Observation information
- date-obs: 2025-05-07
- time-obs: 02:07:01.710000000
- date-end: 2025-05-07
- time-end: 04:04:50.694300000
- obs_id: C09_011T06_9000006468
- exposure: 4172.93402624
- 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_51963cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006468_51963cztM0_level2_quad_clean.evt
|
Size (bytes) | 999,786,240 | 78,600,960 |
Size | 953.5 MB
| 75.0 MB
|
Events in quadrant A | 7,644,999 | 537,360 |
Events in quadrant B | 5,388,421 | 635,927 |
Events in quadrant C | 11,204,733 | 371,541 |
Events in quadrant D | 12,244,307 | 358,468 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 27480 | 1 |
B | 0 | 20719 | 1 |
C | 0 | 38000 | 1 |
D | 0 | 41118 | 1 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 3 | 0 |
B | 0 | 3 | 0 |
C | 0 | 3 | 0 |
D | 0 | 3 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 142 | 0 |
B | 0 | 142 | 0 |
C | 0 | 142 | 0 |
D | 0 | 142 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6829 | 1127 | 16.503148% |
B | 6829 | 597 | 8.742129% |
C | 6829 | 3059 | 44.794260% |
D | 6830 | 2932 | 42.928258% |
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 | 7069 | 6831 | 865 | 865 | 12.24% | 12.66% |  |
B | 7069 | 6831 | 369 | 369 | 5.22% | 5.40% |  |
C | 7069 | 6830 | 2296 | 2296 | 32.48% | 33.62% |  |
D | 7070 | 6833 | 2828 | 2828 | 40.00% | 41.39% |  |
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 | 2396394 | 15045.18 | 642 | 626 | 159.2 |
A | 4 | 95 | 1632175 | 10245.96 | 642 | 626 | 159.2 |
A | 15 | 250 | 146542 | 916.34 | 642 | 626 | 159.2 |
B | 4 | 249 | 752814 | 5230.87 | 680 | 657 | 143.8 |
B | 10 | 254 | 533203 | 3703.59 | 680 | 657 | 143.8 |
B | 5 | 185 | 518543 | 3601.63 | 680 | 657 | 143.8 |
C | 15 | 224 | 7393693 | 49444.88 | 531 | 525 | 149.5 |
C | 15 | 192 | 489705 | 3271.59 | 531 | 525 | 149.5 |
C | 0 | 193 | 477518 | 3190.09 | 531 | 525 | 149.5 |
D | 6 | 42 | 7215120 | 44712.3 | 561 | 537 | 161.4 |
D | 12 | 17 | 1097380 | 6797.67 | 561 | 537 | 161.4 |
D | 10 | 181 | 387667 | 2399.23 | 561 | 537 | 161.4 |
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 |  |