Observation information
- date-obs: 2024-12-15
- time-obs: 17:00:35.457300000
- date-end: 2024-12-15
- time-end: 19:59:19.421400000
- obs_id: A13_037T01_9000006440
- exposure: 95.6298162341
- 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_9000006440_49849cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006440_49849cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,576,549,440 | 76,947,840 |
Size | 1.5 GB
| 73.4 MB
|
Events in quadrant A | 13,320,539 | 645,877 |
Events in quadrant B | 5,482,762 | 940,199 |
Events in quadrant C | 19,366,294 | 83,848 |
Events in quadrant D | 19,465,280 | 9,262 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 13 | 0 |
B | 0 | 13 | 0 |
C | 0 | 13 | 0 |
D | 0 | 13 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 192 | 0 |
B | 0 | 192 | 0 |
C | 0 | 192 | 0 |
D | 0 | 192 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 46124 | 2 |
B | 0 | 22611 | 2 |
C | 0 | 63990 | 2 |
D | 0 | 64244 | 7 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 9369 | 2722 | 29.053261% |
B | 9370 | 213 | 2.273212% |
C | 9370 | 8597 | 91.750267% |
D | 9369 | 9287 | 99.124773% |
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 | 10724 | 9371 | 2263 | 2263 | 21.10% | 24.15% |  |
B | 10725 | 9372 | 110 | 110 | 1.03% | 1.17% |  |
C | 10724 | 9369 | 5490 | 5490 | 51.19% | 58.60% |  |
D | 10723 | 9368 | 5546 | 5546 | 51.72% | 59.20% |  |
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 | 4 | 4 | 2976783 | 13169.77 | 891 | 870 | 226.0 |
A | 3 | 84 | 2236203 | 9892.36 | 891 | 870 | 226.0 |
A | 3 | 14 | 1168112 | 5165.58 | 891 | 870 | 226.0 |
B | 0 | 229 | 531410 | 2486.76 | 1007 | 972 | 213.3 |
B | 4 | 206 | 493470 | 2308.89 | 1007 | 972 | 213.3 |
B | 10 | 28 | 147288 | 685.95 | 1007 | 972 | 213.3 |
C | 1 | 44 | 3524381 | 32879.9 | 327 | 323 | 107.2 |
C | 15 | 197 | 2827003 | 26373.28 | 327 | 323 | 107.2 |
C | 15 | 164 | 1914330 | 17857.92 | 327 | 323 | 107.2 |
D | 8 | 129 | 6956541 | 71232.11 | 269 | 256 | 97.7 |
D | 7 | 61 | 3858624 | 39509.55 | 269 | 256 | 97.7 |
D | 15 | 185 | 1355707 | 13879.77 | 269 | 256 | 97.7 |
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 |
 |
 |
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 |  |