Observation information
- date-obs: 2021-08-24
- time-obs: 03:57:27.988600000
- date-end: 2021-08-24
- time-end: 14:39:49.001300000
- obs_id: A10_059T01_9000004656
- exposure: 22302.9629072
- sourceid: 4U 1735-44
- observer: jitheshthejus
- ra_pnt: 264.7429
- dec_pnt: -44.45
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A10_059T01_9000004656cztM0_level2_bc.evt
| modeM0/AS1A10_059T01_9000004656cztM0_level2_quad_clean.evt
|
Size (bytes) | 2,191,501,440 | 496,926,720 |
Size | 2.0 GB
| 473.9 MB
|
Events in quadrant A | 8,274,966 | 3,410,998 |
Events in quadrant B | 17,921,458 | 3,343,876 |
Events in quadrant C | 14,860,817 | 3,230,289 |
Events in quadrant D | 23,200,856 | 2,926,510 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 70331 | 0 |
B | 0 | 103331 | 0 |
C | 0 | 101926 | 0 |
D | 0 | 127474 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 71 | 0 |
B | 0 | 71 | 0 |
C | 0 | 71 | 0 |
D | 0 | 71 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 634 | 0 |
B | 0 | 634 | 0 |
C | 0 | 634 | 0 |
D | 0 | 634 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 31119 | 532 | 1.709567% |
B | 31119 | 1437 | 4.617758% |
C | 31119 | 2296 | 7.378129% |
D | 31119 | 4494 | 14.441338% |
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 | 38363 | 31115 | 4 | 4 | 0.01% | 0.01% |  |
B | 38364 | 31118 | 50 | 50 | 0.13% | 0.16% |  |
C | 38365 | 31118 | 42 | 42 | 0.11% | 0.13% |  |
D | 38365 | 31119 | 284 | 284 | 0.74% | 0.91% |  |
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 | 12 | 96 | 765654 | 1863.17 | 1933 | 1911 | 409.9 |
A | 13 | 254 | 57689 | 136.07 | 1933 | 1911 | 409.9 |
A | 13 | 6 | 40074 | 93.1 | 1933 | 1911 | 409.9 |
B | 6 | 159 | 7946954 | 22452.87 | 1910 | 1879 | 353.9 |
B | 4 | 80 | 1928928 | 5445.86 | 1910 | 1879 | 353.9 |
B | 5 | 172 | 383919 | 1079.65 | 1910 | 1879 | 353.9 |
C | 3 | 233 | 6300221 | 14950.04 | 1806 | 1812 | 421.3 |
C | 0 | 10 | 1364628 | 3234.81 | 1806 | 1812 | 421.3 |
C | 15 | 208 | 100413 | 234.04 | 1806 | 1812 | 421.3 |
D | 12 | 33 | 8181395 | 20703.12 | 1781 | 1734 | 395.1 |
D | 8 | 195 | 5055158 | 12790.46 | 1781 | 1734 | 395.1 |
D | 13 | 249 | 1591815 | 4024.57 | 1781 | 1734 | 395.1 |
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 |  |