Observation information
- date-obs: 2018-01-20
- time-obs: 23:15:09.421100000
- date-end: 2018-01-22
- time-end: 00:36:36.382000000
- obs_id: A04_230T01_9000001854
- exposure: 52072.3658426
- 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_9000001854cztM0_level2_bc.evt
| modeM0/AS1A04_230T01_9000001854cztM0_level2_quad_clean.evt
|
Size (bytes) | 2,866,999,680 | 1,067,212,800 |
Size | 2.7 GB
| 1017.8 MB
|
Events in quadrant A | 17,754,122 | 6,823,704 |
Events in quadrant B | 18,981,640 | 6,940,745 |
Events in quadrant C | 16,071,742 | 6,824,105 |
Events in quadrant D | 28,637,368 | 6,321,611 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 123 | 0 |
B | 0 | 123 | 0 |
C | 0 | 123 | 0 |
D | 0 | 123 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 1606 | 0 |
B | 0 | 1606 | 0 |
C | 0 | 1606 | 0 |
D | 0 | 1606 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 172560 | 0 |
B | 0 | 174225 | 0 |
C | 0 | 163680 | 0 |
D | 0 | 207158 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 78986 | 1063 | 1.345808% |
B | 78986 | 1582 | 2.002887% |
C | 78986 | 667 | 0.844453% |
D | 78986 | 4205 | 5.323728% |
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 | 91003 | 78989 | 0 | 0 | 0.00% | 0.00% |  |
B | 91003 | 78985 | 14 | 14 | 0.02% | 0.02% |  |
C | 91003 | 78986 | 2 | 2 | 0.00% | 0.00% |  |
D | 91003 | 78986 | 1185 | 1185 | 1.30% | 1.50% |  |
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 | 674440 | 751.49 | 4108 | 4031 | 892.1 |
A | 12 | 189 | 557059 | 619.91 | 4108 | 4031 | 892.1 |
A | 8 | 15 | 343758 | 380.81 | 4108 | 4031 | 892.1 |
B | 4 | 239 | 1957637 | 2499.61 | 4151 | 4044 | 781.6 |
B | 0 | 214 | 283391 | 357.42 | 4151 | 4044 | 781.6 |
B | 3 | 64 | 191419 | 239.75 | 4151 | 4044 | 781.6 |
C | 15 | 208 | 101596 | 110.14 | 4044 | 3998 | 886.1 |
C | 3 | 233 | 101282 | 109.79 | 4044 | 3998 | 886.1 |
C | 13 | 61 | 24026 | 22.6 | 4044 | 3998 | 886.1 |
D | 1 | 52 | 9297638 | 10146.88 | 3932 | 3798 | 915.9 |
D | 7 | 80 | 994890 | 1082.06 | 3932 | 3798 | 915.9 |
D | 8 | 195 | 821059 | 892.27 | 3932 | 3798 | 915.9 |
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 |  |