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30726 (1978 VK7)
Classification: Main-belt Asteroid          SPK-ID: 2030726
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1923697855804603 4.2819e-08  
a 2.450927214824904 8.4215e-09 au
q 1.979442872035723 1.0582e-07 au
i .9559436547661105 4.2813e-06 deg
node 223.7392026040609 0.0002118 deg
peri 145.0157436840759 0.00021198 deg
M 78.9106410768166 7.9032e-06 deg
tp 2459089.295821143672
(2020-Aug-27.79582114)
3.0806e-05 TDB
period 1401.503053062508
3.84
7.2235e-06
1.978e-08
d
yr
n .2568670822466941 1.3239e-09 deg/d
Q 2.922411557614085 1.0042e-08 au
  Orbit Determination Parameters
   # obs. used (total)      754  
   data-arc span      15440 days (42.27 yr)  
   first obs. used      1978-11-05  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54313  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 19:49:53  

Additional Information
 Earth MOID = .977937 au 
 Jupiter MOID = 2.54453 au 
 T_jup = 3.470 
[ 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 16.41   n/a MPCxxxxx  
diameter diameter 2.947 km 0.877 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  
geometric albedo albedo 0.039   0.023 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

30726 (1978 VK7)          Discovered 1978-Nov-07 by Helin, E. F., Bus, S. J. at Palomar
Reference: 20011130/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1978 VK7 = 1978 WV11 = 1993 RV17 = 1997 UU12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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