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30808 (1989 YA2)
Classification: Main-belt Asteroid          SPK-ID: 2030808
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .182682602535506 5.2799e-08  
a 2.52649772006886 9.7638e-09 au
q 2.064950541266658 1.3533e-07 au
i 5.333902199970892 4.4579e-06 deg
node 279.8657212647925 4.2254e-05 deg
peri 201.7496409866299 4.3556e-05 deg
M 247.5904453182128 1.4098e-05 deg
tp 2459658.512698868393
(2022-Mar-20.01269887)
5.9507e-05 TDB
period 1466.819898534268
4.02
8.5029e-06
2.328e-08
d
yr
n .2454289039572841 1.4227e-09 deg/d
Q 2.988044898871061 1.1547e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1520  
   data-arc span      14770 days (40.44 yr)  
   first obs. used      1980-08-06  
   last obs. used      2021-01-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49934  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 06:40:25  

Additional Information
 Earth MOID = 1.08187 au 
 Jupiter MOID = 2.10792 au 
 T_jup = 3.424 
[ 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 14.19   n/a E2021B10  
diameter diameter 3.856 km 0.034 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.287   0.022 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

30808 (1989 YA2)          Discovered 1989-Dec-30 by McNaught, R. H. at Siding Spring
Reference: 20011130/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1989 YA2 = 1980 PZ1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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