Observation information
- date-obs: 2024-12-14
- time-obs: 07:05:36.838500000
- date-end: 2024-12-14
- time-end: 09:13:29.814900000
- obs_id: A13_037T01_9000006440
- exposure: 263.169147491
- 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_49828cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006440_49828cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,370,188,800 | 48,651,840 |
Size | 1.3 GB
| 46.4 MB
|
Events in quadrant A | 16,248,099 | 151,816 |
Events in quadrant B | 4,261,423 | 709,552 |
Events in quadrant C | 13,722,928 | 24,925 |
Events in quadrant D | 15,949,422 | 100,222 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 7 | 0 |
B | 0 | 7 | 0 |
C | 0 | 7 | 0 |
D | 0 | 7 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 142 | 0 |
B | 0 | 142 | 0 |
C | 0 | 142 | 0 |
D | 0 | 142 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 53029 | 1 |
B | 0 | 17498 | 1 |
C | 0 | 45556 | 1 |
D | 0 | 52154 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6979 | 5645 | 80.885514% |
B | 6979 | 302 | 4.327268% |
C | 6979 | 6767 | 96.962316% |
D | 6978 | 6036 | 86.500430% |
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 | 7674 | 6979 | 4835 | 4835 | 63.00% | 69.28% |  |
B | 7674 | 6981 | 133 | 133 | 1.73% | 1.91% |  |
C | 7674 | 6980 | 3668 | 3668 | 47.80% | 52.55% |  |
D | 7673 | 6980 | 5087 | 5087 | 66.30% | 72.88% |  |
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 | 3 | 84 | 6300091 | 59830.74 | 402 | 392 | 105.3 |
A | 4 | 4 | 5712361 | 54248.83 | 402 | 392 | 105.3 |
A | 3 | 130 | 447360 | 4245.03 | 402 | 392 | 105.3 |
B | 4 | 171 | 294213 | 1840.74 | 753 | 728 | 159.4 |
B | 0 | 229 | 292539 | 1830.24 | 753 | 728 | 159.4 |
B | 4 | 206 | 216876 | 1355.68 | 753 | 728 | 159.4 |
C | 15 | 197 | 4543434 | 60004.41 | 244 | 241 | 75.7 |
C | 1 | 44 | 2039926 | 26939.23 | 244 | 241 | 75.7 |
C | 15 | 147 | 1714606 | 22642.55 | 244 | 241 | 75.7 |
D | 7 | 61 | 4399499 | 39488.96 | 369 | 355 | 111.4 |
D | 8 | 48 | 2428030 | 21792.05 | 369 | 355 | 111.4 |
D | 7 | 126 | 1474652 | 13234.04 | 369 | 355 | 111.4 |
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 |  |