Observation information
- date-obs: 2018-11-20
- time-obs: 02:44:20.584800000
- date-end: 2018-11-20
- time-end: 08:42:46.530100000
- obs_id: A05_225T02_9000002526
- exposure: 17601.1499969
- sourceid: NGC 1961
- observer: joydeep
- ra_pnt: 85.12708
- dec_pnt: 69.37844
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A05_225T02_9000002526cztM0_level2_bc.evt
| modeM0/AS1A05_225T02_9000002526cztM0_level2_quad_clean.evt
|
Size (bytes) | 717,802,560 | 350,861,760 |
Size | 684.5 MB
| 334.6 MB
|
Events in quadrant A | 3,940,949 | 2,416,397 |
Events in quadrant B | 4,471,797 | 2,442,719 |
Events in quadrant C | 5,028,952 | 2,318,359 |
Events in quadrant D | 7,081,865 | 2,226,778 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 36813 | 0 |
B | 0 | 38854 | 0 |
C | 0 | 41448 | 0 |
D | 0 | 47292 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 360 | 0 |
B | 0 | 360 | 0 |
C | 0 | 360 | 0 |
D | 0 | 360 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 38 | 0 |
B | 0 | 38 | 0 |
C | 0 | 38 | 0 |
D | 0 | 38 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 17762 | 117 | 0.658710% |
B | 17762 | 228 | 1.283639% |
C | 17762 | 240 | 1.351199% |
D | 17761 | 754 | 4.245256% |
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 | 21508 | 17762 | 1 | 1 | 0.00% | 0.01% |  |
B | 21508 | 17763 | 2 | 2 | 0.01% | 0.01% |  |
C | 21508 | 17763 | 0 | 0 | 0.00% | 0.00% |  |
D | 21508 | 17763 | 169 | 169 | 0.79% | 0.95% |  |
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 | 0 | 23 | 106458 | 501.31 | 970 | 955 | 210.5 |
A | 15 | 174 | 93336 | 438.96 | 970 | 955 | 210.5 |
A | 0 | 226 | 13218 | 58.27 | 970 | 955 | 210.5 |
B | 6 | 36 | 111822 | 607.94 | 977 | 957 | 182.4 |
B | 0 | 189 | 86633 | 469.81 | 977 | 957 | 182.4 |
B | 0 | 229 | 83366 | 451.9 | 977 | 957 | 182.4 |
C | 3 | 233 | 1301518 | 5946.22 | 927 | 923 | 218.7 |
C | 9 | 54 | 128035 | 581.15 | 927 | 923 | 218.7 |
C | 5 | 112 | 15898 | 68.46 | 927 | 923 | 218.7 |
D | 1 | 52 | 3256955 | 15137.52 | 929 | 899 | 215.1 |
D | 4 | 239 | 80058 | 368.01 | 929 | 899 | 215.1 |
D | 2 | 234 | 74915 | 344.1 | 929 | 899 | 215.1 |
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 |  |