Observation information
- date-obs: 2025-05-10
- time-obs: 16:42:57.996200000
- date-end: 2025-05-10
- time-end: 18:47:05.979100000
- obs_id: C09_011T06_9000006468
- exposure: 4510.97971421
- 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_52017cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006468_52017cztM0_level2_quad_clean.evt
|
Size (bytes) | 737,853,120 | 85,737,600 |
Size | 703.7 MB
| 81.8 MB
|
Events in quadrant A | 4,594,984 | 612,568 |
Events in quadrant B | 6,192,867 | 608,299 |
Events in quadrant C | 9,020,371 | 440,847 |
Events in quadrant D | 7,020,097 | 495,406 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 18011 | 1 |
B | 0 | 22809 | 1 |
C | 0 | 31188 | 1 |
D | 0 | 25291 | 5 |
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 | 130 | 0 |
B | 0 | 130 | 0 |
C | 0 | 130 | 0 |
D | 0 | 130 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6274 | 177 | 2.821167% |
B | 6274 | 749 | 11.938157% |
C | 6274 | 2051 | 32.690469% |
D | 6273 | 989 | 15.765981% |
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 | 7449 | 6275 | 114 | 114 | 1.53% | 1.82% |  |
B | 7449 | 6275 | 300 | 300 | 4.03% | 4.78% |  |
C | 7449 | 6275 | 1986 | 1986 | 26.66% | 31.65% |  |
D | 7448 | 6274 | 995 | 995 | 13.36% | 15.86% |  |
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 | 95 | 479617 | 2849.29 | 670 | 655 | 168.1 |
A | 4 | 95 | 399720 | 2373.99 | 670 | 655 | 168.1 |
A | 3 | 14 | 395436 | 2348.5 | 670 | 655 | 168.1 |
B | 7 | 0 | 975632 | 7219.1 | 643 | 622 | 135.1 |
B | 12 | 18 | 789079 | 5837.84 | 643 | 622 | 135.1 |
B | 5 | 185 | 512141 | 3787.35 | 643 | 622 | 135.1 |
C | 15 | 224 | 5615671 | 35416.9 | 574 | 567 | 158.5 |
C | 4 | 5 | 419182 | 2640.38 | 574 | 567 | 158.5 |
C | 0 | 225 | 337590 | 2125.75 | 574 | 567 | 158.5 |
D | 12 | 17 | 1783519 | 10095.07 | 617 | 589 | 176.6 |
D | 8 | 176 | 1178035 | 6666.78 | 617 | 589 | 176.6 |
D | 13 | 170 | 450925 | 2549.83 | 617 | 589 | 176.6 |
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 |  |