Observation information
- date-obs: 2020-02-07
- time-obs: 17:18:19.117500000
- date-end: 2020-02-08
- time-end: 18:48:30.130400000
- obs_id: A07_054T01_9000003486
- exposure: 73969.9399311
- sourceid: Holmber II X-1
- observer: rita
- ra_pnt: 124.8708
- dec_pnt: 70.70536
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A07_054T01_9000003486cztM0_level2_bc.evt
| modeM0/AS1A07_054T01_9000003486cztM0_level2_quad_clean.evt
|
Size (bytes) | 2,782,540,800 | 1,428,416,640 |
Size | 2.6 GB
| 1.3 GB
|
Events in quadrant A | 15,443,608 | 9,840,321 |
Events in quadrant B | 20,563,115 | 9,816,486 |
Events in quadrant C | 16,779,000 | 9,354,555 |
Events in quadrant D | 26,391,767 | 9,134,190 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 1528 | 0 |
B | 0 | 1530 | 0 |
C | 0 | 1530 | 0 |
D | 0 | 1530 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 124 | 0 |
B | 0 | 125 | 0 |
C | 0 | 125 | 0 |
D | 0 | 125 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 153147 | 0 |
B | 0 | 171431 | 0 |
C | 0 | 161081 | 0 |
D | 0 | 186729 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 74736 | 633 | 0.846981% |
B | 74730 | 2215 | 2.964004% |
C | 74731 | 1790 | 2.395258% |
D | 74721 | 1565 | 2.094458% |
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 | 91812 | 74753 | 0 | 0 | 0.00% | 0.00% |  |
B | 91812 | 74735 | 277 | 277 | 0.30% | 0.37% |  |
C | 91812 | 74743 | 243 | 243 | 0.26% | 0.33% |  |
D | 91812 | 74727 | 289 | 289 | 0.31% | 0.39% |  |
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 | 6 | 16 | 185703 | 212.19 | 3944 | 3874 | 856.9 |
A | 13 | 254 | 128146 | 145.02 | 3944 | 3874 | 856.9 |
A | 0 | 226 | 25046 | 24.71 | 3944 | 3874 | 856.9 |
B | 3 | 64 | 3489246 | 4712.2 | 3929 | 3839 | 739.7 |
B | 0 | 189 | 1003103 | 1350.98 | 3929 | 3839 | 739.7 |
B | 0 | 230 | 326259 | 435.9 | 3929 | 3839 | 739.7 |
C | 10 | 9 | 1593243 | 1794.98 | 3739 | 3724 | 885.5 |
C | 0 | 10 | 435905 | 488.04 | 3739 | 3724 | 885.5 |
C | 7 | 247 | 184018 | 203.6 | 3739 | 3724 | 885.5 |
D | 1 | 52 | 5463082 | 6117.56 | 3811 | 3682 | 892.4 |
D | 9 | 85 | 2324025 | 2600.07 | 3811 | 3682 | 892.4 |
D | 7 | 223 | 2032077 | 2272.93 | 3811 | 3682 | 892.4 |
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 |  |