Observation information
- date-obs: 2025-04-30
- time-obs: 06:47:55.602400000
- date-end: 2025-04-30
- time-end: 08:55:08.041600000
- obs_id: C09_011T05_9000006466
- exposure: 4828.82018852
- 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_51862cztM0_level2.fits
| modeM0/AS1C09_011T05_9000006466_51862cztM0_level2_quad_clean.evt
|
Size (bytes) | 752,947,200 | 99,737,280 |
Size | 718.1 MB
| 95.1 MB
|
Events in quadrant A | 5,911,491 | 692,724 |
Events in quadrant B | 5,290,982 | 729,154 |
Events in quadrant C | 4,597,340 | 669,535 |
Events in quadrant D | 11,481,578 | 398,073 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 152 | 0 |
B | 0 | 152 | 0 |
C | 0 | 152 | 0 |
D | 0 | 152 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 22930 | 53 |
B | 0 | 21086 | 19 |
C | 0 | 19138 | 19 |
D | 0 | 39503 | 155 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 7621 | 192 | 2.519354% |
B | 7625 | 425 | 5.573770% |
C | 7625 | 228 | 2.990164% |
D | 7613 | 3049 | 40.049915% |
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 | 7633 | 7630 | 138 | 138 | 1.81% | 1.81% |  |
B | 7633 | 7631 | 310 | 310 | 4.06% | 4.06% |  |
C | 7634 | 7634 | 217 | 217 | 2.84% | 2.84% |  |
D | 7625 | 7616 | 2882 | 2882 | 37.80% | 37.84% |  |
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 | 12 | 3 | 1095955 | 5522.03 | 792 | 771 | 198.3 |
A | 4 | 175 | 335628 | 1688.38 | 792 | 771 | 198.3 |
A | 11 | 3 | 331467 | 1667.4 | 792 | 771 | 198.3 |
B | 10 | 44 | 1337995 | 8050.91 | 782 | 755 | 166.1 |
B | 0 | 171 | 160493 | 961.71 | 782 | 755 | 166.1 |
B | 0 | 213 | 115930 | 693.42 | 782 | 755 | 166.1 |
C | 0 | 193 | 356468 | 1708.06 | 760 | 752 | 208.3 |
C | 13 | 3 | 344103 | 1648.68 | 760 | 752 | 208.3 |
C | 15 | 230 | 181100 | 865.98 | 760 | 752 | 208.3 |
D | 11 | 129 | 6779498 | 42004.15 | 575 | 554 | 161.4 |
D | 8 | 176 | 1164975 | 7215.06 | 575 | 554 | 161.4 |
D | 6 | 42 | 530094 | 3281.17 | 575 | 554 | 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 |  |