Observation information
- date-obs: 2025-05-06
- time-obs: 22:47:37.737700000
- date-end: 2025-05-07
- time-end: 07:32:58.668100000
- obs_id: C09_011T06_9000006468
- exposure: 17526.844869
- 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_51965cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006468_51965cztM0_level2_quad_clean.evt
|
Size (bytes) | 4,312,690,560 | 323,737,920 |
Size | 4.0 GB
| 308.7 MB
|
Events in quadrant A | 29,723,163 | 2,368,014 |
Events in quadrant B | 27,648,415 | 2,583,443 |
Events in quadrant C | 46,919,297 | 1,519,306 |
Events in quadrant D | 53,096,390 | 1,306,632 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 108726 | 4 |
B | 0 | 102536 | 4 |
C | 0 | 159736 | 4 |
D | 0 | 177970 | 4 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 21 | 0 |
B | 0 | 21 | 0 |
C | 0 | 21 | 0 |
D | 0 | 21 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 598 | 0 |
B | 0 | 598 | 0 |
C | 0 | 598 | 0 |
D | 0 | 598 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 29397 | 4517 | 15.365513% |
B | 29396 | 4446 | 15.124507% |
C | 29396 | 12409 | 42.213226% |
D | 29396 | 13306 | 45.264662% |
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 | 31522 | 29402 | 3585 | 3585 | 11.37% | 12.19% |  |
B | 31521 | 29400 | 3264 | 3264 | 10.36% | 11.10% |  |
C | 31521 | 29397 | 9314 | 9314 | 29.55% | 31.68% |  |
D | 31521 | 29402 | 12911 | 12911 | 40.96% | 43.91% |  |
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 | 4 | 159 | 5505439 | 7909.98 | 2814 | 2744 | 695.7 |
A | 7 | 64 | 5217213 | 7495.66 | 2814 | 2744 | 695.7 |
A | 4 | 95 | 3816677 | 5482.43 | 2814 | 2744 | 695.7 |
B | 12 | 32 | 5638918 | 9655.65 | 2802 | 2709 | 583.7 |
B | 5 | 185 | 3674527 | 6290.36 | 2802 | 2709 | 583.7 |
B | 4 | 249 | 1712901 | 2929.81 | 2802 | 2709 | 583.7 |
C | 15 | 224 | 29306531 | 44964.56 | 2354 | 2332 | 651.7 |
C | 0 | 193 | 2413455 | 3699.64 | 2354 | 2332 | 651.7 |
C | 15 | 192 | 1756275 | 2691.26 | 2354 | 2332 | 651.7 |
D | 6 | 42 | 26410728 | 38421.04 | 2390 | 2276 | 687.3 |
D | 12 | 17 | 5026770 | 7310.02 | 2390 | 2276 | 687.3 |
D | 7 | 126 | 4056720 | 5898.71 | 2390 | 2276 | 687.3 |
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 |  |