Observation information
- date-obs: 2018-04-11
- time-obs: 23:57:06.669300000
- date-end: 2018-04-12
- time-end: 08:27:34.641900000
- obs_id: G08_036T01_9000002034
- exposure: 13216.4515699
- 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_9000002034cztM0_level2.evt
| modeM0/AS1G08_036T01_9000002034cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,800,705,600 | 316,990,080 |
Size | 1.7 GB
| 302.3 MB
|
Events in quadrant A | 12,030,808 | 2,017,456 |
Events in quadrant B | 13,763,033 | 2,097,516 |
Events in quadrant C | 12,301,266 | 1,962,446 |
Events in quadrant D | 14,798,862 | 1,850,897 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 494 | 0 |
B | 0 | 494 | 0 |
C | 0 | 494 | 0 |
D | 0 | 494 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 50562 | 0 |
B | 0 | 56134 | 0 |
C | 0 | 51060 | 0 |
D | 0 | 58990 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 64 | 0 |
B | 0 | 64 | 0 |
C | 0 | 64 | 0 |
D | 0 | 64 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 24324 | 136 | 0.559119% |
B | 24324 | 265 | 1.089459% |
C | 24324 | 104 | 0.427561% |
D | 24324 | 435 | 1.788357% |
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 | 30630 | 24330 | 0 | 0 | 0.00% | 0.00% |  |
B | 30630 | 24330 | 18 | 18 | 0.06% | 0.07% |  |
C | 30630 | 24330 | 2 | 2 | 0.01% | 0.01% |  |
D | 30630 | 24330 | 271 | 271 | 0.88% | 1.11% |  |
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 | 1 | 162 | 28778 | 41.33 | 3119 | 3058 | 622.3 |
A | 0 | 226 | 27718 | 39.63 | 3119 | 3058 | 622.3 |
A | 12 | 194 | 23882 | 33.47 | 3119 | 3058 | 622.3 |
B | 10 | 244 | 836349 | 1449.16 | 3122 | 3054 | 575.0 |
B | 8 | 250 | 274683 | 472.38 | 3122 | 3054 | 575.0 |
B | 0 | 219 | 158892 | 271.01 | 3122 | 3054 | 575.0 |
C | 3 | 233 | 411831 | 589.64 | 3040 | 3061 | 693.3 |
C | 4 | 254 | 30272 | 39.25 | 3040 | 3061 | 693.3 |
C | 13 | 61 | 21806 | 27.04 | 3040 | 3061 | 693.3 |
D | 5 | 222 | 2183506 | 2781.11 | 2989 | 2937 | 784.1 |
D | 8 | 195 | 680791 | 864.54 | 2989 | 2937 | 784.1 |
D | 10 | 157 | 243057 | 306.25 | 2989 | 2937 | 784.1 |
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 |  |