Observation information
- date-obs: 2017-07-05
- time-obs: 15:40:39.703500000
- date-end: 2017-07-05
- time-end: 15:57:01.702400000
- obs_id: G07_027T01_9000001358
- exposure: 2964.295298
- 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_9000001358cztM0_level2.evt
| modeM0/AS1G07_027T01_9000001358cztM0_level2_quad_clean.evt
|
Size (bytes) | 225,472,320 | 62,254,080 |
Size | 215.0 MB
| 59.4 MB
|
Events in quadrant A | 1,948,862 | 416,774 |
Events in quadrant B | 1,598,766 | 418,396 |
Events in quadrant C | 1,516,807 | 409,649 |
Events in quadrant D | 1,533,134 | 401,511 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 8071 | 0 |
B | 0 | 6969 | 0 |
C | 0 | 6752 | 0 |
D | 0 | 6907 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 32 | 0 |
B | 0 | 32 | 0 |
C | 0 | 32 | 0 |
D | 0 | 33 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 68 | 0 |
B | 0 | 68 | 0 |
C | 0 | 68 | 0 |
D | 0 | 68 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 3366 | 35 | 1.039810% |
B | 3366 | 6 | 0.178253% |
C | 3365 | 3 | 0.089153% |
D | 3363 | 8 | 0.237883% |
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 | 3366 | 3366 | 4 | 4 | 0.12% | 0.12% |  |
B | 3366 | 3366 | 1 | 1 | 0.03% | 0.03% |  |
C | 3366 | 3366 | 0 | 0 | 0.00% | 0.00% |  |
D | 3366 | 3366 | 5 | 5 | 0.15% | 0.15% |  |
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 | 166071 | 2058.77 | 393 | 387 | 80.5 |
A | 1 | 178 | 89678 | 1109.52 | 393 | 387 | 80.5 |
A | 1 | 161 | 83296 | 1030.22 | 393 | 387 | 80.5 |
B | 4 | 80 | 46737 | 617.08 | 395 | 388 | 75.1 |
B | 12 | 111 | 8015 | 101.54 | 395 | 388 | 75.1 |
B | 10 | 252 | 6818 | 85.61 | 395 | 388 | 75.1 |
C | 9 | 236 | 3003 | 28.9 | 388 | 390 | 90.4 |
C | 13 | 61 | 2747 | 26.07 | 388 | 390 | 90.4 |
C | 3 | 202 | 962 | 6.33 | 388 | 390 | 90.4 |
D | 1 | 52 | 37407 | 398.43 | 385 | 377 | 92.9 |
D | 2 | 234 | 18532 | 195.34 | 385 | 377 | 92.9 |
D | 2 | 14 | 12603 | 131.55 | 385 | 377 | 92.9 |
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 |  |