Observation information
- date-obs: 2024-09-21
- time-obs: 22:15:39.602100000
- date-end: 2024-09-22
- time-end: 00:26:59.596000000
- obs_id: A13_037T01_9000006436
- exposure: 5991.5134027
- 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_48591cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006436_48591cztM0_level2_quad_clean.evt
|
Size (bytes) | 452,753,280 | 105,120,000 |
Size | 431.8 MB
| 100.3 MB
|
Events in quadrant A | 6,637,937 | 686,922 |
Events in quadrant B | 3,910,831 | 710,270 |
Events in quadrant C | 2,715,252 | 708,596 |
Events in quadrant D | 2,999,236 | 631,785 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 24002 | 2 |
B | 0 | 16265 | 2 |
C | 0 | 12981 | 2 |
D | 0 | 13936 | 2 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 15 | 0 |
B | 0 | 16 | 0 |
C | 0 | 16 | 0 |
D | 0 | 16 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 128 | 0 |
B | 0 | 128 | 0 |
C | 0 | 128 | 0 |
D | 0 | 128 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6389 | 253 | 3.959931% |
B | 6389 | 362 | 5.665988% |
C | 6389 | 12 | 0.187823% |
D | 6389 | 54 | 0.845203% |
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 | 7579 | 6390 | 140 | 140 | 1.85% | 2.19% | |
B | 7579 | 6390 | 229 | 229 | 3.02% | 3.58% | |
C | 7579 | 6390 | 0 | 0 | 0.00% | 0.00% | |
D | 7579 | 6389 | 36 | 36 | 0.47% | 0.56% | |
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 | 3916541 | 27477.0 | 685 | 672 | 142.5 |
A | 13 | 248 | 49154 | 340.19 | 685 | 672 | 142.5 |
A | 0 | 31 | 20595 | 139.8 | 685 | 672 | 142.5 |
B | 12 | 16 | 1132544 | 8489.87 | 684 | 664 | 133.3 |
B | 5 | 255 | 20436 | 148.3 | 684 | 664 | 133.3 |
B | 12 | 111 | 16854 | 121.44 | 684 | 664 | 133.3 |
C | 12 | 250 | 15105 | 88.77 | 690 | 696 | 162.3 |
C | 3 | 233 | 8049 | 45.3 | 690 | 696 | 162.3 |
C | 14 | 254 | 5839 | 31.69 | 690 | 696 | 162.3 |
D | 13 | 171 | 143927 | 858.63 | 674 | 651 | 166.9 |
D | 2 | 165 | 138189 | 824.24 | 674 | 651 | 166.9 |
D | 2 | 249 | 122230 | 728.6 | 674 | 651 | 166.9 |
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 | |