Observation information
- date-obs: 2025-05-06
- time-obs: 22:26:30.741300000
- date-end: 2025-05-07
- time-end: 00:33:39.722900000
- obs_id: C09_011T06_9000006468
- exposure: 3832.49556231
- 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_51961cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006468_51961cztM0_level2_quad_clean.evt
|
Size (bytes) | 907,113,600 | 79,672,320 |
Size | 865.1 MB
| 76.0 MB
|
Events in quadrant A | 6,820,601 | 542,834 |
Events in quadrant B | 4,670,577 | 660,912 |
Events in quadrant C | 9,906,655 | 413,529 |
Events in quadrant D | 11,673,144 | 336,037 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 24842 | 3 |
B | 0 | 18500 | 3 |
C | 0 | 34026 | 3 |
D | 0 | 39127 | 3 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 10 | 0 |
B | 0 | 10 | 0 |
C | 0 | 10 | 0 |
D | 0 | 10 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 134 | 0 |
B | 0 | 134 | 0 |
C | 0 | 134 | 0 |
D | 0 | 134 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6574 | 1015 | 15.439611% |
B | 6575 | 297 | 4.517110% |
C | 6575 | 2478 | 37.688213% |
D | 6575 | 3039 | 46.220532% |
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 | 7628 | 6575 | 774 | 774 | 10.15% | 11.77% |  |
B | 7630 | 6576 | 183 | 183 | 2.40% | 2.78% |  |
C | 7630 | 6577 | 1876 | 1876 | 24.59% | 28.52% |  |
D | 7630 | 6577 | 2844 | 2844 | 37.27% | 43.24% |  |
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 | 1920538 | 11894.28 | 638 | 622 | 161.4 |
A | 7 | 64 | 795439 | 4924.06 | 638 | 622 | 161.4 |
A | 4 | 249 | 333120 | 2059.89 | 638 | 622 | 161.4 |
B | 10 | 44 | 409451 | 2882.67 | 671 | 649 | 141.8 |
B | 10 | 41 | 327537 | 2305.06 | 671 | 649 | 141.8 |
B | 5 | 185 | 320872 | 2258.06 | 671 | 649 | 141.8 |
C | 15 | 224 | 5791057 | 37190.68 | 552 | 544 | 155.7 |
C | 15 | 192 | 443082 | 2842.29 | 552 | 544 | 155.7 |
C | 12 | 252 | 296434 | 1900.41 | 552 | 544 | 155.7 |
D | 6 | 42 | 7159326 | 47572.73 | 517 | 491 | 150.5 |
D | 12 | 16 | 753236 | 5002.23 | 517 | 491 | 150.5 |
D | 0 | 5 | 433053 | 2874.51 | 517 | 491 | 150.5 |
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 |  |