Observation information
- date-obs: 2023-05-19
- time-obs: 03:34:45.123700000
- date-end: 2023-05-19
- time-end: 05:28:34.124400000
- obs_id: T05_106T01_9000005642
- exposure: 3733.05637443
- 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_41301cztM0_level2.fits
| modeM0/AS1T05_106T01_9000005642_41301cztM0_level2_quad_clean.evt
|
Size (bytes) | 362,761,920 | 81,325,440 |
Size | 346.0 MB
| 77.6 MB
|
Events in quadrant A | 2,573,920 | 567,659 |
Events in quadrant B | 2,334,241 | 596,353 |
Events in quadrant C | 2,653,552 | 552,707 |
Events in quadrant D | 5,499,604 | 414,955 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 10327 | 2 |
B | 0 | 10022 | 1 |
C | 0 | 10489 | 1 |
D | 0 | 19489 | 1 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 98 | 0 |
B | 0 | 98 | 0 |
C | 0 | 98 | 0 |
D | 0 | 98 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 21 | 0 |
B | 0 | 21 | 0 |
C | 0 | 21 | 0 |
D | 0 | 21 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 4706 | 7 | 0.148746% |
B | 4706 | 16 | 0.339992% |
C | 4706 | 142 | 3.017425% |
D | 4706 | 1102 | 23.416915% |
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 | 6829 | 4707 | 3 | 3 | 0.04% | 0.06% |  |
B | 6829 | 4707 | 3 | 3 | 0.04% | 0.06% |  |
C | 6829 | 4707 | 128 | 128 | 1.87% | 2.72% |  |
D | 6829 | 4707 | 1042 | 1042 | 15.26% | 22.14% |  |
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 | 416120 | 3779.07 | 541 | 531 | 110.0 |
A | 12 | 189 | 53891 | 485.22 | 541 | 531 | 110.0 |
A | 6 | 10 | 10238 | 88.27 | 541 | 531 | 110.0 |
B | 0 | 186 | 90540 | 879.63 | 541 | 527 | 102.3 |
B | 0 | 245 | 63895 | 619.25 | 541 | 527 | 102.3 |
B | 0 | 229 | 30237 | 290.33 | 541 | 527 | 102.3 |
C | 0 | 10 | 398191 | 3269.07 | 527 | 532 | 121.6 |
C | 15 | 214 | 196830 | 1613.72 | 527 | 532 | 121.6 |
C | 13 | 61 | 3558 | 24.88 | 527 | 532 | 121.6 |
D | 1 | 47 | 2515182 | 21538.56 | 477 | 463 | 116.8 |
D | 2 | 249 | 539147 | 4613.83 | 477 | 463 | 116.8 |
D | 1 | 52 | 212136 | 1812.98 | 477 | 463 | 116.8 |
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 |  |