Observation information
- date-obs: 2024-12-15
- time-obs: 02:18:21.619600000
- date-end: 2024-12-15
- time-end: 04:20:21.597500000
- obs_id: A13_037T01_9000006440
- exposure: 63.0167643428
- 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_49840cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006440_49840cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,080,216,000 | 53,665,920 |
Size | 1.0 GB
| 51.2 MB
|
Events in quadrant A | 9,207,058 | 494,396 |
Events in quadrant B | 3,706,826 | 674,482 |
Events in quadrant C | 12,703,899 | 21,444 |
Events in quadrant D | 13,894,157 | 6,494 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 12 | 0 |
B | 0 | 12 | 0 |
C | 0 | 12 | 0 |
D | 0 | 12 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 124 | 0 |
B | 0 | 124 | 0 |
C | 0 | 124 | 0 |
D | 0 | 124 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 31638 | 1 |
B | 0 | 15130 | 1 |
C | 0 | 41923 | 1 |
D | 0 | 45441 | 1 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6131 | 1483 | 24.188550% |
B | 6131 | 193 | 3.147937% |
C | 6131 | 5959 | 97.194585% |
D | 6131 | 6081 | 99.184472% |
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 | 7321 | 6132 | 1256 | 1256 | 17.16% | 20.48% |  |
B | 7321 | 6132 | 53 | 53 | 0.72% | 0.86% |  |
C | 7320 | 6130 | 3526 | 3526 | 48.17% | 57.52% |  |
D | 7320 | 6130 | 4871 | 4871 | 66.54% | 79.46% |  |
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 | 3475938 | 20942.41 | 646 | 629 | 165.9 |
A | 3 | 84 | 1555388 | 9369.06 | 646 | 629 | 165.9 |
A | 3 | 1 | 168627 | 1012.37 | 646 | 629 | 165.9 |
B | 0 | 229 | 265373 | 1820.94 | 691 | 671 | 145.4 |
B | 4 | 206 | 197359 | 1353.06 | 691 | 671 | 145.4 |
B | 10 | 44 | 181480 | 1243.82 | 691 | 671 | 145.4 |
C | 1 | 44 | 2653459 | 55377.73 | 151 | 150 | 47.9 |
C | 15 | 230 | 1777933 | 37104.46 | 151 | 150 | 47.9 |
C | 15 | 197 | 1761485 | 36761.17 | 151 | 150 | 47.9 |
D | 7 | 61 | 5488619 | 97028.58 | 172 | 164 | 56.6 |
D | 7 | 126 | 2046288 | 36172.75 | 172 | 164 | 56.6 |
D | 8 | 129 | 1171949 | 20715.6 | 172 | 164 | 56.6 |
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 |  |