Observation information
- date-obs: 2020-04-30
- time-obs: 20:47:11.928200000
- date-end: 2020-05-01
- time-end: 14:18:36.924000000
- obs_id: A07_045T01_9000003628
- exposure: 29978.1961673
- sourceid: NGC 4438
- observer: Rahnapt
- ra_pnt: 186.94
- dec_pnt: 13.00883
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A07_045T01_9000003628cztM0_level2_bc.evt
| modeM0/AS1A07_045T01_9000003628cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,885,394,880 | 669,312,000 |
Size | 1.8 GB
| 638.3 MB
|
Events in quadrant A | 11,594,360 | 4,282,535 |
Events in quadrant B | 14,268,231 | 4,317,713 |
Events in quadrant C | 12,788,662 | 4,051,194 |
Events in quadrant D | 14,839,036 | 3,990,018 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 103 | 0 |
B | 0 | 103 | 0 |
C | 0 | 103 | 0 |
D | 0 | 103 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 110459 | 0 |
B | 0 | 121326 | 0 |
C | 0 | 117605 | 0 |
D | 0 | 119363 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 1076 | 0 |
B | 0 | 1076 | 0 |
C | 0 | 1076 | 0 |
D | 0 | 1076 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 52941 | 562 | 1.061559% |
B | 52941 | 1360 | 2.568897% |
C | 52941 | 1111 | 2.098563% |
D | 52940 | 488 | 0.921798% |
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 | 63086 | 52944 | 0 | 0 | 0.00% | 0.00% |  |
B | 63086 | 52942 | 105 | 105 | 0.17% | 0.20% |  |
C | 63086 | 52941 | 2 | 2 | 0.00% | 0.00% |  |
D | 63086 | 52941 | 45 | 45 | 0.07% | 0.09% |  |
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 | 13 | 254 | 71382 | 106.86 | 3002 | 2954 | 640.3 |
A | 0 | 226 | 19068 | 25.17 | 3002 | 2954 | 640.3 |
A | 12 | 194 | 18137 | 23.71 | 3002 | 2954 | 640.3 |
B | 3 | 64 | 2366942 | 4242.92 | 3010 | 2940 | 557.2 |
B | 0 | 189 | 155327 | 273.5 | 3010 | 2940 | 557.2 |
B | 15 | 32 | 78329 | 135.31 | 3010 | 2940 | 557.2 |
C | 7 | 247 | 1500289 | 2280.67 | 2835 | 2822 | 656.6 |
C | 2 | 16 | 313528 | 473.21 | 2835 | 2822 | 656.6 |
C | 5 | 112 | 72377 | 105.93 | 2835 | 2822 | 656.6 |
D | 8 | 195 | 3163631 | 4755.49 | 2899 | 2797 | 664.7 |
D | 1 | 52 | 327439 | 488.43 | 2899 | 2797 | 664.7 |
D | 2 | 234 | 198852 | 294.97 | 2899 | 2797 | 664.7 |
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 |  |