Observation information
- date-obs: 2019-08-20
- time-obs: 06:06:27.721900000
- date-end: 2019-08-20
- time-end: 19:08:59.680700000
- obs_id: A05_025T04_9000003110
- exposure: 26495.0672994
- sourceid: NGC 1851
- observer: pandey
- ra_pnt: 78.52817
- dec_pnt: -40.04655
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A05_025T04_9000003110cztM0_level2_bc.evt
| modeM0/AS1A05_025T04_9000003110cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,468,687,680 | 537,701,760 |
Size | 1.4 GB
| 512.8 MB
|
Events in quadrant A | 8,335,226 | 3,412,654 |
Events in quadrant B | 9,941,217 | 3,468,239 |
Events in quadrant C | 8,002,030 | 3,320,144 |
Events in quadrant D | 15,335,495 | 3,202,785 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 52 | 0 |
B | 0 | 52 | 0 |
C | 0 | 52 | 0 |
D | 0 | 52 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 852 | 0 |
B | 0 | 852 | 0 |
C | 0 | 852 | 0 |
D | 0 | 852 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 86167 | 0 |
B | 0 | 91465 | 0 |
C | 0 | 85987 | 0 |
D | 0 | 107457 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 41991 | 591 | 1.407444% |
B | 41991 | 849 | 2.021862% |
C | 41991 | 756 | 1.800386% |
D | 41991 | 1856 | 4.419995% |
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 | 46451 | 41991 | 4 | 4 | 0.01% | 0.01% |  |
B | 46450 | 41991 | 13 | 13 | 0.03% | 0.03% |  |
C | 46451 | 41993 | 0 | 0 | 0.00% | 0.00% |  |
D | 46451 | 41992 | 546 | 546 | 1.18% | 1.30% |  |
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 | 254 | 55614 | 115.49 | 2137 | 2098 | 463.4 |
A | 13 | 252 | 50350 | 104.13 | 2137 | 2098 | 463.4 |
A | 12 | 96 | 24428 | 48.19 | 2137 | 2098 | 463.4 |
B | 7 | 220 | 414566 | 1006.79 | 2156 | 2102 | 409.7 |
B | 0 | 219 | 270949 | 656.23 | 2156 | 2102 | 409.7 |
B | 7 | 205 | 220014 | 531.9 | 2156 | 2102 | 409.7 |
C | 3 | 9 | 29883 | 56.55 | 2072 | 2055 | 492.1 |
C | 13 | 61 | 12097 | 20.41 | 2072 | 2055 | 492.1 |
C | 14 | 238 | 6958 | 9.96 | 2072 | 2055 | 492.1 |
D | 1 | 52 | 4719904 | 9722.28 | 2083 | 2006 | 485.3 |
D | 7 | 238 | 1575103 | 3241.72 | 2083 | 2006 | 485.3 |
D | 13 | 172 | 282768 | 578.57 | 2083 | 2006 | 485.3 |
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 |  |