Observation information
- date-obs: 2025-05-10
- time-obs: 04:42:06.959200000
- date-end: 2025-05-10
- time-end: 06:41:45.080400000
- obs_id: C09_011T06_9000006468
- exposure: 6152.62190205
- 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_52009cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006468_52009cztM0_level2_quad_clean.evt
|
Size (bytes) | 760,682,880 | 95,918,400 |
Size | 725.4 MB
| 91.5 MB
|
Events in quadrant A | 4,464,449 | 652,921 |
Events in quadrant B | 6,942,572 | 644,605 |
Events in quadrant C | 6,356,591 | 589,332 |
Events in quadrant D | 9,839,872 | 517,532 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 18327 | 0 |
B | 0 | 25663 | 0 |
C | 0 | 23898 | 0 |
D | 0 | 34321 | 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 | 7179 | 117 | 1.629753% |
B | 7180 | 855 | 11.908078% |
C | 7180 | 776 | 10.807799% |
D | 7179 | 1319 | 18.373032% |
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 | 7179 | 7179 | 102 | 102 | 1.42% | 1.42% |  |
B | 7180 | 7180 | 604 | 604 | 8.41% | 8.41% |  |
C | 7179 | 7179 | 708 | 708 | 9.86% | 9.86% |  |
D | 7179 | 7179 | 1487 | 1487 | 20.71% | 20.71% |  |
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 | 3 | 14 | 510331 | 2797.22 | 734 | 714 | 182.2 |
A | 4 | 3 | 254180 | 1391.24 | 734 | 714 | 182.2 |
A | 13 | 248 | 153752 | 840.0 | 734 | 714 | 182.2 |
B | 7 | 0 | 2373798 | 15856.51 | 703 | 678 | 149.7 |
B | 4 | 206 | 817463 | 5457.52 | 703 | 678 | 149.7 |
B | 5 | 185 | 346356 | 2309.72 | 703 | 678 | 149.7 |
C | 15 | 224 | 2617560 | 13784.0 | 690 | 688 | 189.8 |
C | 15 | 158 | 233166 | 1224.54 | 690 | 688 | 189.8 |
C | 15 | 174 | 79606 | 415.69 | 690 | 688 | 189.8 |
D | 6 | 42 | 1999160 | 10470.48 | 667 | 638 | 190.9 |
D | 12 | 6 | 912461 | 4777.14 | 667 | 638 | 190.9 |
D | 7 | 96 | 672113 | 3517.93 | 667 | 638 | 190.9 |
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 |  |