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7078 Unojonsson (1985 UH3)
Classification: Main-belt Asteroid          SPK-ID: 2007078
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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2249341396223918 4.2621e-08  
a 2.434545448474043 6.1552e-09 au
q 1.886933062649925 1.0431e-07 au
i 3.079541583517764 4.4596e-06 deg
node 147.2424337631194 5.6988e-05 deg
peri 191.3698845758591 5.7471e-05 deg
M 70.00081367747889 6.1096e-06 deg
tp 2458730.710002590545
(2019-Sep-04.21000259)
2.3633e-05 TDB
period 1387.475287285856
3.80
5.2619e-06
1.441e-08
d
yr
n .2594640807651594 9.84e-10 deg/d
Q 2.982157834298162 7.5397e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1987  
   data-arc span      23951 days (65.57 yr)  
   first obs. used      1954-07-01  
   last obs. used      2020-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53478  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 18:19:45  

Additional Information
 Earth MOID = .878039 au 
 Jupiter MOID = 2.41243 au 
 T_jup = 3.468 
[ 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 14.1   n/a MPO502220  
diameter diameter 8.988 km 0.153 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.095   0.019 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

7078 Unojönsson           Discovered 1985 Oct. 17 by C.-I. Lagerkvist at Kvistaberg.
Named in honor of Uno Jönsson (b. 1937), a friend of the discoverer, to celebrate his 60th birthday. Long interested in astronomy, Jönsson has written several books for a general audience. He has also edited textbooks on astronomy, in one case with the discoverer as a contributing author.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19980211/MPCPages.arcLast Updated: 2009-11-17

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Alternate Designations
 1985 UH3 = 1989 WP1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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