Observation information
- date-obs: 2019-01-14
- time-obs: 19:22:41.425700000
- date-end: 2019-01-15
- time-end: 04:18:11.537100000
- obs_id: A05_025T04_9000002652
- exposure: 14474.3829834
- 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_9000002652cztM0_level2.evt
| modeM0/AS1A05_025T04_9000002652cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,855,941,120 | 328,510,080 |
Size | 1.7 GB
| 313.3 MB
|
Events in quadrant A | 13,005,373 | 2,059,996 |
Events in quadrant B | 13,366,185 | 2,117,055 |
Events in quadrant C | 13,166,767 | 2,032,695 |
Events in quadrant D | 14,916,508 | 1,954,929 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 532 | 0 |
B | 0 | 532 | 0 |
C | 0 | 532 | 0 |
D | 0 | 532 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 55440 | 0 |
B | 0 | 55824 | 0 |
C | 0 | 54509 | 0 |
D | 0 | 61908 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 61 | 0 |
B | 0 | 61 | 0 |
C | 0 | 61 | 0 |
D | 0 | 61 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 25946 | 297 | 1.144685% |
B | 25946 | 303 | 1.167810% |
C | 25946 | 266 | 1.025206% |
D | 25946 | 517 | 1.992600% |
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 | 32131 | 25952 | 173 | 173 | 0.54% | 0.67% |  |
B | 32131 | 25952 | 76 | 76 | 0.24% | 0.29% |  |
C | 32131 | 25952 | 0 | 0 | 0.00% | 0.00% |  |
D | 32131 | 25952 | 375 | 375 | 1.17% | 1.44% |  |
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 | 699907 | 1093.74 | 3204 | 3144 | 637.0 |
A | 0 | 226 | 27679 | 38.51 | 3204 | 3144 | 637.0 |
A | 3 | 137 | 23986 | 32.72 | 3204 | 3144 | 637.0 |
B | 10 | 245 | 451569 | 745.83 | 3237 | 3161 | 601.2 |
B | 15 | 222 | 109575 | 177.0 | 3237 | 3161 | 601.2 |
B | 12 | 111 | 72319 | 115.03 | 3237 | 3161 | 601.2 |
C | 14 | 238 | 489457 | 675.94 | 3123 | 3151 | 719.4 |
C | 13 | 62 | 395211 | 544.95 | 3123 | 3151 | 719.4 |
C | 5 | 218 | 98654 | 132.74 | 3123 | 3151 | 719.4 |
D | 7 | 238 | 2581291 | 3154.73 | 3086 | 3031 | 817.3 |
D | 10 | 70 | 220082 | 265.58 | 3086 | 3031 | 817.3 |
D | 12 | 110 | 136729 | 163.59 | 3086 | 3031 | 817.3 |
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 |  |