Observation information
- date-obs: 2025-05-05
- time-obs: 04:53:19.863900000
- date-end: 2025-05-05
- time-end: 06:55:53.070500000
- obs_id: C09_011T05_9000006466
- exposure: 3854.58755946
- 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_51935cztM0_level2.fits
| modeM0/AS1C09_011T05_9000006466_51935cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,072,877,760 | 82,673,280 |
Size | 1023.2 MB
| 78.8 MB
|
Events in quadrant A | 8,188,392 | 591,635 |
Events in quadrant B | 4,611,997 | 713,175 |
Events in quadrant C | 12,661,305 | 365,487 |
Events in quadrant D | 13,685,574 | 320,065 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 148 | 0 |
B | 0 | 148 | 0 |
C | 0 | 148 | 0 |
D | 0 | 148 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 29454 | 0 |
B | 0 | 18953 | 0 |
C | 0 | 42730 | 0 |
D | 0 | 45698 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 7354 | 1158 | 15.746532% |
B | 7355 | 277 | 3.766145% |
C | 7355 | 3678 | 50.006798% |
D | 7355 | 3842 | 52.236574% |
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 | 7354 | 7354 | 1052 | 1052 | 14.31% | 14.31% |  |
B | 7355 | 7355 | 223 | 223 | 3.03% | 3.03% |  |
C | 7355 | 7355 | 3459 | 3459 | 47.03% | 47.03% |  |
D | 7354 | 7354 | 3851 | 3851 | 52.37% | 52.37% |  |
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 | 4 | 159 | 1910578 | 10933.74 | 703 | 684 | 174.7 |
A | 7 | 64 | 1003440 | 5740.56 | 703 | 684 | 174.7 |
A | 12 | 3 | 929992 | 5320.09 | 703 | 684 | 174.7 |
B | 4 | 206 | 608579 | 3869.41 | 736 | 712 | 157.1 |
B | 10 | 44 | 190159 | 1205.94 | 736 | 712 | 157.1 |
B | 4 | 171 | 153977 | 975.62 | 736 | 712 | 157.1 |
C | 15 | 224 | 6622528 | 42327.7 | 554 | 550 | 156.4 |
C | 15 | 230 | 1636820 | 10459.04 | 554 | 550 | 156.4 |
C | 0 | 193 | 767706 | 4903.66 | 554 | 550 | 156.4 |
D | 12 | 17 | 4011493 | 27183.21 | 509 | 486 | 147.6 |
D | 15 | 94 | 2092351 | 14176.89 | 509 | 486 | 147.6 |
D | 0 | 33 | 1951369 | 13221.43 | 509 | 486 | 147.6 |
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 |  |