Observation information
- date-obs: 2018-08-09
- time-obs: 14:16:09.410200000
- date-end: 2018-08-09
- time-end: 20:31:00.410400000
- obs_id: G08_036T01_9000002290
- exposure: 12820.9147718
- sourceid: 4U 1820-30
- observer: jsyadav
- ra_pnt: 275.919
- dec_pnt: -30.36128
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1G08_036T01_9000002290cztM0_level2_bc.evt
| modeM0/AS1G08_036T01_9000002290cztM0_level2_quad_clean.evt
|
Size (bytes) | 720,348,480 | 260,441,280 |
Size | 687.0 MB
| 248.4 MB
|
Events in quadrant A | 4,292,687 | 1,659,471 |
Events in quadrant B | 4,918,028 | 1,674,354 |
Events in quadrant C | 4,310,247 | 1,616,634 |
Events in quadrant D | 6,931,963 | 1,566,750 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 26 | 0 |
B | 0 | 26 | 0 |
C | 0 | 26 | 0 |
D | 0 | 26 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 42247 | 0 |
B | 0 | 44175 | 0 |
C | 0 | 42265 | 0 |
D | 0 | 51516 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 404 | 0 |
B | 0 | 404 | 0 |
C | 0 | 404 | 0 |
D | 0 | 404 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 19907 | 320 | 1.607475% |
B | 19907 | 374 | 1.878736% |
C | 19907 | 324 | 1.627568% |
D | 19907 | 772 | 3.878033% |
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 | 22493 | 19909 | 6 | 6 | 0.03% | 0.03% |  |
B | 22493 | 19910 | 17 | 17 | 0.08% | 0.09% |  |
C | 22493 | 19909 | 0 | 0 | 0.00% | 0.00% |  |
D | 22493 | 19909 | 99 | 99 | 0.44% | 0.50% |  |
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 | 69 | 84912 | 366.08 | 1038 | 1016 | 229.2 |
A | 0 | 253 | 80096 | 345.06 | 1038 | 1016 | 229.2 |
A | 9 | 143 | 60361 | 258.95 | 1038 | 1016 | 229.2 |
B | 10 | 245 | 254957 | 1262.6 | 1043 | 1016 | 201.1 |
B | 4 | 142 | 216711 | 1072.44 | 1043 | 1016 | 201.1 |
B | 0 | 189 | 87372 | 429.36 | 1043 | 1016 | 201.1 |
C | 3 | 233 | 382093 | 1628.3 | 994 | 987 | 234.1 |
C | 9 | 54 | 80374 | 339.18 | 994 | 987 | 234.1 |
C | 0 | 207 | 12400 | 48.76 | 994 | 987 | 234.1 |
D | 1 | 52 | 1847059 | 7825.11 | 1004 | 965 | 235.9 |
D | 5 | 222 | 609766 | 2580.55 | 1004 | 965 | 235.9 |
D | 10 | 70 | 130390 | 548.6 | 1004 | 965 | 235.9 |
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 |  |