Observation information
- date-obs: 2025-05-03
- time-obs: 09:45:42.442100000
- date-end: 2025-05-03
- time-end: 09:50:33.441800000
- obs_id: C09_011T05_9000006466
- exposure: 29.9880717993
- 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_011T05_9000006466_51907cztM0_level2.fits
| modeM0/AS1C09_011T05_9000006466_51907cztM0_level2_quad_clean.evt
|
Size (bytes) | 42,266,880 | 2,589,120 |
Size | 40.3 MB
| 2.5 MB
|
Events in quadrant A | 612,280 | 386 |
Events in quadrant B | 141,906 | 25,861 |
Events in quadrant C | 136,762 | 21,150 |
Events in quadrant D | 647,301 | 2,625 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 6 | 0 |
B | 0 | 6 | 0 |
C | 0 | 6 | 0 |
D | 0 | 6 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 2024 | 0 |
B | 0 | 641 | 0 |
C | 0 | 640 | 1 |
D | 0 | 2122 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 291 | 270 | 92.783505% |
B | 292 | 4 | 1.369863% |
C | 291 | 3 | 1.030928% |
D | 291 | 221 | 75.945017% |
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 | 290 | 290 | 172 | 172 | 59.31% | 59.31% |  |
B | 292 | 292 | 4 | 4 | 1.37% | 1.37% |  |
C | 291 | 291 | 3 | 3 | 1.03% | 1.03% |  |
D | 290 | 290 | 202 | 202 | 69.66% | 69.66% |  |
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 | 502635 | 117062.75 | 11 | 10 | 4.3 |
A | 12 | 80 | 34705 | 8080.56 | 11 | 10 | 4.3 |
A | 12 | 3 | 13267 | 3087.59 | 11 | 10 | 4.3 |
B | 0 | 153 | 14538 | 1796.61 | 28 | 27 | 8.1 |
B | 12 | 32 | 6364 | 784.58 | 28 | 27 | 8.1 |
B | 8 | 128 | 3633 | 446.46 | 28 | 27 | 8.1 |
C | 15 | 224 | 12326 | 1384.38 | 27 | 26 | 8.9 |
C | 13 | 3 | 10497 | 1178.53 | 27 | 26 | 8.9 |
C | 15 | 219 | 4259 | 476.43 | 27 | 26 | 8.9 |
D | 12 | 17 | 415800 | 66802.54 | 16 | 15 | 6.2 |
D | 6 | 42 | 123542 | 19846.6 | 16 | 15 | 6.2 |
D | 2 | 172 | 12224 | 1961.57 | 16 | 15 | 6.2 |
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 |  |