Observation information
- date-obs: 2024-09-22
- time-obs: 03:20:39.586600000
- date-end: 2024-09-22
- time-end: 05:38:38.579400000
- obs_id: A13_037T01_9000006436
- exposure: 6457.52983928
- 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_48594cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006436_48594cztM0_level2_quad_clean.evt
|
Size (bytes) | 450,218,880 | 107,205,120 |
Size | 429.4 MB
| 102.2 MB
|
Events in quadrant A | 6,887,140 | 686,497 |
Events in quadrant B | 3,348,239 | 733,632 |
Events in quadrant C | 2,876,830 | 710,682 |
Events in quadrant D | 3,024,250 | 640,450 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 25280 | 2 |
B | 0 | 14702 | 2 |
C | 0 | 13973 | 2 |
D | 0 | 14461 | 2 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 14 | 0 |
B | 0 | 15 | 0 |
C | 0 | 15 | 0 |
D | 0 | 15 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 138 | 0 |
B | 0 | 138 | 0 |
C | 0 | 138 | 0 |
D | 0 | 138 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6813 | 283 | 4.153824% |
B | 6813 | 136 | 1.996184% |
C | 6813 | 33 | 0.484368% |
D | 6813 | 40 | 0.587113% |
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 | 7628 | 6814 | 36 | 36 | 0.47% | 0.53% | |
B | 7628 | 6814 | 7 | 7 | 0.09% | 0.10% | |
C | 7628 | 6814 | 0 | 0 | 0.00% | 0.00% | |
D | 7628 | 6814 | 15 | 15 | 0.20% | 0.22% | |
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 | 4060653 | 26465.16 | 729 | 714 | 153.4 |
A | 13 | 254 | 12771 | 78.59 | 729 | 714 | 153.4 |
A | 13 | 248 | 10354 | 62.84 | 729 | 714 | 153.4 |
B | 12 | 16 | 284848 | 1935.7 | 740 | 717 | 146.8 |
B | 0 | 183 | 117455 | 795.3 | 740 | 717 | 146.8 |
B | 12 | 111 | 19361 | 127.01 | 740 | 717 | 146.8 |
C | 12 | 249 | 11215 | 60.79 | 730 | 735 | 172.4 |
C | 12 | 250 | 8648 | 45.9 | 730 | 735 | 172.4 |
C | 14 | 67 | 7308 | 38.13 | 730 | 735 | 172.4 |
D | 7 | 80 | 106639 | 586.39 | 721 | 698 | 180.7 |
D | 13 | 171 | 80182 | 439.95 | 721 | 698 | 180.7 |
D | 2 | 249 | 50250 | 274.28 | 721 | 698 | 180.7 |
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 | |