Observation information
- date-obs: 2022-02-21
- time-obs: 08:01:00.498000000
- date-end: 2022-02-21
- time-end: 09:00:05.525000000
- obs_id: A11_046T09_9000004952
- exposure: 635.734326273
- sourceid: NGC4656
- observer: samyaday
- ra_pnt: 190.9897
- dec_pnt: 32.17036
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A11_046T09_9000004952_34610cztM0_level2.evt
| modeM0/AS1A11_046T09_9000004952_34610cztM0_level2_quad_clean.evt
|
Size (bytes) | 148,193,280 | 16,401,600 |
Size | 141.3 MB
| 15.6 MB
|
Events in quadrant A | 826,117 | 100,255 |
Events in quadrant B | 1,167,171 | 98,914 |
Events in quadrant C | 885,212 | 97,321 |
Events in quadrant D | 1,507,018 | 89,950 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 30 | 0 |
B | 0 | 30 | 0 |
C | 0 | 30 | 0 |
D | 0 | 30 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 21 | 0 |
B | 0 | 21 | 0 |
C | 0 | 21 | 0 |
D | 0 | 21 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 3303 | 2 |
B | 0 | 4400 | 1 |
C | 0 | 3484 | 1 |
D | 0 | 5532 | 1 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 1482 | 8 | 0.539811% |
B | 1482 | 123 | 8.299595% |
C | 1482 | 19 | 1.282051% |
D | 1482 | 74 | 4.993252% |
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 | 3545 | 1483 | 2 | 2 | 0.06% | 0.13% | |
B | 3545 | 1482 | 81 | 81 | 2.28% | 5.47% | |
C | 3545 | 1483 | 10 | 10 | 0.28% | 0.67% | |
D | 3545 | 1483 | 72 | 72 | 2.03% | 4.86% | |
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 | 10 | 83 | 18924 | 445.84 | 204 | 201 | 42.0 |
A | 9 | 143 | 13036 | 305.63 | 204 | 201 | 42.0 |
A | 15 | 169 | 3542 | 79.56 | 204 | 201 | 42.0 |
B | 5 | 172 | 345846 | 8970.88 | 195 | 191 | 38.5 |
B | 4 | 232 | 36708 | 947.74 | 195 | 191 | 38.5 |
B | 10 | 245 | 4941 | 123.28 | 195 | 191 | 38.5 |
C | 15 | 214 | 64871 | 1418.85 | 193 | 195 | 45.6 |
C | 0 | 10 | 49638 | 1084.67 | 193 | 195 | 45.6 |
C | 14 | 67 | 10598 | 228.22 | 193 | 195 | 45.6 |
D | 8 | 195 | 534648 | 11077.47 | 192 | 187 | 48.2 |
D | 10 | 118 | 113506 | 2348.7 | 192 | 187 | 48.2 |
D | 7 | 38 | 35977 | 741.8 | 192 | 187 | 48.2 |
Detector plane histogram (DPH)
Histogram calculated using DETX and DETY for each event in the final _common_clean file
Quadrant A |
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|
Quadrant B |
Quadrant D |
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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 | |