Observation information
- date-obs: 2017-06-15
- time-obs: 12:27:33.925000000
- date-end: 2017-06-15
- time-end: 17:22:41.913800000
- obs_id: G07_027T01_9000001304
- exposure: 6779.14775091
- sourceid: Cygnus X-1
- observer: santoshv
- ra_pnt: 299.5903
- dec_pnt: 35.20161
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1G07_027T01_9000001304cztM0_level2.evt
| modeM0/AS1G07_027T01_9000001304cztM0_level2_quad_clean.evt
|
Size (bytes) | 774,489,600 | 145,157,760 |
Size | 738.6 MB
| 138.4 MB
|
Events in quadrant A | 7,867,968 | 918,560 |
Events in quadrant B | 4,873,815 | 961,055 |
Events in quadrant C | 4,622,917 | 940,231 |
Events in quadrant D | 5,440,205 | 909,832 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 29762 | 0 |
B | 0 | 20581 | 0 |
C | 0 | 19928 | 0 |
D | 0 | 22482 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 25 | 0 |
B | 0 | 25 | 0 |
C | 0 | 26 | 0 |
D | 0 | 26 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 210 | 0 |
B | 0 | 200 | 0 |
C | 0 | 196 | 0 |
D | 0 | 202 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 9410 | 337 | 3.581296% |
B | 9665 | 143 | 1.479565% |
C | 9658 | 116 | 1.201077% |
D | 9657 | 241 | 2.495599% |
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 | 17661 | 9791 | 103 | 103 | 0.58% | 1.05% |  |
B | 17707 | 10079 | 6 | 6 | 0.03% | 0.06% |  |
C | 17684 | 10087 | 2 | 2 | 0.01% | 0.02% |  |
D | 17680 | 10058 | 93 | 93 | 0.53% | 0.92% |  |
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 | 5 | 2987540 | 12627.24 | 1160 | 1137 | 236.5 |
A | 4 | 2 | 223546 | 940.4 | 1160 | 1137 | 236.5 |
A | 5 | 16 | 63688 | 264.48 | 1160 | 1137 | 236.5 |
B | 0 | 214 | 85096 | 361.93 | 1208 | 1179 | 231.9 |
B | 0 | 245 | 30634 | 127.04 | 1208 | 1179 | 231.9 |
B | 0 | 230 | 29546 | 122.35 | 1208 | 1179 | 231.9 |
C | 14 | 234 | 21114 | 73.24 | 1176 | 1186 | 272.1 |
C | 13 | 61 | 8785 | 27.93 | 1176 | 1186 | 272.1 |
C | 14 | 67 | 7213 | 22.15 | 1176 | 1186 | 272.1 |
D | 1 | 52 | 582996 | 1849.48 | 1157 | 1135 | 314.6 |
D | 12 | 233 | 220577 | 697.51 | 1157 | 1135 | 314.6 |
D | 2 | 136 | 109583 | 344.71 | 1157 | 1135 | 314.6 |
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 |  |