Observation information
- date-obs: 2025-05-05
- time-obs: 22:09:50.943200000
- date-end: 2025-05-06
- time-end: 00:15:59.925800000
- obs_id: C09_011T06_9000006468
- exposure: 1289.64477104
- sourceid: NGC 188
- observer: stalin
- ra_pnt: 12.08
- dec_pnt: 85.15722
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1C09_011T06_9000006468_51946cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006468_51946cztM0_level2_quad_clean.evt
|
Size (bytes) | 924,215,040 | 70,954,560 |
Size | 881.4 MB
| 67.7 MB
|
Events in quadrant A | 8,530,442 | 451,026 |
Events in quadrant B | 3,788,798 | 659,665 |
Events in quadrant C | 8,798,515 | 465,012 |
Events in quadrant D | 12,590,695 | 118,661 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 29855 | 4 |
B | 0 | 15882 | 2 |
C | 0 | 30601 | 2 |
D | 0 | 41846 | 2 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 10 | 0 |
B | 0 | 10 | 0 |
C | 0 | 10 | 0 |
D | 0 | 10 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 134 | 0 |
B | 0 | 134 | 0 |
C | 0 | 134 | 0 |
D | 0 | 134 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6493 | 1925 | 29.647312% |
B | 6494 | 214 | 3.295350% |
C | 6494 | 1913 | 29.457961% |
D | 6494 | 5383 | 82.891900% |
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 | 7568 | 6494 | 1715 | 1715 | 22.66% | 26.41% |  |
B | 7569 | 6495 | 82 | 82 | 1.08% | 1.26% |  |
C | 7569 | 6495 | 1742 | 1742 | 23.01% | 26.82% |  |
D | 7569 | 6495 | 3598 | 3598 | 47.54% | 55.40% |  |
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 | 159 | 3231563 | 23214.72 | 552 | 538 | 139.2 |
A | 7 | 64 | 2040934 | 14660.13 | 552 | 538 | 139.2 |
A | 4 | 249 | 241678 | 1732.58 | 552 | 538 | 139.2 |
B | 12 | 32 | 195267 | 1375.28 | 670 | 645 | 141.5 |
B | 0 | 216 | 153924 | 1083.13 | 670 | 645 | 141.5 |
B | 4 | 206 | 128524 | 903.64 | 670 | 645 | 141.5 |
C | 15 | 224 | 5526229 | 33702.1 | 578 | 572 | 164.0 |
C | 15 | 147 | 323774 | 1971.27 | 578 | 572 | 164.0 |
C | 13 | 3 | 149939 | 911.02 | 578 | 572 | 164.0 |
D | 12 | 17 | 8615942 | 112289.94 | 262 | 248 | 76.7 |
D | 6 | 42 | 2082490 | 27138.25 | 262 | 248 | 76.7 |
D | 3 | 12 | 341842 | 4452.06 | 262 | 248 | 76.7 |
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 |  |