Observation information
- date-obs: 2024-09-23
- time-obs: 17:43:59.472700000
- date-end: 2024-09-23
- time-end: 19:54:39.465300000
- obs_id: A13_037T01_9000006436
- exposure: 6098.12463403
- 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_9000006436_48618cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006436_48618cztM0_level2_quad_clean.evt
|
Size (bytes) | 473,353,920 | 103,651,200 |
Size | 451.4 MB
| 98.8 MB
|
Events in quadrant A | 7,154,046 | 668,169 |
Events in quadrant B | 3,087,530 | 719,547 |
Events in quadrant C | 2,856,051 | 701,587 |
Events in quadrant D | 3,914,407 | 591,401 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 25488 | 2 |
B | 0 | 14029 | 2 |
C | 0 | 13558 | 2 |
D | 0 | 16554 | 2 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 13 | 0 |
B | 0 | 14 | 0 |
C | 0 | 14 | 0 |
D | 0 | 14 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 132 | 0 |
B | 0 | 132 | 0 |
C | 0 | 132 | 0 |
D | 0 | 132 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6567 | 418 | 6.365159% |
B | 6567 | 116 | 1.766408% |
C | 6567 | 29 | 0.441602% |
D | 6567 | 402 | 6.121517% |
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 | 7637 | 6568 | 170 | 170 | 2.23% | 2.59% |  |
B | 7637 | 6568 | 47 | 47 | 0.62% | 0.72% |  |
C | 7637 | 6568 | 14 | 14 | 0.18% | 0.21% |  |
D | 7637 | 6568 | 353 | 353 | 4.62% | 5.37% |  |
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 | 4128306 | 28254.78 | 695 | 681 | 146.1 |
A | 13 | 248 | 303932 | 2075.84 | 695 | 681 | 146.1 |
A | 12 | 189 | 26249 | 175.02 | 695 | 681 | 146.1 |
B | 12 | 16 | 174132 | 1251.76 | 707 | 685 | 138.6 |
B | 15 | 85 | 53510 | 381.24 | 707 | 685 | 138.6 |
B | 12 | 111 | 17680 | 122.65 | 707 | 685 | 138.6 |
C | 12 | 2 | 98532 | 589.21 | 704 | 705 | 166.0 |
C | 14 | 254 | 7368 | 40.13 | 704 | 705 | 166.0 |
C | 13 | 61 | 4698 | 24.05 | 704 | 705 | 166.0 |
D | 2 | 165 | 1194846 | 7182.11 | 667 | 647 | 166.3 |
D | 2 | 249 | 72933 | 434.74 | 667 | 647 | 166.3 |
D | 2 | 234 | 33197 | 195.76 | 667 | 647 | 166.3 |
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 |  |