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46533 (1981 EO23)
Classification: Main-belt Asteroid          SPK-ID: 2046533
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1066243088173027 3.2253e-08  
a 2.210297813111088 6.8635e-09 au
q 1.974626336507722 7.1108e-08 au
i .9754644295608806 3.6053e-06 deg
node 250.3544795599726 0.00027529 deg
peri 170.4702586260659 0.00027628 deg
M 137.8023754602822 2.347e-05 deg
tp 2458741.059981070671
(2019-Sep-14.55998107)
7.7712e-05 TDB
period 1200.258023579788
3.29
5.5906e-06
1.531e-08
d
yr
n .2999355079721062 1.3971e-09 deg/d
Q 2.445969289714453 7.5953e-09 au
  Orbit Determination Parameters
   # obs. used (total)      971  
   data-arc span      25671 days (70.28 yr)  
   first obs. used      1950-12-09  
   last obs. used      2021-03-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50591  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 05:39:10  

Additional Information
 Earth MOID = .986581 au 
 Jupiter MOID = 2.80546 au 
 T_jup = 3.650 
[ 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 15.96   n/a E2021B10  
diameter diameter 4.299 km 0.038 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.031   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46533 (1981 EO23)          Discovered 1981-Mar-03 by Bus, S. J. at Siding Spring
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1981 EO23 = 1999 VZ162 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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