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3819 Robinson (1983 AR)
Classification: Main-belt Asteroid          SPK-ID: 2003819
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1389994922653801 2.9272e-08  
a 2.77148974326847 1.1689e-08 au
q 2.386254076135444 8.0519e-08 au
i 11.11191980393431 7.9051e-07 deg
node 46.19431839389948 3.8062e-06 deg
peri 352.3613071109392 6.0197e-06 deg
M 136.40877403665 5.1561e-06 deg
tp 2458561.930538362052
(2019-Mar-19.43053836)
2.1104e-05 TDB
period 1685.26553964847
4.61
1.0661e-05
2.919e-08
d
yr
n .2136161877938194 1.3514e-09 deg/d
Q 3.156725410401496 1.3313e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3527  
   data-arc span      25582 days (70.04 yr)  
   first obs. used      1951-03-09  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .35043  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 21:13:37  

Additional Information
 Earth MOID = 1.39374 au 
 Jupiter MOID = 2.26206 au 
 T_jup = 3.296 
[ 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 12.10   n/a E2021B10  
diameter diameter 10.307 km 0.164 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.700 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Ferrero, A.; Bonamico, R. (2020) Minor Planet Bull. 47, 147-148.]
geometric albedo albedo 0.358   0.298 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
SMASSII spectral type spec_B Sr   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)

3819 Robinson (1983 AR)          Discovered 1983-Jan-12 by Skiff, B. A. at Flagstaff (AM)
Discovered at the Anderson Mesa station, which is operated by the Lowell Observatory.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1983 AR = 1951 EB1 = 1972 TW = 1986 VF1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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