Observation information
- date-obs: 2025-02-12
- time-obs: 02:52:56.593500000
- date-end: 2025-02-12
- time-end: 04:55:00.574000000
- obs_id: C09_003T01_9000006448
- exposure: 5628.67327166
- sourceid: Cas A
- observer: chandrasunil
- ra_pnt: 350.85
- dec_pnt: 58.815
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1C09_003T01_9000006448_50721cztM0_level2.fits
| modeM0/AS1C09_003T01_9000006448_50721cztM0_level2_quad_clean.evt
|
Size (bytes) | 705,504,960 | 97,963,200 |
Size | 672.8 MB
| 93.4 MB
|
Events in quadrant A | 4,041,045 | 675,404 |
Events in quadrant B | 4,522,346 | 734,329 |
Events in quadrant C | 7,902,612 | 562,715 |
Events in quadrant D | 9,082,227 | 483,653 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 146 | 0 |
B | 0 | 146 | 0 |
C | 0 | 146 | 0 |
D | 0 | 146 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 16818 | 0 |
B | 0 | 18572 | 0 |
C | 0 | 28534 | 0 |
D | 0 | 32042 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 7324 | 57 | 0.778263% |
B | 7324 | 210 | 2.867286% |
C | 7325 | 1335 | 18.225256% |
D | 7325 | 1875 | 25.597270% |
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 | 7324 | 7324 | 40 | 40 | 0.55% | 0.55% |  |
B | 7324 | 7324 | 111 | 111 | 1.52% | 1.52% |  |
C | 7325 | 7325 | 1042 | 1042 | 14.23% | 14.23% |  |
D | 7325 | 7325 | 1696 | 1696 | 23.15% | 23.15% |  |
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 | 3 | 236111 | 1234.52 | 767 | 748 | 190.7 |
A | 12 | 80 | 157534 | 822.37 | 767 | 748 | 190.7 |
A | 9 | 191 | 88431 | 459.91 | 767 | 748 | 190.7 |
B | 0 | 229 | 276247 | 1688.9 | 763 | 735 | 163.1 |
B | 0 | 213 | 268424 | 1640.94 | 763 | 735 | 163.1 |
B | 3 | 249 | 193842 | 1183.75 | 763 | 735 | 163.1 |
C | 5 | 10 | 1942191 | 10163.97 | 691 | 685 | 191.0 |
C | 0 | 224 | 1095684 | 5732.42 | 691 | 685 | 191.0 |
C | 0 | 209 | 582317 | 3044.9 | 691 | 685 | 191.0 |
D | 2 | 249 | 3504243 | 19288.16 | 650 | 627 | 181.6 |
D | 8 | 176 | 1431946 | 7879.72 | 650 | 627 | 181.6 |
D | 7 | 60 | 333691 | 1833.59 | 650 | 627 | 181.6 |
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 |  |