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1169 Alwine (1930 QH)
Classification: Main-belt Asteroid          SPK-ID: 2001169
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1554017666246922 2.8436e-08  
a 2.317931905236383 5.1276e-09 au
q 1.957721192246911 6.5029e-08 au
i 4.053825151471647 3.2259e-06 deg
node 255.0722786879982 4.6924e-05 deg
peri 177.2005954552048 4.8294e-05 deg
M 75.21538826915261 1.1189e-05 deg
tp 2458731.189281919053
(2019-Sep-04.68928192)
3.991e-05 TDB
period 1288.989670068655
3.53
4.2771e-06
1.171e-08
d
yr
n .2792885066183855 9.2673e-10 deg/d
Q 2.678142618225856 5.9244e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2897  
   data-arc span      32797 days (89.79 yr)  
   first obs. used      1930-08-30  
   last obs. used      2020-06-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43217  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:27:23  

Additional Information
 Earth MOID = .972448 au 
 Jupiter MOID = 2.58229 au 
 T_jup = 3.560 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.8   n/a MPO265962  
diameter diameter 8.100 km 0.180 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.170   0.024 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

1169 Alwine (1930 QH)          Discovered 1930-Aug-30 by Wolf, M. and Ferrero, M. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1930 QH = 1937 VH = 1955 SK1 = 1955 SR1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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