Observation information
- date-obs: 2025-04-28
- time-obs: 08:02:01.525300000
- date-end: 2025-05-05
- time-end: 08:41:22.056900000
- obs_id: C09_011T05_9000006466
- exposure: 89703.6257812
- 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_9000006466cztM0_level2.fits
| modeM0/AS1C09_011T05_9000006466cztM0_level2_quad_clean.evt
|
Size (bytes) | 4,793,820,480 | 2,155,498,560 |
Size | 4.5 GB
| 2.0 GB
|
Events in quadrant A | 32,413,014 | 8,944,207 |
Events in quadrant B | 26,164,548 | 8,088,163 |
Events in quadrant C | 30,740,638 | 8,554,550 |
Events in quadrant D | 20,273,728 | 4,265,920 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 10593 | 0 |
B | 0 | 10594 | 0 |
C | 0 | 10594 | 0 |
D | 0 | 10742 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 1854521 | 0 |
B | 0 | 1754357 | 0 |
C | 0 | 1721739 | 0 |
D | 0 | 2951470 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 600 | 0 |
B | 0 | 602 | 0 |
C | 0 | 600 | 0 |
D | 0 | 602 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 523131 | 59071 | 11.291818% |
B | 523524 | 67946 | 12.978584% |
C | 523814 | 64914 | 12.392567% |
D | 522738 | 245093 | 46.886394% |
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 | 607160 | 523197 | 0 | 0 | 0.00% | 0.00% |  |
B | 607160 | 494805 | 0 | 0 | 0.00% | 0.00% |  |
C | 607161 | 524356 | 0 | 0 | 0.00% | 0.00% |  |
D | 607160 | 504966 | 0 | 0 | 0.00% | 0.00% |  |
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 | 14 | 188 | 29051 | 9.07 | 8680 | 8224 | 2295.9 |
A | 9 | 255 | 26866 | 8.12 | 8680 | 8224 | 2295.9 |
A | 14 | 204 | 24031 | 6.88 | 8680 | 8224 | 2295.9 |
B | 2 | 9 | 25756 | 12.76 | 7036 | 6743 | 1489.8 |
B | 2 | 8 | 23030 | 10.93 | 7036 | 6743 | 1489.8 |
B | 9 | 173 | 18147 | 7.65 | 7036 | 6743 | 1489.8 |
C | 2 | 31 | 21346 | 5.51 | 8392 | 7903 | 2440.3 |
C | 3 | 203 | 20461 | 5.15 | 8392 | 7903 | 2440.3 |
C | 15 | 127 | 20365 | 5.11 | 8392 | 7903 | 2440.3 |
D | 6 | 218 | 20878 | 8.99 | 5931 | 5374 | 1724.9 |
D | 15 | 11 | 16722 | 6.58 | 5931 | 5374 | 1724.9 |
D | 3 | 30 | 15893 | 6.1 | 5931 | 5374 | 1724.9 |
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 |  |