Observation information
- date-obs: 2023-05-29
- time-obs: 18:58:30.456500000
- date-end: 2023-05-29
- time-end: 21:16:20.450300000
- obs_id: T05_100T01_9000005668
- exposure: 4693.7901426
- 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_41459cztM0_level2.fits
| modeM0/AS1T05_100T01_9000005668_41459cztM0_level2_quad_clean.evt
|
Size (bytes) | 329,106,240 | 87,249,600 |
Size | 313.9 MB
| 83.2 MB
|
Events in quadrant A | 2,732,058 | 601,094 |
Events in quadrant B | 2,401,984 | 621,836 |
Events in quadrant C | 3,014,176 | 556,575 |
Events in quadrant D | 3,642,021 | 509,971 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 32 | 0 |
B | 0 | 32 | 0 |
C | 0 | 32 | 0 |
D | 0 | 33 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 102 | 0 |
B | 0 | 102 | 0 |
C | 0 | 102 | 0 |
D | 0 | 102 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 11091 | 3 |
B | 0 | 10474 | 2 |
C | 0 | 11988 | 2 |
D | 0 | 14271 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5031 | 11 | 0.218644% |
B | 5031 | 16 | 0.318028% |
C | 5031 | 258 | 5.128205% |
D | 5031 | 329 | 6.539455% |
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 | 7034 | 5032 | 5 | 5 | 0.07% | 0.10% |  |
B | 7034 | 5032 | 4 | 4 | 0.06% | 0.08% |  |
C | 7034 | 5032 | 254 | 254 | 3.61% | 5.05% |  |
D | 7034 | 5032 | 292 | 292 | 4.15% | 5.80% |  |
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 | 490257 | 4229.72 | 571 | 561 | 115.8 |
A | 13 | 248 | 22100 | 186.04 | 571 | 561 | 115.8 |
A | 13 | 254 | 8205 | 66.02 | 571 | 561 | 115.8 |
B | 0 | 190 | 136242 | 1233.43 | 572 | 557 | 110.0 |
B | 12 | 111 | 13828 | 120.64 | 572 | 557 | 110.0 |
B | 11 | 111 | 12482 | 108.4 | 572 | 557 | 110.0 |
C | 0 | 10 | 706096 | 5590.55 | 539 | 544 | 126.2 |
C | 15 | 214 | 204385 | 1615.17 | 539 | 544 | 126.2 |
C | 12 | 249 | 4485 | 31.23 | 539 | 544 | 126.2 |
D | 13 | 249 | 758091 | 5749.72 | 538 | 523 | 131.8 |
D | 12 | 233 | 296620 | 2247.29 | 538 | 523 | 131.8 |
D | 2 | 249 | 243057 | 1840.76 | 538 | 523 | 131.8 |
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 |  |