Observation information
- date-obs: 2022-05-17
- time-obs: 21:47:01.849800000
- date-end: 2022-05-18
- time-end: 01:34:23.842900000
- obs_id: A11_080T01_9000005146
- exposure: 6998.34725979
- sourceid: Cygnus X-1
- observer: ajayratheesh
- ra_pnt: 299.5903
- dec_pnt: 35.20161
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A11_080T01_9000005146_35878cztM0_level2.evt
| modeM0/AS1A11_080T01_9000005146_35878cztM0_level2_quad_clean.evt
|
Size (bytes) | 837,213,120 | 152,907,840 |
Size | 798.4 MB
| 145.8 MB
|
Events in quadrant A | 6,217,474 | 985,957 |
Events in quadrant B | 5,575,654 | 993,959 |
Events in quadrant C | 5,647,484 | 986,384 |
Events in quadrant D | 7,187,838 | 920,679 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 28 | 0 |
B | 0 | 28 | 0 |
C | 0 | 28 | 0 |
D | 0 | 29 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 220 | 0 |
B | 0 | 220 | 0 |
C | 0 | 220 | 0 |
D | 0 | 220 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 25254 | 4 |
B | 0 | 23450 | 3 |
C | 0 | 23169 | 3 |
D | 0 | 28637 | 6 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 10743 | 163 | 1.517267% |
B | 10743 | 86 | 0.800521% |
C | 10743 | 81 | 0.753979% |
D | 10741 | 317 | 2.951308% |
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 | 13547 | 10745 | 132 | 132 | 0.97% | 1.23% | |
B | 13547 | 10745 | 42 | 42 | 0.31% | 0.39% | |
C | 13547 | 10745 | 64 | 64 | 0.47% | 0.60% | |
D | 13547 | 10744 | 229 | 229 | 1.69% | 2.13% | |
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 | 15 | 169 | 536403 | 2109.66 | 1253 | 1231 | 253.7 |
A | 7 | 48 | 482284 | 1896.32 | 1253 | 1231 | 253.7 |
A | 10 | 83 | 279726 | 1097.83 | 1253 | 1231 | 253.7 |
B | 5 | 172 | 353187 | 1481.65 | 1247 | 1218 | 237.6 |
B | 5 | 255 | 123309 | 513.96 | 1247 | 1218 | 237.6 |
B | 4 | 232 | 47030 | 192.85 | 1247 | 1218 | 237.6 |
C | 15 | 214 | 447341 | 1582.68 | 1219 | 1230 | 281.9 |
C | 0 | 10 | 246878 | 871.49 | 1219 | 1230 | 281.9 |
C | 1 | 23 | 192944 | 680.15 | 1219 | 1230 | 281.9 |
D | 8 | 195 | 1163926 | 3928.34 | 1201 | 1169 | 296.0 |
D | 13 | 249 | 511987 | 1725.78 | 1201 | 1169 | 296.0 |
D | 2 | 250 | 226498 | 761.27 | 1201 | 1169 | 296.0 |
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 | |