Observation information
- date-obs: 2025-05-13
- time-obs: 08:55:22.502800000
- date-end: 2025-05-13
- time-end: 11:03:31.446300000
- obs_id: C09_011T06_9000006468
- exposure: 412.97850883
- 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_52056cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006468_52056cztM0_level2_quad_clean.evt
|
Size (bytes) | 761,163,840 | 69,782,400 |
Size | 725.9 MB
| 66.5 MB
|
Events in quadrant A | 3,801,770 | 550,353 |
Events in quadrant B | 5,199,971 | 566,202 |
Events in quadrant C | 3,551,047 | 531,146 |
Events in quadrant D | 15,145,207 | 34,243 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 17364 | 1857 |
B | 0 | 22062 | 2171 |
C | 0 | 17094 | 1954 |
D | 0 | 57767 | 8717 |
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 | 12 |
B | 0 | 142 | 12 |
C | 0 | 141 | 11 |
D | 0 | 142 | 12 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6229 | 203 | 3.258950% |
B | 6227 | 596 | 9.571222% |
C | 6224 | 179 | 2.875964% |
D | 5916 | 5599 | 94.641650% |
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 | 7679 | 6405 | 102 | 102 | 1.33% | 1.59% |  |
B | 7678 | 6396 | 352 | 352 | 4.58% | 5.50% |  |
C | 7575 | 6390 | 114 | 114 | 1.50% | 1.78% |  |
D | 7246 | 6010 | 5271 | 5271 | 72.74% | 87.70% |  |
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 | 8 | 9 | 243270 | 1508.89 | 641 | 623 | 160.8 |
A | 3 | 14 | 231923 | 1438.33 | 641 | 623 | 160.8 |
A | 4 | 249 | 156191 | 967.4 | 641 | 623 | 160.8 |
B | 8 | 3 | 939303 | 7092.79 | 617 | 596 | 132.3 |
B | 12 | 32 | 732390 | 5529.37 | 617 | 596 | 132.3 |
B | 5 | 185 | 296226 | 2233.76 | 617 | 596 | 132.3 |
C | 15 | 224 | 742920 | 4391.28 | 616 | 611 | 169.0 |
C | 13 | 3 | 75664 | 443.99 | 616 | 611 | 169.0 |
C | 12 | 252 | 59433 | 347.97 | 616 | 611 | 169.0 |
D | 15 | 94 | 6459208 | 85673.0 | 262 | 250 | 75.4 |
D | 6 | 42 | 4086551 | 54201.57 | 262 | 250 | 75.4 |
D | 12 | 17 | 1737181 | 23039.02 | 262 | 250 | 75.4 |
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 |  |