Observation information
- date-obs: 2017-05-08
- time-obs: 09:53:56.157500000
- date-end: 2017-05-08
- time-end: 16:32:17.162800000
- obs_id: G07_027T01_9000001210
- exposure: 11966.5693479
- 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_9000001210cztM0_level2.evt
| modeM0/AS1G07_027T01_9000001210cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,354,550,400 | 260,084,160 |
Size | 1.3 GB
| 248.0 MB
|
Events in quadrant A | 9,771,165 | 1,639,715 |
Events in quadrant B | 9,668,979 | 1,645,917 |
Events in quadrant C | 9,447,091 | 1,644,124 |
Events in quadrant D | 10,795,471 | 1,582,639 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 41785 | 0 |
B | 0 | 41283 | 0 |
C | 0 | 40984 | 0 |
D | 0 | 44934 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 402 | 0 |
B | 0 | 402 | 0 |
C | 0 | 402 | 0 |
D | 0 | 402 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 42 | 0 |
B | 0 | 42 | 0 |
C | 0 | 42 | 0 |
D | 0 | 42 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 19827 | 280 | 1.412216% |
B | 19827 | 249 | 1.255863% |
C | 19827 | 213 | 1.074293% |
D | 19825 | 514 | 2.592686% |
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 | 23902 | 19827 | 29 | 29 | 0.12% | 0.15% |  |
B | 23902 | 19827 | 4 | 4 | 0.02% | 0.02% |  |
C | 23902 | 19827 | 4 | 4 | 0.02% | 0.02% |  |
D | 23902 | 19827 | 226 | 226 | 0.95% | 1.14% |  |
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 | 13 | 251 | 188549 | 375.83 | 2457 | 2412 | 495.3 |
A | 15 | 174 | 103123 | 203.35 | 2457 | 2412 | 495.3 |
A | 5 | 16 | 26403 | 48.44 | 2457 | 2412 | 495.3 |
B | 12 | 111 | 48080 | 97.96 | 2469 | 2408 | 466.2 |
B | 11 | 111 | 39224 | 78.97 | 2469 | 2408 | 466.2 |
B | 14 | 111 | 27470 | 53.75 | 2469 | 2408 | 466.2 |
C | 14 | 234 | 36183 | 60.68 | 2410 | 2425 | 556.4 |
C | 13 | 61 | 18346 | 28.62 | 2410 | 2425 | 556.4 |
C | 14 | 67 | 11643 | 16.57 | 2410 | 2425 | 556.4 |
D | 2 | 152 | 706265 | 1232.61 | 2365 | 2314 | 571.1 |
D | 8 | 195 | 328871 | 571.8 | 2365 | 2314 | 571.1 |
D | 1 | 52 | 273671 | 475.14 | 2365 | 2314 | 571.1 |
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 |  |