Observation information
- date-obs: 2023-05-18
- time-obs: 22:00:11.126000000
- date-end: 2023-05-19
- time-end: 00:18:34.124400000
- obs_id: T05_106T01_9000005642
- exposure: 4977.23307556
- 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_41298cztM0_level2.fits
| modeM0/AS1T05_106T01_9000005642_41298cztM0_level2_quad_clean.evt
|
Size (bytes) | 402,704,640 | 88,989,120 |
Size | 384.0 MB
| 84.9 MB
|
Events in quadrant A | 3,411,902 | 599,809 |
Events in quadrant B | 2,449,315 | 639,006 |
Events in quadrant C | 3,203,329 | 568,329 |
Events in quadrant D | 5,417,318 | 505,022 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 13525 | 3 |
B | 0 | 11078 | 2 |
C | 0 | 12907 | 2 |
D | 0 | 19791 | 2 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 112 | 0 |
B | 0 | 112 | 0 |
C | 0 | 112 | 0 |
D | 0 | 112 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 28 | 0 |
B | 0 | 28 | 0 |
C | 0 | 28 | 0 |
D | 0 | 29 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5463 | 121 | 2.214900% |
B | 5463 | 6 | 0.109830% |
C | 5463 | 273 | 4.997254% |
D | 5463 | 576 | 10.543657% |
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 | 7257 | 5464 | 116 | 116 | 1.60% | 2.12% |  |
B | 7257 | 5464 | 0 | 0 | 0.00% | 0.00% |  |
C | 7257 | 5464 | 265 | 265 | 3.65% | 4.85% |  |
D | 7257 | 5464 | 557 | 557 | 7.68% | 10.19% |  |
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 | 6 | 10 | 582626 | 4862.25 | 586 | 574 | 119.7 |
A | 10 | 83 | 504868 | 4212.69 | 586 | 574 | 119.7 |
A | 12 | 189 | 55059 | 455.15 | 586 | 574 | 119.7 |
B | 7 | 202 | 48882 | 419.47 | 596 | 579 | 115.2 |
B | 0 | 229 | 26355 | 223.84 | 596 | 579 | 115.2 |
B | 12 | 111 | 14866 | 124.07 | 596 | 579 | 115.2 |
C | 0 | 10 | 732048 | 5505.17 | 569 | 572 | 132.9 |
C | 15 | 214 | 229727 | 1724.64 | 569 | 572 | 132.9 |
C | 3 | 233 | 12637 | 90.8 | 569 | 572 | 132.9 |
D | 2 | 249 | 985716 | 7268.8 | 557 | 542 | 135.5 |
D | 2 | 120 | 872561 | 6433.92 | 557 | 542 | 135.5 |
D | 1 | 52 | 431393 | 3178.9 | 557 | 542 | 135.5 |
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 |  |