Observation information
- date-obs: 2023-05-29
- time-obs: 15:57:26.464700000
- date-end: 2023-05-29
- time-end: 22:57:59.445900000
- obs_id: T05_100T01_9000005668
- exposure: 16703.9396502
- sourceid: NGC 4395
- observer: hengxiao
- ra_pnt: 186.4536
- dec_pnt: 33.54693
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1T05_100T01_9000005668_41462cztM0_level2.fits
| modeM0/AS1T05_100T01_9000005668_41462cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,046,957,760 | 295,266,240 |
Size | 998.5 MB
| 281.6 MB
|
Events in quadrant A | 9,080,846 | 2,001,471 |
Events in quadrant B | 7,994,819 | 2,070,649 |
Events in quadrant C | 9,454,564 | 1,915,425 |
Events in quadrant D | 10,869,234 | 1,747,076 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 77 | 0 |
B | 0 | 77 | 0 |
C | 0 | 77 | 0 |
D | 0 | 77 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 358 | 0 |
B | 0 | 358 | 0 |
C | 0 | 358 | 0 |
D | 0 | 358 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 37528 | 4 |
B | 0 | 35786 | 4 |
C | 0 | 39113 | 4 |
D | 0 | 44825 | 4 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 17494 | 31 | 0.177204% |
B | 17494 | 37 | 0.211501% |
C | 17494 | 503 | 2.875272% |
D | 17494 | 662 | 3.784155% |
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 | 25234 | 17498 | 11 | 11 | 0.04% | 0.06% |  |
B | 25234 | 17498 | 5 | 5 | 0.02% | 0.03% |  |
C | 25234 | 17498 | 495 | 495 | 1.96% | 2.83% |  |
D | 25234 | 17498 | 592 | 592 | 2.35% | 3.38% |  |
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 | 1434435 | 3646.16 | 1941 | 1905 | 392.9 |
A | 2 | 79 | 90566 | 225.67 | 1941 | 1905 | 392.9 |
A | 13 | 248 | 51976 | 127.44 | 1941 | 1905 | 392.9 |
B | 0 | 190 | 307228 | 824.7 | 1945 | 1892 | 370.2 |
B | 12 | 111 | 47628 | 123.53 | 1945 | 1892 | 370.2 |
B | 11 | 111 | 43717 | 112.97 | 1945 | 1892 | 370.2 |
C | 0 | 10 | 1374529 | 3168.53 | 1865 | 1878 | 433.2 |
C | 15 | 214 | 709113 | 1632.53 | 1865 | 1878 | 433.2 |
C | 9 | 54 | 83119 | 187.53 | 1865 | 1878 | 433.2 |
D | 13 | 249 | 1772203 | 3922.38 | 1855 | 1804 | 451.4 |
D | 1 | 47 | 887519 | 1962.33 | 1855 | 1804 | 451.4 |
D | 12 | 233 | 511730 | 1129.76 | 1855 | 1804 | 451.4 |
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 |  |