Observation information
- date-obs: 2025-05-07
- time-obs: 17:33:31.583700000
- date-end: 2025-05-07
- time-end: 19:39:09.561300000
- obs_id: C09_011T06_9000006468
- exposure: 4200.71469223
- 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_51973cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006468_51973cztM0_level2_quad_clean.evt
|
Size (bytes) | 819,815,040 | 83,931,840 |
Size | 781.8 MB
| 80.0 MB
|
Events in quadrant A | 6,292,641 | 576,713 |
Events in quadrant B | 4,936,922 | 637,313 |
Events in quadrant C | 9,366,566 | 404,265 |
Events in quadrant D | 9,257,953 | 476,590 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 23213 | 3 |
B | 0 | 19175 | 2 |
C | 0 | 32274 | 2 |
D | 0 | 31922 | 2 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 11 | 0 |
B | 0 | 11 | 0 |
C | 0 | 11 | 0 |
D | 0 | 11 | 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 | 6382 | 681 | 10.670636% |
B | 6383 | 506 | 7.927307% |
C | 6383 | 2477 | 38.806204% |
D | 6383 | 1442 | 22.591258% |
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 | 7536 | 6382 | 531 | 531 | 7.05% | 8.32% |  |
B | 7538 | 6384 | 306 | 306 | 4.06% | 4.79% |  |
C | 7538 | 6383 | 1873 | 1873 | 24.85% | 29.34% |  |
D | 7538 | 6384 | 1434 | 1434 | 19.02% | 22.46% |  |
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 | 1521755 | 9222.26 | 657 | 642 | 164.9 |
A | 4 | 249 | 548940 | 3324.24 | 657 | 642 | 164.9 |
A | 3 | 14 | 537439 | 3254.51 | 657 | 642 | 164.9 |
B | 4 | 249 | 367291 | 2643.3 | 664 | 643 | 138.7 |
B | 4 | 170 | 325359 | 2341.0 | 664 | 643 | 138.7 |
B | 4 | 81 | 189314 | 1360.2 | 664 | 643 | 138.7 |
C | 15 | 224 | 5733031 | 37823.45 | 546 | 542 | 151.6 |
C | 15 | 147 | 605274 | 3990.07 | 546 | 542 | 151.6 |
C | 13 | 3 | 273345 | 1799.98 | 546 | 542 | 151.6 |
D | 2 | 172 | 2857504 | 15918.43 | 624 | 596 | 179.5 |
D | 6 | 42 | 2035667 | 11339.23 | 624 | 596 | 179.5 |
D | 10 | 199 | 601534 | 3348.37 | 624 | 596 | 179.5 |
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 |  |