Observation information
- date-obs: 2024-09-17
- time-obs: 18:09:23.892200000
- date-end: 2024-09-17
- time-end: 20:18:14.886100000
- obs_id: A13_037T01_9000006436
- exposure: 6102.97561049
- 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_48709cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006436_48709cztM0_level2_quad_clean.evt
|
Size (bytes) | 430,833,600 | 106,675,200 |
Size | 410.9 MB
| 101.7 MB
|
Events in quadrant A | 6,861,395 | 683,945 |
Events in quadrant B | 2,927,781 | 738,282 |
Events in quadrant C | 2,827,292 | 713,313 |
Events in quadrant D | 2,829,153 | 643,777 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 24615 | 2 |
B | 0 | 13435 | 2 |
C | 0 | 13290 | 2 |
D | 0 | 13495 | 2 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 13 | 0 |
B | 0 | 13 | 0 |
C | 0 | 14 | 0 |
D | 0 | 14 | 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 | 6467 | 348 | 5.381166% |
B | 6467 | 74 | 1.144271% |
C | 6467 | 23 | 0.355652% |
D | 6467 | 31 | 0.479357% |
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 | 6468 | 172 | 172 | 2.26% | 2.66% | |
B | 7602 | 6468 | 3 | 3 | 0.04% | 0.05% | |
C | 7602 | 6468 | 0 | 0 | 0.00% | 0.00% | |
D | 7602 | 6468 | 22 | 22 | 0.29% | 0.34% | |
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 | 4015268 | 27472.59 | 701 | 686 | 146.1 |
A | 13 | 248 | 131324 | 893.98 | 701 | 686 | 146.1 |
A | 13 | 254 | 12548 | 81.17 | 701 | 686 | 146.1 |
B | 12 | 16 | 43892 | 307.39 | 716 | 694 | 140.5 |
B | 10 | 7 | 24476 | 169.23 | 716 | 694 | 140.5 |
B | 12 | 111 | 18129 | 124.06 | 716 | 694 | 140.5 |
C | 3 | 233 | 28455 | 165.36 | 711 | 715 | 167.8 |
C | 14 | 254 | 10834 | 60.32 | 711 | 715 | 167.8 |
C | 12 | 2 | 10752 | 59.83 | 711 | 715 | 167.8 |
D | 7 | 55 | 42049 | 238.55 | 698 | 677 | 173.4 |
D | 5 | 32 | 38449 | 217.79 | 698 | 677 | 173.4 |
D | 2 | 233 | 31621 | 178.42 | 698 | 677 | 173.4 |
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 | |