Observation information
- date-obs: 2024-09-23
- time-obs: 19:23:59.467100000
- date-end: 2024-09-23
- time-end: 21:38:24.461000000
- obs_id: A13_037T01_9000006436
- exposure: 6050.34840059
- sourceid: Cygnus X-2
- observer: ranjeev
- ra_pnt: 326.1714
- dec_pnt: 38.32141
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A13_037T01_9000006436_48619cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006436_48619cztM0_level2_quad_clean.evt
|
Size (bytes) | 431,259,840 | 105,857,280 |
Size | 411.3 MB
| 101.0 MB
|
Events in quadrant A | 6,953,281 | 672,362 |
Events in quadrant B | 2,896,745 | 737,376 |
Events in quadrant C | 2,741,467 | 710,214 |
Events in quadrant D | 2,870,989 | 635,382 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 24937 | 2 |
B | 0 | 13354 | 2 |
C | 0 | 13113 | 2 |
D | 0 | 13483 | 2 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 16 | 0 |
B | 0 | 17 | 0 |
C | 0 | 17 | 0 |
D | 0 | 17 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 130 | 0 |
B | 0 | 130 | 0 |
C | 0 | 130 | 0 |
D | 0 | 130 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6452 | 397 | 6.153131% |
B | 6452 | 45 | 0.697458% |
C | 6452 | 21 | 0.325480% |
D | 6452 | 32 | 0.495970% |
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 | 7602 | 6453 | 194 | 194 | 2.55% | 3.01% | |
B | 7602 | 6453 | 1 | 1 | 0.01% | 0.02% | |
C | 7602 | 6453 | 0 | 0 | 0.00% | 0.00% | |
D | 7602 | 6453 | 7 | 7 | 0.09% | 0.11% | |
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 | 4066703 | 28141.7 | 689 | 675 | 144.5 |
A | 13 | 248 | 199316 | 1374.83 | 689 | 675 | 144.5 |
A | 12 | 189 | 18972 | 126.64 | 689 | 675 | 144.5 |
B | 12 | 16 | 39590 | 283.17 | 707 | 687 | 137.4 |
B | 5 | 171 | 22410 | 158.12 | 707 | 687 | 137.4 |
B | 12 | 111 | 17642 | 123.41 | 707 | 687 | 137.4 |
C | 14 | 254 | 4825 | 24.89 | 702 | 705 | 165.5 |
C | 13 | 61 | 4540 | 23.17 | 702 | 705 | 165.5 |
C | 12 | 249 | 2599 | 11.44 | 702 | 705 | 165.5 |
D | 2 | 249 | 70107 | 398.21 | 693 | 669 | 174.4 |
D | 2 | 165 | 49596 | 280.59 | 693 | 669 | 174.4 |
D | 2 | 234 | 31178 | 174.96 | 693 | 669 | 174.4 |
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 |
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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 | |