | 0 |
D | 0 | 70561 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 21 | 0 |
B | 0 | 21 | 0 |
C | 0 | 21 | 0 |
D | 0 | 21 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 616 | 0 |
B | 0 | 616 | 0 |
C | 0 | 616 | 0 |
D | 0 | 616 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 30265 | 194 | 0.641004% |
B | 30265 | 686 | 2.266645% |
C | 30265 | 111 | 0.366760% |
D | 30265 | 332 | 1.096977% |
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 | 32290 | 30271 | 0 | 0 | 0.00% | 0.00% |  |
B | 32290 | 30271 | 244 | 244 | 0.76% | 0.81% |  |
C | 32290 | 30271 | 4 | 4 | 0.01% | 0.01% |  |
D | 32290 | 30271 | 126 | 126 | 0.39% | 0.42% |  |
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 | 0 | 226 | 33720 | 43.11 | 3477 | 3399 | 703.4 |
A | 12 | 194 | 32168 | 40.9 | 3477 | 3399 | 703.4 |
A | 13 | 248 | 30634 | 38.72 | 3477 | 3399 | 703.4 |
B | 0 | 219 | 576691 | 876.22 | 3481 | 3393 | 654.3 |
B | 0 | 228 | 562697 | 854.83 | 3481 | 3393 | 654.3 |
B | 4 | 48 | 414285 | 628.0 | 3481 | 3393 | 654.3 |
C | 7 | 247 | 53788 | 64.85 | 3388 | 3400 | 776.9 |
C | 1 | 241 | 35683 | 41.55 | 3388 | 3400 | 776.9 |
C | 12 | 4 | 30449 | 34.81 | 3388 | 3400 | 776.9 |
D | 8 | 195 | 2104360 | 2560.5 | 3374 | 3272 | 820.6 |
D | 14 | 34 | 439023 | 531.03 | 3374 | 3272 | 820.6 |
D | 2 | 136 | 412834 | 499.11 | 3374 | 3272 | 820.6 |
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 |  |