Observation information
- date-obs: 2025-05-06
- time-obs: 08:48:34.855800000
- date-end: 2025-05-06
- time-end: 14:13:24.813100000
- obs_id: C09_011T06_9000006468
- exposure: 11308.3281288
- 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_51954cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006468_51954cztM0_level2_quad_clean.evt
|
Size (bytes) | 2,550,775,680 | 198,017,280 |
Size | 2.4 GB
| 188.8 MB
|
Events in quadrant A | 28,102,285 | 973,923 |
Events in quadrant B | 10,776,117 | 1,770,315 |
Events in quadrant C | 25,116,640 | 1,048,999 |
Events in quadrant D | 29,017,817 | 938,027 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 96042 | 3 |
B | 0 | 44710 | 3 |
C | 0 | 87277 | 3 |
D | 0 | 98950 | 3 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 12 | 0 |
B | 0 | 12 | 0 |
C | 0 | 12 | 0 |
D | 0 | 12 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 372 | 0 |
B | 0 | 372 | 0 |
C | 0 | 372 | 0 |
D | 0 | 372 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 18310 | 7744 | 42.293829% |
B | 18311 | 535 | 2.921741% |
C | 18311 | 6301 | 34.411010% |
D | 18311 | 7120 | 38.883731% |
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 | 19490 | 18313 | 5961 | 5961 | 30.58% | 32.55% |  |
B | 19491 | 18315 | 149 | 149 | 0.76% | 0.81% |  |
C | 19491 | 18315 | 4731 | 4731 | 24.27% | 25.83% |  |
D | 19491 | 18315 | 6298 | 6298 | 32.31% | 34.39% |  |
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 | 11063857 | 29039.39 | 1529 | 1490 | 380.9 |
A | 7 | 64 | 6677748 | 17525.58 | 1529 | 1490 | 380.9 |
A | 4 | 249 | 1399193 | 3669.06 | 1529 | 1490 | 380.9 |
B | 4 | 81 | 315153 | 782.83 | 1903 | 1841 | 400.2 |
B | 0 | 216 | 287875 | 714.67 | 1903 | 1841 | 400.2 |
B | 4 | 171 | 257613 | 639.06 | 1903 | 1841 | 400.2 |
C | 15 | 224 | 12645466 | 29068.02 | 1563 | 1544 | 435.0 |
C | 14 | 245 | 3483284 | 8004.42 | 1563 | 1544 | 435.0 |
C | 4 | 5 | 742250 | 1702.86 | 1563 | 1544 | 435.0 |
D | 2 | 172 | 7144236 | 15962.71 | 1578 | 1509 | 447.5 |
D | 6 | 42 | 7047920 | 15747.46 | 1578 | 1509 | 447.5 |
D | 7 | 60 | 2723376 | 6082.88 | 1578 | 1509 | 447.5 |
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 |  |