Observation information
- date-obs: 2025-05-12
- time-obs: 22:27:22.549200000
- date-end: 2025-05-13
- time-end: 00:36:38.531500000
- obs_id: C09_011T06_9000006468
- exposure: 511.259049892
- 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_52050cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006468_52050cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,042,778,880 | 79,427,520 |
Size | 994.5 MB
| 75.7 MB
|
Events in quadrant A | 3,916,624 | 672,668 |
Events in quadrant B | 5,559,400 | 694,946 |
Events in quadrant C | 10,271,056 | 484,338 |
Events in quadrant D | 18,284,557 | 41,286 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 16961 | 2 |
B | 0 | 21627 | 2 |
C | 0 | 35693 | 2 |
D | 0 | 59418 | 2 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 4 | 0 |
B | 0 | 4 | 0 |
C | 0 | 4 | 0 |
D | 0 | 4 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 148 | 0 |
B | 0 | 148 | 0 |
C | 0 | 148 | 0 |
D | 0 | 148 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 7351 | 101 | 1.373963% |
B | 7351 | 521 | 7.087471% |
C | 7351 | 2164 | 29.438172% |
D | 7351 | 6895 | 93.796762% |
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 | 7756 | 7353 | 58 | 58 | 0.75% | 0.79% |  |
B | 7756 | 7353 | 263 | 263 | 3.39% | 3.58% |  |
C | 7756 | 7352 | 1783 | 1783 | 22.99% | 24.25% |  |
D | 7755 | 7350 | 6558 | 6558 | 84.56% | 89.22% |  |
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 | 5 | 17 | 148562 | 787.01 | 750 | 732 | 187.8 |
A | 3 | 79 | 102432 | 541.42 | 750 | 732 | 187.8 |
A | 4 | 3 | 88367 | 466.54 | 750 | 732 | 187.8 |
B | 5 | 172 | 1174374 | 7591.39 | 735 | 710 | 154.6 |
B | 0 | 171 | 218013 | 1405.54 | 735 | 710 | 154.6 |
B | 5 | 185 | 216672 | 1396.86 | 735 | 710 | 154.6 |
C | 15 | 224 | 3695947 | 21490.32 | 620 | 614 | 172.0 |
C | 9 | 38 | 2891930 | 16814.54 | 620 | 614 | 172.0 |
C | 4 | 5 | 809958 | 4706.76 | 620 | 614 | 172.0 |
D | 15 | 94 | 10873064 | 209591.0 | 167 | 159 | 51.9 |
D | 6 | 42 | 5397970 | 104050.63 | 167 | 159 | 51.9 |
D | 8 | 176 | 267107 | 5145.81 | 167 | 159 | 51.9 |
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 |  |