Observation information
- date-obs: 2025-05-08
- time-obs: 17:50:22.381700000
- date-end: 2025-05-08
- time-end: 19:57:31.365000000
- obs_id: C09_011T06_9000006468
- exposure: 5099.97115904
- 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_51988cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006468_51988cztM0_level2_quad_clean.evt
|
Size (bytes) | 773,461,440 | 88,272,000 |
Size | 737.6 MB
| 84.2 MB
|
Events in quadrant A | 6,075,977 | 571,942 |
Events in quadrant B | 5,617,748 | 646,149 |
Events in quadrant C | 7,274,008 | 542,221 |
Events in quadrant D | 9,163,996 | 461,000 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 22488 | 5 |
B | 0 | 21218 | 2 |
C | 0 | 26204 | 2 |
D | 0 | 31803 | 2 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 12 | 0 |
B | 0 | 12 | 0 |
C | 0 | 12 | 0 |
D | 0 | 12 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 132 | 0 |
B | 0 | 132 | 0 |
C | 0 | 132 | 0 |
D | 0 | 132 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6463 | 862 | 13.337459% |
B | 6464 | 679 | 10.504332% |
C | 6464 | 1178 | 18.224010% |
D | 6464 | 1599 | 24.737005% |
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 | 7627 | 6463 | 628 | 628 | 8.23% | 9.72% |  |
B | 7629 | 6465 | 414 | 414 | 5.43% | 6.40% |  |
C | 7629 | 6465 | 994 | 994 | 13.03% | 15.38% |  |
D | 7628 | 6464 | 1343 | 1343 | 17.61% | 20.78% |  |
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 | 1965945 | 11967.49 | 656 | 641 | 164.2 |
A | 4 | 95 | 403749 | 2454.68 | 656 | 641 | 164.2 |
A | 2 | 48 | 305241 | 1854.83 | 656 | 641 | 164.2 |
B | 4 | 206 | 753748 | 5260.85 | 676 | 652 | 143.2 |
B | 4 | 171 | 357688 | 2494.12 | 676 | 652 | 143.2 |
B | 8 | 128 | 322600 | 2249.01 | 676 | 652 | 143.2 |
C | 15 | 224 | 2513357 | 14112.74 | 644 | 636 | 178.0 |
C | 4 | 5 | 1205419 | 6766.68 | 644 | 636 | 178.0 |
C | 9 | 38 | 292109 | 1637.06 | 644 | 636 | 178.0 |
D | 12 | 17 | 1938244 | 10951.32 | 616 | 589 | 176.9 |
D | 6 | 42 | 1469578 | 8302.5 | 616 | 589 | 176.9 |
D | 8 | 176 | 911050 | 5145.78 | 616 | 589 | 176.9 |
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 |  |