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66479 Healy (1999 RQ33)
Classification: Main-belt Asteroid          SPK-ID: 2066479
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2206334656039994 3.4935e-08  
a 2.694618490274823 1.2346e-08 au
q 2.100095474284872 9.5025e-08 au
i 8.03993055758807 4.1155e-06 deg
node 160.8639533544166 3.245e-05 deg
peri 284.7576972024642 3.409e-05 deg
M 227.9660392182829 1.015e-05 deg
tp 2459793.053415785773
(2022-Aug-01.55341579)
4.6623e-05 TDB
period 1615.639100879088
4.42
1.1104e-05
3.04e-08
d
yr
n .2228220397761603 1.5314e-09 deg/d
Q 3.289141506264774 1.507e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1149  
   data-arc span      7640 days (20.92 yr)  
   first obs. used      1999-08-12  
   last obs. used      2020-07-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47553  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:22:32  

Additional Information
 Earth MOID = 1.13291 au 
 Jupiter MOID = 2.00417 au 
 T_jup = 3.321 
[ 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 14.57   n/a E2021B10  
diameter diameter 5.618 km 0.276 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.107   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66479 Healy           Discovered 1999 Sept. 4 by M. Collins and M. White at Anza.
David Healy (b. 1936) established Junk Bond Observatory in Arizona primarily for visual work and recoveries of minor planets. While engaged in this valuable work, JBO has been the site of over 60 new discoveries. A pioneering astrophotographer, Healy was an original contributor to Burnham's Celestial Handbook.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20060219/MPCPages.arcLast Updated: 2010-06-03

Alternate Designations
 1999 RQ33 = 2001 AS17 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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