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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04838782244339435 1.5483e-08  
a 2.749476894022136 1.0245e-08 au
q 2.616435694261977 4.6191e-08 au
i 3.550496877586056 1.0482e-06 deg
node 321.4609531451648 1.3463e-05 deg
peri 146.5475286004909 3.0477e-05 deg
M 246.0354829828037 2.5158e-05 deg
tp 2459727.657866781562
(2022-May-28.15786678)		 0.00011723 TDB
period 1665.227362063285
4.56		 9.307e-06
2.548e-08		 d
yr
n .2161866951032712 1.2083e-09 deg/d
Q 2.882518093782295 1.074e-08 au
   Orbit Determination Parameters
   # obs. used (total)      2873  
   data-arc span      23985 days (65.67 yr)  
   first obs. used      1955-05-21  
   last obs. used      2021-01-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41055  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 16:09:58  

Additional Information
 Earth MOID = 1.63391 au 
 Jupiter MOID = 2.16759 au 
 T_jup = 3.342 
[ 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 12.26   n/a E2020-QM5  
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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)		 Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2008-Oct-09 23:50 < 00:01 David 0.0249167228835145 0.0249156871185971 0.024917758654176 6.56665934738379 6.56665925505277 2454749.492801933 0.323524238975118 55.8660108674561 24.1315629896371 25.0481331940809 89020.2502445587 T 40 CATAB v2.0f-lin.ifort 2021-Apr-12 16:10:55 2021-Apr-12 16:10
2165-Feb-07 18:38 < 00:01 Thisb 0.0485471642895951 0.0485460979666121 0.0485482321478475 3.90502792763503 3.90502789166948 2511848.276700790 0.561472471277008 864.651351683224 46.1005165851142 88.2454837715813 157370.451949062 T 40 CATAB v2.0f-lin.ifort 2021-Apr-12 16:10:55 2021-Apr-12 16:10

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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