Observation information
- date-obs: 2024-08-23
- time-obs: 14:37:59.776400000
- date-end: 2024-08-23
- time-end: 16:43:13.766000000
- obs_id: C09_009T01_9000006406
- exposure: 489.058483005
- sourceid: Crab
- observer: arrao
- ra_pnt: 83.63321
- dec_pnt: 22.01446
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1C09_009T01_9000006406_48156cztM0_level2.fits
| modeM0/AS1C09_009T01_9000006406_48156cztM0_level2_quad_clean.evt
|
Size (bytes) | 428,443,200 | 90,550,080 |
Size | 408.6 MB
| 86.4 MB
|
Events in quadrant A | 7,353,207 | 785,315 |
Events in quadrant B | 1,156,735 | 46,850 |
Events in quadrant C | 3,195,248 | 765,988 |
Events in quadrant D | 3,654,378 | 698,159 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 128 | 0 |
B | 0 | 128 | 0 |
C | 0 | 128 | 0 |
D | 0 | 128 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 26134 | 1 |
B | 0 | 6979 | 1 |
C | 0 | 13583 | 2 |
D | 0 | 14974 | 1 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 12 | 0 |
B | 0 | 12 | 0 |
C | 0 | 12 | 0 |
D | 0 | 12 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6344 | 306 | 4.823455% |
B | 6344 | 6344 | 100.000000% |
C | 6343 | 98 | 1.545010% |
D | 6344 | 143 | 2.254098% |
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 | 7514 | 6345 | 53 | 53 | 0.71% | 0.84% |  |
B | 7513 | 6324 | 6 | 6 | 0.08% | 0.09% |  |
C | 7513 | 6344 | 28 | 28 | 0.37% | 0.44% |  |
D | 7514 | 6345 | 69 | 69 | 0.92% | 1.09% |  |
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 | 10 | 83 | 4323009 | 27107.87 | 771 | 757 | 159.4 |
A | 13 | 248 | 18074 | 108.61 | 771 | 757 | 159.4 |
A | 0 | 243 | 17333 | 103.96 | 771 | 757 | 159.4 |
B | 2 | 177 | 872281 | 75818.66 | 48 | 47 | 11.5 |
B | 5 | 32 | 44029 | 3823.12 | 48 | 47 | 11.5 |
B | 0 | 200 | 10771 | 932.18 | 48 | 47 | 11.5 |
C | 14 | 254 | 125520 | 695.85 | 761 | 768 | 179.3 |
C | 12 | 2 | 64614 | 356.12 | 761 | 768 | 179.3 |
C | 1 | 3 | 13192 | 69.3 | 761 | 768 | 179.3 |
D | 7 | 67 | 319260 | 1651.45 | 761 | 737 | 192.9 |
D | 12 | 2 | 68390 | 350.76 | 761 | 737 | 192.9 |
D | 12 | 233 | 56826 | 290.8 | 761 | 737 | 192.9 |
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 |  |