Observation information
- date-obs: 2024-05-18
- time-obs: 08:21:14.387700000
- date-end: 2024-05-18
- time-end: 13:51:42.371900000
- obs_id: A13_037T01_9000006256
- exposure: 17775.7581722
- 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_9000006256_46715cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006256_46715cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,311,664,320 | 290,252,160 |
Size | 1.2 GB
| 276.8 MB
|
Events in quadrant A | 17,556,913 | 1,922,590 |
Events in quadrant B | 9,473,612 | 1,967,475 |
Events in quadrant C | 9,079,980 | 1,891,102 |
Events in quadrant D | 10,989,678 | 1,711,071 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 65184 | 2 |
B | 0 | 40963 | 2 |
C | 0 | 40613 | 2 |
D | 0 | 45867 | 2 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 380 | 0 |
B | 0 | 380 | 0 |
C | 0 | 380 | 0 |
D | 0 | 380 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 10 | 0 |
B | 0 | 10 | 0 |
C | 0 | 10 | 0 |
D | 0 | 10 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 18798 | 768 | 4.085541% |
B | 18799 | 588 | 3.127826% |
C | 18799 | 394 | 2.095856% |
D | 18799 | 873 | 4.643864% |
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 | 19828 | 18798 | 8 | 8 | 0.04% | 0.04% | |
B | 19829 | 18800 | 56 | 56 | 0.28% | 0.30% | |
C | 19829 | 18800 | 46 | 46 | 0.23% | 0.24% | |
D | 19829 | 18799 | 453 | 453 | 2.28% | 2.41% | |
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 | 9126938 | 21195.08 | 2084 | 2041 | 430.5 |
A | 9 | 191 | 267178 | 615.85 | 2084 | 2041 | 430.5 |
A | 13 | 254 | 34241 | 74.79 | 2084 | 2041 | 430.5 |
B | 4 | 171 | 576624 | 1402.15 | 2076 | 2009 | 409.8 |
B | 0 | 198 | 186487 | 450.16 | 2076 | 2009 | 409.8 |
B | 5 | 32 | 122764 | 294.66 | 2076 | 2009 | 409.8 |
C | 12 | 2 | 480050 | 998.93 | 2041 | 2050 | 478.5 |
C | 14 | 254 | 313373 | 650.61 | 2041 | 2050 | 478.5 |
C | 3 | 233 | 196782 | 406.95 | 2041 | 2050 | 478.5 |
D | 13 | 171 | 966344 | 1875.03 | 2044 | 1974 | 514.3 |
D | 1 | 52 | 811226 | 1573.44 | 2044 | 1974 | 514.3 |
D | 13 | 249 | 565434 | 1095.54 | 2044 | 1974 | 514.3 |
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 | |