Observation information
- date-obs: 2022-05-15
- time-obs: 22:20:18.951000000
- date-end: 2022-05-16
- time-end: 02:34:14.942100000
- obs_id: A11_080T01_9000005146
- exposure: 6774.5513119
- 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_35849cztM0_level2.evt
| modeM0/AS1A11_080T01_9000005146_35849cztM0_level2_quad_clean.evt
|
Size (bytes) | 816,160,320 | 149,270,400 |
Size | 778.4 MB
| 142.4 MB
|
Events in quadrant A | 6,464,432 | 949,729 |
Events in quadrant B | 5,543,546 | 954,272 |
Events in quadrant C | 5,664,740 | 948,265 |
Events in quadrant D | 6,290,578 | 896,998 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 41 | 0 |
B | 0 | 41 | 0 |
C | 0 | 41 | 0 |
D | 0 | 41 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 230 | 0 |
B | 0 | 230 | 0 |
C | 0 | 230 | 0 |
D | 0 | 230 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 26511 | 4 |
B | 0 | 23823 | 3 |
C | 0 | 23584 | 3 |
D | 0 | 26222 | 3 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 11147 | 38 | 0.340899% |
B | 11147 | 48 | 0.430609% |
C | 11147 | 63 | 0.565174% |
D | 11147 | 187 | 1.677581% |
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 | 15236 | 11150 | 30 | 30 | 0.20% | 0.27% | |
B | 15236 | 11150 | 21 | 21 | 0.14% | 0.19% | |
C | 15236 | 11150 | 45 | 45 | 0.30% | 0.40% | |
D | 15236 | 11150 | 132 | 132 | 0.87% | 1.18% | |
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 | 1118995 | 4249.08 | 1305 | 1285 | 263.0 |
A | 10 | 83 | 282913 | 1070.63 | 1305 | 1285 | 263.0 |
A | 13 | 6 | 20796 | 74.17 | 1305 | 1285 | 263.0 |
B | 5 | 172 | 182642 | 738.51 | 1292 | 1260 | 245.6 |
B | 0 | 213 | 133506 | 538.45 | 1292 | 1260 | 245.6 |
B | 0 | 214 | 37928 | 149.3 | 1292 | 1260 | 245.6 |
C | 15 | 214 | 465756 | 1583.24 | 1265 | 1274 | 293.4 |
C | 0 | 10 | 210162 | 712.02 | 1265 | 1274 | 293.4 |
C | 0 | 207 | 42534 | 140.64 | 1265 | 1274 | 293.4 |
D | 13 | 249 | 531543 | 1739.94 | 1254 | 1222 | 304.8 |
D | 8 | 195 | 230410 | 751.95 | 1254 | 1222 | 304.8 |
D | 10 | 118 | 189123 | 616.49 | 1254 | 1222 | 304.8 |
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 | |