Observation information
- date-obs: 2024-12-16
- time-obs: 21:45:50.128500000
- date-end: 2024-12-16
- time-end: 23:47:16.106100000
- obs_id: A13_037T01_9000006440
- exposure: 22.8359473348
- 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_49867cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006440_49867cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,067,065,920 | 44,015,040 |
Size | 1017.6 MB
| 42.0 MB
|
Events in quadrant A | 12,083,859 | 278,014 |
Events in quadrant B | 4,263,489 | 616,728 |
Events in quadrant C | 9,865,582 | 4,187 |
Events in quadrant D | 12,807,450 | 2,516 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 11 | 0 |
B | 0 | 11 | 0 |
C | 0 | 11 | 0 |
D | 0 | 11 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 126 | 0 |
B | 0 | 126 | 0 |
C | 0 | 126 | 0 |
D | 0 | 126 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 40103 | 1 |
B | 0 | 16874 | 1 |
C | 0 | 33638 | 3 |
D | 0 | 42270 | 1 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6171 | 3744 | 60.670880% |
B | 6171 | 422 | 6.838438% |
C | 6171 | 6143 | 99.546265% |
D | 6171 | 6157 | 99.773132% |
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 | 7286 | 6171 | 3337 | 3337 | 45.80% | 54.08% |  |
B | 7286 | 6171 | 311 | 311 | 4.27% | 5.04% |  |
C | 7285 | 6170 | 1982 | 1982 | 27.21% | 32.12% |  |
D | 7285 | 6170 | 3795 | 3795 | 52.09% | 61.51% |  |
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 | 7941075 | 68372.79 | 461 | 450 | 116.1 |
A | 8 | 8 | 719161 | 6188.46 | 461 | 450 | 116.1 |
A | 8 | 62 | 497592 | 4280.64 | 461 | 450 | 116.1 |
B | 4 | 206 | 590756 | 4174.4 | 655 | 632 | 141.4 |
B | 5 | 172 | 361384 | 2551.88 | 655 | 632 | 141.4 |
B | 0 | 229 | 131797 | 927.83 | 655 | 632 | 141.4 |
C | 4 | 111 | 4725525 | 126840.38 | 81 | 78 | 37.3 |
C | 15 | 230 | 2034870 | 54617.86 | 81 | 78 | 37.3 |
C | 15 | 196 | 525234 | 14096.23 | 81 | 78 | 37.3 |
D | 7 | 61 | 7298942 | 189046.91 | 103 | 98 | 38.6 |
D | 8 | 129 | 2545626 | 65931.56 | 103 | 98 | 38.6 |
D | 15 | 185 | 1008836 | 26127.26 | 103 | 98 | 38.6 |
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 |  |