Observation information
- date-obs: 2025-05-05
- time-obs: 18:47:01.971800000
- date-end: 2025-05-05
- time-end: 20:48:26.955000000
- obs_id: C09_011T06_9000006468
- exposure: 2038.01296926
- 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_51944cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006468_51944cztM0_level2_quad_clean.evt
|
Size (bytes) | 864,069,120 | 70,839,360 |
Size | 824.0 MB
| 67.6 MB
|
Events in quadrant A | 5,939,997 | 537,144 |
Events in quadrant B | 4,287,989 | 625,361 |
Events in quadrant C | 9,907,512 | 369,328 |
Events in quadrant D | 11,374,424 | 183,796 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 21895 | 3 |
B | 0 | 17138 | 1 |
C | 0 | 33673 | 1 |
D | 0 | 38033 | 1 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 11 | 0 |
B | 0 | 11 | 0 |
C | 0 | 11 | 0 |
D | 0 | 11 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 126 | 0 |
B | 0 | 126 | 0 |
C | 0 | 126 | 0 |
D | 0 | 126 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6139 | 702 | 11.435087% |
B | 6139 | 313 | 5.098550% |
C | 6139 | 2634 | 42.906011% |
D | 6140 | 4270 | 69.543974% |
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 | 7284 | 6140 | 672 | 672 | 9.23% | 10.94% |  |
B | 7284 | 6140 | 152 | 152 | 2.09% | 2.48% |  |
C | 7284 | 6140 | 2452 | 2452 | 33.66% | 39.93% |  |
D | 7285 | 6141 | 3038 | 3038 | 41.70% | 49.47% |  |
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 | 7 | 64 | 1768280 | 11637.06 | 610 | 597 | 151.9 |
A | 12 | 3 | 625387 | 4113.14 | 610 | 597 | 151.9 |
A | 15 | 239 | 304388 | 1999.93 | 610 | 597 | 151.9 |
B | 4 | 171 | 529539 | 3959.24 | 632 | 613 | 133.6 |
B | 12 | 32 | 454411 | 3396.87 | 632 | 613 | 133.6 |
B | 5 | 32 | 90719 | 674.48 | 632 | 613 | 133.6 |
C | 15 | 224 | 6490277 | 45006.49 | 512 | 508 | 144.2 |
C | 15 | 147 | 441313 | 3056.98 | 512 | 508 | 144.2 |
C | 15 | 189 | 280037 | 1938.53 | 512 | 508 | 144.2 |
D | 12 | 17 | 8668353 | 96491.37 | 307 | 292 | 89.8 |
D | 6 | 42 | 801902 | 8923.39 | 307 | 292 | 89.8 |
D | 3 | 12 | 276858 | 3078.69 | 307 | 292 | 89.8 |
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 |  |