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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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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0483878555547237 3.2162e-08  
a 2.749476890004837 1.0427e-08 au
q 2.616435599400232 8.9851e-08 au
i 3.55049442817012 3.8958e-06 deg
node 321.460864870451 4.9448e-05 deg
peri 146.5476633124246 6.3223e-05 deg
M 246.0354377309466 4.058e-05 deg
tp 2459727.658074944623
(2022-May-28.15807494)		 0.00018867 TDB
period 1665.227358413654
4.56		 9.4725e-06
2.593e-08		 d
yr
n .2161866955770814 1.2298e-09 deg/d
Q 2.882518180609441 1.0931e-08 au
   Orbit Determination Parameters
   # obs. used (total)      2857  
   data-arc span      23985 days (65.67 yr)  
   first obs. used      1955-05-21  
   last obs. used      2021-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40868  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 01:16:57  

Additional Information
 Earth MOID = 1.63391 au 
 Jupiter MOID = 2.16759 au 
 T_jup = 3.342 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457352.5 (2015-Nov-26.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0483420794924929 3.1504e-08  
q 2.617440994703 8.8165e-08 au
tp 2458044.894414284492
(2017-Oct-18.39441428)		 0.00018842 TDB
node 321.6214023166289 4.9586e-05 deg
peri 142.9341292213754 6.3695e-05 deg
i 3.54532609299316 3.8899e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      2857  
   data-arc span      23985 days (65.67 yr)  
   first obs. used      1955-05-21  
   last obs. used      2021-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40868  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 01:16:57  

Additional Information
 Jupiter MOID = 2.16759 au 
 T_jup = 3.342 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.925028822285192E-16 -2.760017317309006E-15 1.138745695978908E-12 -9.635077838225566E-16 2.628732996532694E-13 2.392370749464028E-16
q -2.760017317309006E-15 7.77300733577767E-15 -2.547766557979812E-12 2.636392333553698E-15 -6.088957586054855E-13 -5.972079646843952E-16
tp 1.138745695978908E-12 -2.547766557979812E-12 3.550385086836894E-8 -2.401335959160427E-11 7.539557838324662E-9 -2.694484670813623E-13
node -9.635077838225566E-16 2.636392333553698E-15 -2.401335959160427E-11 2.45879138063762E-9 -2.458767023897913E-9 1.590781508015523E-11
peri 2.628732996532694E-13 -6.088957586054855E-13 7.539557838324662E-9 -2.458767023897913E-9 4.057013820535096E-9 -1.594695753608334E-11
i 2.392370749464028E-16 -5.972079646843952E-16 -2.694484670813623E-13 1.590781508015523E-11 -1.594695753608334E-11 1.513160260863358E-11

[ 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

[ 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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