Observation information
- date-obs: 2025-05-07
- time-obs: 07:21:39.681100000
- date-end: 2025-05-07
- time-end: 09:30:00.653200000
- obs_id: C09_011T06_9000006468
- exposure: 3662.06931782
- 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_51968cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006468_51968cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,293,030,720 | 75,790,080 |
Size | 1.2 GB
| 72.3 MB
|
Events in quadrant A | 5,592,332 | 671,756 |
Events in quadrant B | 13,335,168 | 367,265 |
Events in quadrant C | 12,559,193 | 413,498 |
Events in quadrant D | 15,784,007 | 305,590 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 21921 | 0 |
B | 0 | 44962 | 0 |
C | 0 | 42563 | 0 |
D | 0 | 52108 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 154 | 0 |
B | 0 | 154 | 0 |
C | 0 | 154 | 0 |
D | 0 | 154 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 7701 | 527 | 6.843267% |
B | 7702 | 4258 | 55.284342% |
C | 7702 | 3481 | 45.196053% |
D | 7702 | 4491 | 58.309530% |
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 | 7701 | 7701 | 324 | 324 | 4.21% | 4.21% |  |
B | 7702 | 7702 | 3362 | 3362 | 43.65% | 43.65% |  |
C | 7701 | 7701 | 2610 | 2610 | 33.89% | 33.89% |  |
D | 7702 | 7702 | 4155 | 4155 | 53.95% | 53.95% |  |
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 | 1230804 | 6255.83 | 789 | 768 | 196.6 |
A | 4 | 159 | 426466 | 2165.05 | 789 | 768 | 196.6 |
A | 8 | 62 | 170552 | 863.5 | 789 | 768 | 196.6 |
B | 12 | 32 | 9313995 | 80886.96 | 540 | 522 | 115.1 |
B | 4 | 249 | 743198 | 6450.1 | 540 | 522 | 115.1 |
B | 5 | 185 | 371352 | 3220.64 | 540 | 522 | 115.1 |
C | 15 | 224 | 7235644 | 42142.14 | 613 | 606 | 171.7 |
C | 15 | 132 | 1103708 | 6425.27 | 613 | 606 | 171.7 |
C | 0 | 193 | 954768 | 5557.74 | 613 | 606 | 171.7 |
D | 6 | 42 | 3189390 | 18604.1 | 605 | 578 | 171.4 |
D | 7 | 126 | 2757292 | 16083.16 | 605 | 578 | 171.4 |
D | 12 | 17 | 2264041 | 13205.45 | 605 | 578 | 171.4 |
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 |  |