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3216 Harrington (1980 RB)
Classification: Main-belt Asteroid          SPK-ID: 2003216
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3029820473251347 3.8893e-08  
a 2.395847925287808 6.701e-09 au
q 1.669949015804432 9.4485e-08 au
i 4.911442850266164 3.5524e-06 deg
node 107.8869127531611 4.4774e-05 deg
peri 224.7285987739251 4.4962e-05 deg
M 259.7954423402373 6.0596e-06 deg
tp 2459377.526844627227
(2021-Jun-12.02684463)
2.3672e-05 TDB
period 1354.525854269643
3.71
5.6827e-06
1.556e-08
d
yr
n .2657756578549113 1.115e-09 deg/d
Q 3.121746834771185 8.7312e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2074  
   data-arc span      24052 days (65.85 yr)  
   first obs. used      1954-08-04  
   last obs. used      2020-06-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46234  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:54:52  

Additional Information
 Earth MOID = .663814 au 
 Jupiter MOID = 2.26372 au 
 T_jup = 3.460 
[ 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 13.7   n/a MPO365284  
diameter diameter 4.029 km 0.159 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.433   0.070 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
SMASSII spectral type spec_B S   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)

3216 Harrington (1980 RB)          Discovered 1980-Sep-04 by Bowell, E. at Flagstaff (AM)
Discovered at the Anderson Mesa station, which is operated by the Lowell Observatory.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1980 RB = 1969 TH3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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