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20852 Allilandstrom (2000 VY12)
Classification: Main-belt Asteroid          SPK-ID: 2020852
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0828867337888106 4.3997e-08  
a 2.525863816795485 1.2067e-08 au
q 2.316503215025968 1.0626e-07 au
i 2.504979371778204 3.6143e-06 deg
node 104.89450341 0.00010835 deg
peri 159.2646032024955 0.00012868 deg
M 141.7690986199963 7.4197e-05 deg
tp 2458623.079229825319
(2019-May-19.57922983)
0.0003017 TDB
period 1466.267891143701
4.01
1.0507e-05
2.877e-08
d
yr
n .2455213008307759 1.7594e-09 deg/d
Q 2.735224418565001 1.3067e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1058  
   data-arc span      15179 days (41.56 yr)  
   first obs. used      1979-07-24  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53513  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:32:51  

Additional Information
 Earth MOID = 1.29917 au 
 Jupiter MOID = 2.30703 au 
 T_jup = 3.447 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.2   n/a MPO435893  
diameter diameter 2.480 km 0.495 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.287   0.164 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20852 Allilandstrom           Discovered 2000 Nov. 1 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Allison Landstrom (b. 1986) was awarded second place in the 2004 Intel International Science and Engineering Fair for her medicine and health project. She attends the Southridge High School, Beaverton, Oregon, U.S.A.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20041226/MPCPages.arcLast Updated: 2004-12-25

Alternate Designations
 2000 VY12 = 1979 OE4 = 1998 BH34 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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