Observation information
- date-obs: 2018-08-18
- time-obs: 09:15:04.763200000
- date-end: 2018-08-20
- time-end: 20:28:24.008000000
- obs_id: T02_086T01_9000002316
- exposure: 125481.898102
- sourceid: 4U 1636-536
- observer: sudip
- ra_pnt: 250.2312
- dec_pnt: -53.75139
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1T02_086T01_9000002316cztM0_level2_bc.evt
| modeM0/AS1T02_086T01_9000002316cztM0_level2_quad_clean.evt
|
Size (bytes) | 6,684,108,480 | 2,556,872,640 |
Size | 6.2 GB
| 2.4 GB
|
Events in quadrant A | 39,784,869 | 16,385,718 |
Events in quadrant B | 41,981,554 | 16,558,542 |
Events in quadrant C | 41,518,692 | 16,202,030 |
Events in quadrant D | 66,490,804 | 15,571,477 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 277 | 0 |
B | 0 | 277 | 0 |
C | 0 | 277 | 0 |
D | 0 | 277 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 388381 | 0 |
B | 0 | 392716 | 0 |
C | 0 | 397525 | 0 |
D | 0 | 475876 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 3778 | 0 |
B | 0 | 3778 | 0 |
C | 0 | 3778 | 0 |
D | 0 | 3778 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 185866 | 2427 | 1.305779% |
B | 185866 | 2654 | 1.427910% |
C | 185866 | 3241 | 1.743729% |
D | 185866 | 8719 | 4.691014% |
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 | 213202 | 185842 | 28 | 28 | 0.01% | 0.02% |  |
B | 213202 | 185845 | 33 | 33 | 0.02% | 0.02% |  |
C | 213202 | 185847 | 10 | 10 | 0.00% | 0.01% |  |
D | 213201 | 185846 | 2749 | 2749 | 1.29% | 1.48% |  |
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 | 15 | 249 | 726328 | 339.68 | 9725 | 9562 | 2110.1 |
A | 15 | 157 | 634743 | 296.28 | 9725 | 9562 | 2110.1 |
A | 13 | 248 | 296018 | 135.75 | 9725 | 9562 | 2110.1 |
B | 0 | 189 | 751413 | 407.6 | 9802 | 9569 | 1820.0 |
B | 3 | 209 | 565338 | 305.36 | 9802 | 9569 | 1820.0 |
B | 5 | 65 | 459002 | 246.94 | 9802 | 9569 | 1820.0 |
C | 3 | 233 | 4612341 | 2094.36 | 9452 | 9415 | 2197.8 |
C | 7 | 247 | 165133 | 70.85 | 9452 | 9415 | 2197.8 |
C | 14 | 225 | 118895 | 49.81 | 9452 | 9415 | 2197.8 |
D | 1 | 52 | 24798524 | 11311.4 | 9521 | 9194 | 2191.5 |
D | 12 | 110 | 1393295 | 631.57 | 9521 | 9194 | 2191.5 |
D | 15 | 0 | 766238 | 345.44 | 9521 | 9194 | 2191.5 |
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 |  |