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JPL Small-Body Database Browser
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4485 Radonezhskij (1987 QQ11)
Classification: Main-belt Asteroid          SPK-ID: 2004485
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07316391283130419 3.768e-08  
a 3.008438923779108 1.6482e-08 au
q 2.788329760601431 1.1785e-07 au
i 10.13578421044 4.1643e-06 deg
node 316.2633704605769 2.6097e-05 deg
peri 142.3657785077168 4.4112e-05 deg
M 347.4713345555659 3.4501e-05 deg
tp 2459066.830387888524
(2020-Aug-05.33038789)
0.00018267 TDB
period 1905.944391745016
5.22
1.5662e-05
4.288e-08
d
yr
n .1888827405244476 1.5522e-09 deg/d
Q 3.228548086956785 1.7687e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2137  
   data-arc span      24565 days (67.26 yr)  
   first obs. used      1953-01-12  
   last obs. used      2020-04-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4042  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 02:08:30  

Additional Information
 Earth MOID = 1.81269 au 
 Jupiter MOID = 1.88207 au 
 T_jup = 3.223 
[ 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 12.0   n/a MPO502196  
diameter diameter 14.207 km 0.095 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
geometric albedo albedo 0.168   0.024 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

4485 Radonezhskij (1987 QQ11)          Discovered 1987-Aug-27 by Chernykh, N. S. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1987 QQ11 = 1969 EN = 1971 QJ2 = 1974 CP = 1984 BE1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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