Observation information
- date-obs: 2024-05-01
- time-obs: 12:48:26.328900000
- date-end: 2024-05-01
- time-end: 15:03:19.323400000
- obs_id: A13_037T01_9000006212
- exposure: 7585.69620341
- 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_9000006212_46464cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006212_46464cztM0_level2_quad_clean.evt
|
Size (bytes) | 581,667,840 | 128,531,520 |
Size | 554.7 MB
| 122.6 MB
|
Events in quadrant A | 7,466,876 | 858,199 |
Events in quadrant B | 3,923,536 | 888,590 |
Events in quadrant C | 3,770,544 | 842,426 |
Events in quadrant D | 5,743,121 | 739,854 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 162 | 0 |
B | 0 | 162 | 0 |
C | 0 | 162 | 0 |
D | 0 | 162 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 27519 | 1 |
B | 0 | 17237 | 1 |
C | 0 | 17200 | 1 |
D | 0 | 22689 | 1 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 8093 | 264 | 3.262078% |
B | 8093 | 121 | 1.495119% |
C | 8093 | 64 | 0.790807% |
D | 8094 | 512 | 6.325673% |
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 | 8093 | 8093 | 1 | 1 | 0.01% | 0.01% | |
B | 8093 | 8093 | 15 | 15 | 0.19% | 0.19% | |
C | 8093 | 8093 | 23 | 23 | 0.28% | 0.28% | |
D | 8093 | 8093 | 426 | 426 | 5.26% | 5.26% | |
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 | 3742177 | 19047.52 | 933 | 909 | 196.4 |
A | 0 | 247 | 67205 | 337.53 | 933 | 909 | 196.4 |
A | 13 | 254 | 15864 | 76.14 | 933 | 909 | 196.4 |
B | 5 | 172 | 103337 | 556.74 | 928 | 898 | 184.0 |
B | 0 | 245 | 40797 | 216.84 | 928 | 898 | 184.0 |
B | 4 | 158 | 24413 | 127.8 | 928 | 898 | 184.0 |
C | 12 | 2 | 130162 | 606.37 | 908 | 909 | 213.2 |
C | 3 | 233 | 64204 | 296.94 | 908 | 909 | 213.2 |
C | 12 | 249 | 30967 | 141.01 | 908 | 909 | 213.2 |
D | 1 | 52 | 1294500 | 5763.09 | 893 | 864 | 224.5 |
D | 12 | 233 | 310827 | 1380.87 | 893 | 864 | 224.5 |
D | 10 | 181 | 175228 | 776.78 | 893 | 864 | 224.5 |
Detector plane histogram (DPH)
Histogram calculated using DETX and DETY for each event in the final _common_clean file
Quadrant A |
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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 |
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|
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 |
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|
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 | |