Observation information
- date-obs: 2023-05-18
- time-obs: 23:38:31.125500000
- date-end: 2023-05-19
- time-end: 02:02:15.123600000
- obs_id: T05_106T01_9000005642
- exposure: 4711.90262747
- sourceid: 4U 1626-67
- observer: cjain
- ra_pnt: 248.0697
- dec_pnt: -67.46095
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1T05_106T01_9000005642_41299cztM0_level2.fits
| modeM0/AS1T05_106T01_9000005642_41299cztM0_level2_quad_clean.evt
|
Size (bytes) | 374,065,920 | 89,161,920 |
Size | 356.7 MB
| 85.0 MB
|
Events in quadrant A | 2,986,004 | 614,680 |
Events in quadrant B | 2,541,970 | 644,672 |
Events in quadrant C | 3,239,907 | 573,213 |
Events in quadrant D | 4,668,833 | 498,580 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 11962 | 3 |
B | 0 | 11060 | 2 |
C | 0 | 12733 | 2 |
D | 0 | 17443 | 2 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 108 | 0 |
B | 0 | 108 | 0 |
C | 0 | 108 | 0 |
D | 0 | 108 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 33 | 0 |
B | 0 | 33 | 0 |
C | 0 | 33 | 0 |
D | 0 | 34 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5265 | 32 | 0.607787% |
B | 5265 | 7 | 0.132953% |
C | 5265 | 284 | 5.394112% |
D | 5265 | 633 | 12.022792% |
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 | 7208 | 5266 | 32 | 32 | 0.44% | 0.61% |  |
B | 7208 | 5266 | 1 | 1 | 0.01% | 0.02% |  |
C | 7208 | 5266 | 275 | 275 | 3.82% | 5.22% |  |
D | 7208 | 5266 | 635 | 635 | 8.81% | 12.06% |  |
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 | 496582 | 4172.75 | 585 | 574 | 118.9 |
A | 6 | 10 | 164346 | 1377.76 | 585 | 574 | 118.9 |
A | 12 | 189 | 60259 | 502.11 | 585 | 574 | 118.9 |
B | 7 | 202 | 150767 | 1327.36 | 591 | 574 | 113.2 |
B | 0 | 229 | 24003 | 207.06 | 591 | 574 | 113.2 |
B | 0 | 245 | 16129 | 137.47 | 591 | 574 | 113.2 |
C | 0 | 10 | 803010 | 6114.74 | 564 | 567 | 131.2 |
C | 15 | 214 | 218866 | 1663.47 | 564 | 567 | 131.2 |
C | 12 | 249 | 17225 | 126.94 | 564 | 567 | 131.2 |
D | 1 | 47 | 1054356 | 7828.86 | 551 | 534 | 134.6 |
D | 2 | 249 | 425250 | 3155.22 | 551 | 534 | 134.6 |
D | 12 | 233 | 356911 | 2647.53 | 551 | 534 | 134.6 |
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 |  |