Observation information
- date-obs: 2018-04-12
- time-obs: 15:29:21.622500000
- date-end: 2018-04-15
- time-end: 09:49:22.456100000
- obs_id: G08_062T01_9000002038
- exposure: 133130.277179
- 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/AS1G08_062T01_9000002038cztM0_level2_bc.evt
| modeM0/AS1G08_062T01_9000002038cztM0_level2_quad_clean.evt
|
Size (bytes) | 8,065,995,840 | 2,905,871,040 |
Size | 7.5 GB
| 2.7 GB
|
Events in quadrant A | 47,315,788 | 18,454,217 |
Events in quadrant B | 50,889,706 | 18,252,188 |
Events in quadrant C | 52,579,769 | 19,107,208 |
Events in quadrant D | 79,529,689 | 18,145,445 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 333 | 0 |
B | 0 | 333 | 0 |
C | 0 | 333 | 0 |
D | 0 | 333 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 440299 | 0 |
B | 0 | 455080 | 0 |
C | 0 | 452856 | 0 |
D | 0 | 546173 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 4182 | 0 |
B | 0 | 4182 | 0 |
C | 0 | 4182 | 0 |
D | 0 | 4182 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 205292 | 3276 | 1.595776% |
B | 205292 | 3669 | 1.787210% |
C | 205292 | 3998 | 1.947470% |
D | 205292 | 7330 | 3.570524% |
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 | 238803 | 205297 | 232 | 232 | 0.10% | 0.11% |  |
B | 238803 | 205293 | 157 | 157 | 0.07% | 0.08% |  |
C | 238803 | 205304 | 294 | 294 | 0.12% | 0.14% |  |
D | 238803 | 205298 | 523 | 523 | 0.22% | 0.25% |  |
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 | 9 | 143 | 2526836 | 1050.79 | 10919 | 10716 | 2394.5 |
A | 0 | 23 | 1567687 | 650.23 | 10919 | 10716 | 2394.5 |
A | 15 | 69 | 635502 | 260.93 | 10919 | 10716 | 2394.5 |
B | 0 | 219 | 2602324 | 1271.44 | 10882 | 10630 | 2038.4 |
B | 3 | 64 | 1151764 | 559.82 | 10882 | 10630 | 2038.4 |
B | 4 | 173 | 1086377 | 527.74 | 10882 | 10630 | 2038.4 |
C | 4 | 254 | 4035576 | 1587.05 | 10938 | 10756 | 2536.0 |
C | 3 | 233 | 3110508 | 1222.28 | 10938 | 10756 | 2536.0 |
C | 9 | 236 | 2429920 | 953.91 | 10938 | 10756 | 2536.0 |
D | 5 | 222 | 14384729 | 5118.62 | 10801 | 10400 | 2808.2 |
D | 1 | 52 | 7878935 | 2801.94 | 10801 | 10400 | 2808.2 |
D | 13 | 168 | 5933755 | 2109.27 | 10801 | 10400 | 2808.2 |
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 |  |