Observation information
- date-obs: 2020-02-07
- time-obs: 13:49:32.166900000
- date-end: 2020-02-07
- time-end: 14:55:02.116400000
- obs_id: A07_024T04_9000003484
- exposure: 1614.97729303
- sourceid: NGC 4651
- observer: sreeja
- ra_pnt: 190.9276
- dec_pnt: 16.39339
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A07_024T04_9000003484_23585cztM0_level2.evt
| modeM0/AS1A07_024T04_9000003484_23585cztM0_level2_quad_clean.evt
|
Size (bytes) | 296,326,080 | 35,349,120 |
Size | 282.6 MB
| 33.7 MB
|
Events in quadrant A | 2,161,992 | 205,943 |
Events in quadrant B | 2,191,059 | 209,136 |
Events in quadrant C | 1,846,541 | 203,082 |
Events in quadrant D | 2,533,857 | 201,615 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 8618 | 1 |
B | 0 | 8681 | 6 |
C | 0 | 7550 | 1 |
D | 0 | 9922 | 3 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 4 | 0 |
B | 0 | 4 | 0 |
C | 0 | 4 | 0 |
D | 0 | 4 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 74 | 0 |
B | 0 | 74 | 0 |
C | 0 | 74 | 0 |
D | 0 | 74 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 3526 | 57 | 1.616563% |
B | 3524 | 155 | 4.398411% |
C | 3526 | 78 | 2.212138% |
D | 3524 | 116 | 3.291714% |
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 | 3931 | 3526 | 7 | 7 | 0.18% | 0.20% |  |
B | 3931 | 3525 | 56 | 56 | 1.42% | 1.59% |  |
C | 3931 | 3526 | 0 | 0 | 0.00% | 0.00% |  |
D | 3930 | 3525 | 43 | 43 | 1.09% | 1.22% |  |
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 | 174 | 376947 | 4034.36 | 452 | 441 | 93.3 |
A | 6 | 16 | 40703 | 431.42 | 452 | 441 | 93.3 |
A | 13 | 254 | 5724 | 56.61 | 452 | 441 | 93.3 |
B | 3 | 64 | 395333 | 4500.98 | 443 | 432 | 87.7 |
B | 0 | 189 | 30184 | 339.11 | 443 | 432 | 87.7 |
B | 12 | 111 | 10557 | 115.4 | 443 | 432 | 87.7 |
C | 10 | 9 | 82036 | 800.35 | 429 | 432 | 102.0 |
C | 14 | 238 | 66179 | 644.83 | 429 | 432 | 102.0 |
C | 7 | 247 | 19071 | 182.81 | 429 | 432 | 102.0 |
D | 1 | 52 | 500756 | 4623.62 | 436 | 423 | 108.2 |
D | 7 | 38 | 104855 | 965.06 | 436 | 423 | 108.2 |
D | 7 | 223 | 101319 | 932.39 | 436 | 423 | 108.2 |
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 |  |