Observation information
- date-obs: 2018-09-17
- time-obs: 08:30:11.100400000
- date-end: 2018-09-18
- time-end: 13:55:00.061900000
- obs_id: A04_230T01_9000002374
- exposure: 58661.410036
- sourceid: Her X-1
- observer: sumanbala
- ra_pnt: 254.4575
- dec_pnt: 35.34233
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A04_230T01_9000002374cztM0_level2_bc.evt
| modeM0/AS1A04_230T01_9000002374cztM0_level2_quad_clean.evt
|
Size (bytes) | 3,278,073,600 | 1,242,233,280 |
Size | 3.1 GB
| 1.2 GB
|
Events in quadrant A | 23,082,647 | 8,123,414 |
Events in quadrant B | 22,713,951 | 8,080,853 |
Events in quadrant C | 18,731,561 | 7,725,888 |
Events in quadrant D | 28,626,808 | 7,536,824 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 1830 | 0 |
B | 0 | 1830 | 0 |
C | 0 | 1830 | 0 |
D | 0 | 1830 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 160 | 0 |
B | 0 | 160 | 0 |
C | 0 | 160 | 0 |
D | 0 | 160 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 199125 | 0 |
B | 0 | 201644 | 0 |
C | 0 | 187841 | 0 |
D | 0 | 219386 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 89875 | 1201 | 1.336300% |
B | 89875 | 1599 | 1.779138% |
C | 89875 | 1167 | 1.298470% |
D | 89875 | 3074 | 3.420306% |
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 | 105891 | 89865 | 21 | 21 | 0.02% | 0.02% |  |
B | 105891 | 89866 | 15 | 15 | 0.01% | 0.02% |  |
C | 105891 | 89863 | 2 | 2 | 0.00% | 0.00% |  |
D | 105891 | 89862 | 622 | 622 | 0.59% | 0.69% |  |
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 | 3 | 80 | 3095132 | 2963.72 | 4816 | 4734 | 1042.7 |
A | 13 | 210 | 451752 | 428.69 | 4816 | 4734 | 1042.7 |
A | 15 | 174 | 391930 | 371.32 | 4816 | 4734 | 1042.7 |
B | 7 | 220 | 956996 | 1062.98 | 4808 | 4702 | 895.9 |
B | 0 | 189 | 747482 | 829.11 | 4808 | 4702 | 895.9 |
B | 0 | 190 | 367702 | 405.19 | 4808 | 4702 | 895.9 |
C | 3 | 233 | 537115 | 494.82 | 4592 | 4584 | 1076.2 |
C | 0 | 207 | 368604 | 338.24 | 4592 | 4584 | 1076.2 |
C | 7 | 247 | 56959 | 48.67 | 4592 | 4584 | 1076.2 |
D | 1 | 52 | 6180888 | 5600.92 | 4697 | 4531 | 1102.7 |
D | 12 | 218 | 1891161 | 1710.86 | 4697 | 4531 | 1102.7 |
D | 13 | 232 | 669372 | 602.9 | 4697 | 4531 | 1102.7 |
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 |  |