Observation information
- date-obs: 2025-05-01
- time-obs: 08:59:38.840800000
- date-end: 2025-05-01
- time-end: 10:59:52.826400000
- obs_id: C09_011T05_9000006466
- exposure: 4957.86643368
- 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_011T05_9000006466_51878cztM0_level2.fits
| modeM0/AS1C09_011T05_9000006466_51878cztM0_level2_quad_clean.evt
|
Size (bytes) | 761,650,560 | 94,593,600 |
Size | 726.4 MB
| 90.2 MB
|
Events in quadrant A | 5,930,787 | 646,898 |
Events in quadrant B | 5,669,141 | 680,021 |
Events in quadrant C | 5,112,923 | 621,715 |
Events in quadrant D | 10,922,901 | 412,900 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 144 | 0 |
B | 0 | 144 | 0 |
C | 0 | 144 | 0 |
D | 0 | 144 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 22626 | 0 |
B | 0 | 21813 | 0 |
C | 0 | 20272 | 0 |
D | 0 | 37449 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 7214 | 246 | 3.410036% |
B | 7215 | 627 | 8.690229% |
C | 7215 | 314 | 4.352044% |
D | 7215 | 2586 | 35.841996% |
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 | 7214 | 7214 | 194 | 194 | 2.69% | 2.69% |  |
B | 7215 | 7215 | 407 | 407 | 5.64% | 5.64% |  |
C | 7215 | 7215 | 256 | 256 | 3.55% | 3.55% |  |
D | 7215 | 7214 | 2233 | 2233 | 30.95% | 30.95% |  |
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 | 175 | 1441484 | 7794.4 | 745 | 728 | 184.8 |
A | 11 | 3 | 430004 | 2322.36 | 745 | 728 | 184.8 |
A | 4 | 3 | 201113 | 1084.07 | 745 | 728 | 184.8 |
B | 12 | 32 | 1380547 | 8901.84 | 725 | 699 | 155.0 |
B | 10 | 44 | 482743 | 3109.82 | 725 | 699 | 155.0 |
B | 4 | 170 | 128589 | 825.06 | 725 | 699 | 155.0 |
C | 15 | 192 | 369775 | 1880.35 | 716 | 711 | 196.3 |
C | 1 | 60 | 362383 | 1842.69 | 716 | 711 | 196.3 |
C | 14 | 254 | 257363 | 1307.62 | 716 | 711 | 196.3 |
D | 11 | 129 | 4484914 | 26347.02 | 604 | 581 | 170.2 |
D | 6 | 42 | 1288207 | 7565.25 | 604 | 581 | 170.2 |
D | 0 | 5 | 780166 | 4580.33 | 604 | 581 | 170.2 |
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 |  |