Observation information
- date-obs: 2025-04-30
- time-obs: 12:05:00.159400000
- date-end: 2025-04-30
- time-end: 17:39:10.969500000
- obs_id: C09_011T05_9000006466
- exposure: 10952.6854719
- 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_51867cztM0_level2.fits
| modeM0/AS1C09_011T05_9000006466_51867cztM0_level2_quad_clean.evt
|
Size (bytes) | 2,176,453,440 | 226,229,760 |
Size | 2.0 GB
| 215.7 MB
|
Events in quadrant A | 14,044,105 | 1,593,886 |
Events in quadrant B | 19,799,008 | 1,568,023 |
Events in quadrant C | 13,895,140 | 1,544,066 |
Events in quadrant D | 31,395,581 | 861,185 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 378 | 0 |
B | 0 | 378 | 0 |
C | 0 | 378 | 0 |
D | 0 | 378 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 54272 | 3 |
B | 0 | 71770 | 3 |
C | 0 | 54241 | 3 |
D | 0 | 106108 | 3 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 15 | 0 |
B | 0 | 15 | 0 |
C | 0 | 15 | 0 |
D | 0 | 15 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 18586 | 941 | 5.062951% |
B | 18586 | 3143 | 16.910578% |
C | 18586 | 1259 | 6.773916% |
D | 18587 | 8574 | 46.129015% |
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 | 20050 | 18587 | 752 | 752 | 3.75% | 4.05% |  |
B | 20050 | 18587 | 2383 | 2383 | 11.89% | 12.82% |  |
C | 20050 | 18587 | 1041 | 1041 | 5.19% | 5.60% |  |
D | 20051 | 18588 | 8322 | 8322 | 41.50% | 44.77% |  |
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 | 1730131 | 3634.56 | 1926 | 1878 | 475.5 |
A | 4 | 249 | 782051 | 1640.72 | 1926 | 1878 | 475.5 |
A | 4 | 3 | 619367 | 1298.59 | 1926 | 1878 | 475.5 |
B | 4 | 170 | 4961439 | 12787.78 | 1828 | 1765 | 387.8 |
B | 12 | 32 | 2971610 | 7657.3 | 1828 | 1765 | 387.8 |
B | 10 | 44 | 1698914 | 4375.84 | 1828 | 1765 | 387.8 |
C | 14 | 80 | 1974872 | 3866.12 | 1870 | 1861 | 510.3 |
C | 15 | 147 | 821534 | 1606.15 | 1870 | 1861 | 510.3 |
C | 15 | 230 | 783179 | 1530.99 | 1870 | 1861 | 510.3 |
D | 11 | 129 | 16396019 | 39920.72 | 1462 | 1407 | 410.7 |
D | 6 | 42 | 4840433 | 11782.98 | 1462 | 1407 | 410.7 |
D | 7 | 60 | 456658 | 1108.53 | 1462 | 1407 | 410.7 |
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 |  |