Observation information
- date-obs: 2022-05-15
- time-obs: 00:42:57.983900000
- date-end: 2022-05-15
- time-end: 16:03:29.960700000
- obs_id: A11_080T01_9000005146
- exposure: 19605.9877118
- 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_9000005146cztM0_level2_bc.evt
| modeM0/AS1A11_080T01_9000005146cztM0_level2_quad_clean.evt
|
Size (bytes) | 2,117,776,320 | 487,854,720 |
Size | 2.0 GB
| 465.3 MB
|
Events in quadrant A | 19,939,970 | 2,977,039 |
Events in quadrant B | 11,155,237 | 3,176,818 |
Events in quadrant C | 12,853,513 | 3,073,180 |
Events in quadrant D | 17,563,325 | 2,900,617 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 167 | 0 |
B | 0 | 167 | 0 |
C | 0 | 167 | 0 |
D | 0 | 167 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 788 | 0 |
B | 0 | 788 | 0 |
C | 0 | 788 | 0 |
D | 0 | 788 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 137199 | 0 |
B | 0 | 88955 | 0 |
C | 0 | 93552 | 0 |
D | 0 | 112805 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 38556 | 6410 | 16.625169% |
B | 38556 | 382 | 0.990767% |
C | 38556 | 1283 | 3.327627% |
D | 38556 | 2297 | 5.957568% |
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 | 55232 | 38565 | 596 | 596 | 1.08% | 1.55% | |
B | 55232 | 38558 | 9 | 9 | 0.02% | 0.02% | |
C | 55232 | 38557 | 117 | 117 | 0.21% | 0.30% | |
D | 55232 | 38558 | 291 | 291 | 0.53% | 0.75% | |
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 | 8753968 | 18680.13 | 2051 | 2012 | 468.5 |
A | 7 | 48 | 2329235 | 4967.21 | 2051 | 2012 | 468.5 |
A | 10 | 83 | 839227 | 1786.95 | 2051 | 2012 | 468.5 |
B | 5 | 255 | 664198 | 1475.18 | 2233 | 2202 | 448.8 |
B | 5 | 172 | 494251 | 1096.48 | 2233 | 2202 | 448.8 |
B | 4 | 232 | 462317 | 1025.31 | 2233 | 2202 | 448.8 |
C | 15 | 208 | 1648140 | 3364.83 | 2118 | 2123 | 489.2 |
C | 15 | 214 | 1494732 | 3051.23 | 2118 | 2123 | 489.2 |
C | 0 | 10 | 1119016 | 2283.18 | 2118 | 2123 | 489.2 |
D | 7 | 223 | 3920464 | 7622.25 | 2133 | 2070 | 514.1 |
D | 2 | 250 | 1541009 | 2993.62 | 2133 | 2070 | 514.1 |
D | 13 | 249 | 1245637 | 2419.05 | 2133 | 2070 | 514.1 |
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 | |