Observation information
- date-obs: 2022-05-18
- time-obs: 20:01:39.802900000
- date-end: 2022-05-19
- time-end: 00:13:31.795100000
- obs_id: A11_080T01_9000005146
- exposure: 7631.02905919
- 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_35892cztM0_level2.evt
| modeM0/AS1A11_080T01_9000005146_35892cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,008,933,120 | 165,214,080 |
Size | 962.2 MB
| 157.6 MB
|
Events in quadrant A | 5,513,321 | 1,110,084 |
Events in quadrant B | 7,512,598 | 1,072,771 |
Events in quadrant C | 5,762,811 | 1,090,748 |
Events in quadrant D | 11,018,536 | 962,301 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 40 | 0 |
B | 0 | 40 | 0 |
C | 0 | 40 | 0 |
D | 0 | 40 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 228 | 0 |
B | 0 | 228 | 0 |
C | 0 | 228 | 0 |
D | 0 | 228 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 23244 | 4 |
B | 0 | 29720 | 3 |
C | 0 | 23665 | 3 |
D | 0 | 40369 | 3 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 11084 | 22 | 0.198484% |
B | 11084 | 664 | 5.990617% |
C | 11084 | 100 | 0.902201% |
D | 11084 | 1650 | 14.886323% |
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 | 15112 | 11087 | 4 | 4 | 0.03% | 0.04% | |
B | 15112 | 11087 | 411 | 411 | 2.72% | 3.71% | |
C | 15112 | 11087 | 63 | 63 | 0.42% | 0.57% | |
D | 15112 | 11087 | 1743 | 1743 | 11.53% | 15.72% | |
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 | 10 | 83 | 284544 | 1071.9 | 1305 | 1282 | 264.3 |
A | 15 | 169 | 114056 | 426.75 | 1305 | 1282 | 264.3 |
A | 13 | 6 | 28131 | 101.6 | 1305 | 1282 | 264.3 |
B | 5 | 172 | 869270 | 3556.26 | 1271 | 1242 | 244.1 |
B | 5 | 63 | 760614 | 3111.1 | 1271 | 1242 | 244.1 |
B | 5 | 255 | 560729 | 2292.18 | 1271 | 1242 | 244.1 |
C | 15 | 214 | 461761 | 1560.39 | 1263 | 1276 | 295.1 |
C | 0 | 10 | 259791 | 876.0 | 1263 | 1276 | 295.1 |
C | 0 | 207 | 106472 | 356.47 | 1263 | 1276 | 295.1 |
D | 1 | 52 | 2690321 | 9017.62 | 1212 | 1180 | 298.2 |
D | 12 | 227 | 2401810 | 8050.15 | 1212 | 1180 | 298.2 |
D | 2 | 250 | 393601 | 1315.92 | 1212 | 1180 | 298.2 |
Detector plane histogram (DPH)
Histogram calculated using DETX and DETY for each event in the final _common_clean file
Quadrant A |
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Quadrant B |
Quadrant D |
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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 | |