Observation information
- date-obs: 2023-05-18
- time-obs: 20:10:11.127200000
- date-end: 2023-05-18
- time-end: 22:34:24.125400000
- obs_id: T05_106T01_9000005642
- exposure: 3536.13131893
- 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_41296cztM0_level2.fits
| modeM0/AS1T05_106T01_9000005642_41296cztM0_level2_quad_clean.evt
|
Size (bytes) | 502,384,320 | 82,370,880 |
Size | 479.1 MB
| 78.6 MB
|
Events in quadrant A | 7,506,741 | 399,433 |
Events in quadrant B | 2,508,266 | 632,556 |
Events in quadrant C | 3,093,543 | 565,922 |
Events in quadrant D | 5,054,479 | 506,499 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 25877 | 3 |
B | 0 | 11335 | 2 |
C | 0 | 12835 | 2 |
D | 0 | 18848 | 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 | 31 | 0 |
B | 0 | 31 | 0 |
C | 0 | 31 | 0 |
D | 0 | 32 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5574 | 1995 | 35.791173% |
B | 5574 | 8 | 0.143524% |
C | 5574 | 221 | 3.964837% |
D | 5574 | 508 | 9.113742% |
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 | 7248 | 5575 | 1985 | 1985 | 27.39% | 35.61% |  |
B | 7248 | 5575 | 1 | 1 | 0.01% | 0.02% |  |
C | 7248 | 5575 | 216 | 216 | 2.98% | 3.87% |  |
D | 7248 | 5575 | 531 | 531 | 7.33% | 9.52% |  |
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 | 5185618 | 53700.43 | 472 | 463 | 96.6 |
A | 10 | 83 | 445200 | 4605.95 | 472 | 463 | 96.6 |
A | 12 | 189 | 42740 | 437.84 | 472 | 463 | 96.6 |
B | 7 | 202 | 56108 | 476.14 | 599 | 582 | 116.6 |
B | 0 | 229 | 45986 | 389.35 | 599 | 582 | 116.6 |
B | 0 | 245 | 24671 | 206.57 | 599 | 582 | 116.6 |
C | 0 | 10 | 611685 | 4566.96 | 574 | 578 | 133.8 |
C | 15 | 214 | 234962 | 1751.61 | 574 | 578 | 133.8 |
C | 3 | 233 | 7705 | 53.26 | 574 | 578 | 133.8 |
D | 2 | 249 | 736217 | 5347.82 | 561 | 545 | 137.6 |
D | 5 | 222 | 708761 | 5148.23 | 561 | 545 | 137.6 |
D | 13 | 249 | 522492 | 3794.19 | 561 | 545 | 137.6 |
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 |  |