Observation information
- date-obs: 2017-09-09
- time-obs: 16:31:34.936700000
- date-end: 2017-09-10
- time-end: 07:46:47.899500000
- obs_id: A03_107T01_9000001530
- exposure: 24962.6243466
- sourceid: 4U 1820-30
- observer: graman
- ra_pnt: 275.9188
- dec_pnt: -30.36128
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A03_107T01_9000001530cztM0_level2.evt
| modeM0/AS1A03_107T01_9000001530cztM0_level2_quad_clean.evt
|
Size (bytes) | 3,242,208,960 | 523,183,680 |
Size | 3.0 GB
| 498.9 MB
|
Events in quadrant A | 21,206,600 | 3,300,373 |
Events in quadrant B | 27,552,023 | 3,169,058 |
Events in quadrant C | 20,242,291 | 3,300,556 |
Events in quadrant D | 26,229,947 | 3,064,833 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 92534 | 0 |
B | 0 | 110037 | 0 |
C | 0 | 91028 | 0 |
D | 0 | 106005 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 918 | 0 |
B | 0 | 312 | 0 |
C | 0 | 925 | 0 |
D | 0 | 919 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 91 | 0 |
B | 0 | 91 | 0 |
C | 0 | 91 | 0 |
D | 0 | 91 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 44437 | 516 | 1.161195% |
B | 43300 | 2137 | 4.935335% |
C | 44472 | 375 | 0.843227% |
D | 45035 | 831 | 1.845231% |
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 | 54107 | 45632 | 49 | 49 | 0.09% | 0.11% |  |
B | 54107 | 44513 | 1196 | 1196 | 2.21% | 2.69% |  |
C | 54107 | 45616 | 2 | 2 | 0.00% | 0.00% |  |
D | 54107 | 45475 | 389 | 389 | 0.72% | 0.86% |  |
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 | 13 | 251 | 303471 | 280.04 | 5296 | 5198 | 1065.1 |
A | 1 | 162 | 174965 | 159.39 | 5296 | 5198 | 1065.1 |
A | 15 | 174 | 151143 | 137.02 | 5296 | 5198 | 1065.1 |
B | 4 | 239 | 6588297 | 6804.88 | 5135 | 5015 | 967.4 |
B | 11 | 51 | 284109 | 288.49 | 5135 | 5015 | 967.4 |
B | 0 | 214 | 222414 | 224.72 | 5135 | 5015 | 967.4 |
C | 4 | 175 | 50853 | 38.29 | 5162 | 5198 | 1192.3 |
C | 14 | 234 | 42524 | 31.3 | 5162 | 5198 | 1192.3 |
C | 13 | 61 | 38610 | 28.02 | 5162 | 5198 | 1192.3 |
D | 8 | 195 | 2596465 | 2103.43 | 5122 | 4979 | 1232.0 |
D | 1 | 52 | 2134548 | 1728.51 | 5122 | 4979 | 1232.0 |
D | 2 | 16 | 1261349 | 1019.76 | 5122 | 4979 | 1232.0 |
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 |  |