Observation information
- date-obs: 2017-04-17
- time-obs: 18:45:52.368300000
- date-end: 2017-04-17
- time-end: 23:33:36.368400000
- obs_id: G07_027T01_9000001180
- exposure: 10818.5093436
- 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_9000001180cztM0_level2.evt
| modeM0/AS1G07_027T01_9000001180cztM0_level2_quad_clean.evt
|
Size (bytes) | 984,277,440 | 220,466,880 |
Size | 938.7 MB
| 210.3 MB
|
Events in quadrant A | 6,951,470 | 1,422,257 |
Events in quadrant B | 7,705,036 | 1,428,462 |
Events in quadrant C | 6,711,925 | 1,433,521 |
Events in quadrant D | 7,437,016 | 1,370,695 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 24 | 0 |
B | 0 | 24 | 0 |
C | 0 | 24 | 0 |
D | 0 | 24 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 30610 | 0 |
B | 0 | 32526 | 0 |
C | 0 | 30102 | 0 |
D | 0 | 32466 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 304 | 0 |
B | 0 | 304 | 0 |
C | 0 | 304 | 0 |
D | 0 | 304 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 14820 | 59 | 0.398111% |
B | 14820 | 112 | 0.755735% |
C | 14820 | 35 | 0.236167% |
D | 14820 | 163 | 1.099865% |
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 | 17265 | 14823 | 9 | 9 | 0.05% | 0.06% |  |
B | 17265 | 14823 | 24 | 24 | 0.14% | 0.16% |  |
C | 17265 | 14822 | 0 | 0 | 0.00% | 0.00% |  |
D | 17265 | 14823 | 101 | 101 | 0.58% | 0.68% |  |
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 | 5 | 16 | 127387 | 347.11 | 1765 | 1730 | 362.0 |
A | 13 | 248 | 20011 | 50.5 | 1765 | 1730 | 362.0 |
A | 0 | 226 | 16338 | 40.35 | 1765 | 1730 | 362.0 |
B | 4 | 48 | 350616 | 1047.72 | 1768 | 1728 | 333.0 |
B | 0 | 214 | 233986 | 697.48 | 1768 | 1728 | 333.0 |
B | 5 | 255 | 72537 | 212.64 | 1768 | 1728 | 333.0 |
C | 13 | 61 | 12834 | 28.01 | 1716 | 1730 | 396.4 |
C | 8 | 128 | 8381 | 16.78 | 1716 | 1730 | 396.4 |
C | 12 | 4 | 7805 | 15.33 | 1716 | 1730 | 396.4 |
D | 4 | 95 | 249640 | 553.61 | 1688 | 1649 | 447.9 |
D | 7 | 71 | 178396 | 394.57 | 1688 | 1649 | 447.9 |
D | 2 | 14 | 137526 | 303.33 | 1688 | 1649 | 447.9 |
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 |  |