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4292 Aoba (1989 VO)
Classification: Main-belt Asteroid          SPK-ID: 2004292
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 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04786028120510261 3.2258e-08  
a 2.751568474769611 1.0594e-08 au
q 2.619877633812042 8.9994e-08 au
i 3.549477339534472 3.9138e-06 deg
node 321.4608243365833 5.0428e-05 deg
peri 145.8429560481808 6.436e-05 deg
M 203.5378718013588 4.1088e-05 deg
tp 2459725.062155716271
(2022-May-25.56215572)
0.00019154 TDB
period 1667.127879832347
4.56
9.6282e-06
2.636e-08
d
yr
n .2159402433100712 1.2471e-09 deg/d
Q 2.88325931572718 1.1101e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2673  
   data-arc span      23904 days (65.45 yr)  
   first obs. used      1955-05-21  
   last obs. used      2020-10-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41345  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:52:47  

Additional Information
 Earth MOID = 1.63754 au 
 Jupiter MOID = 2.16836 au 
 T_jup = 3.341 
[ 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 12.2   n/a MPO395038  
diameter diameter 24.695 km 0.162 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
geometric albedo albedo 0.038   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
SMASSII spectral type spec_B C   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

4292 Aoba (1989 VO)          Discovered 1989-Nov-04 by Koishikawa, M. at Ayashi
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1989 VO = 1938 QE = 1955 KK = 1957 WH2 = 1959 ES = 1979 QW2 = 1986 AB1 = 1988 PX3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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