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43812 (1991 RJ29)
Classification: Main-belt Asteroid          SPK-ID: 2043812
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2074062240090921 2.6343e-08  
a 3.154631508068112 1.5621e-08 au
q 2.500341298839597 8.6281e-08 au
i 12.54253633633734 1.238e-06 deg
node 292.231851567002 3.7166e-06 deg
peri 97.64835585282465 5.9211e-06 deg
M 66.61235671674019 4.9452e-06 deg
tp 2458821.818856214510
(2019-Dec-04.31885621)
2.6504e-05 TDB
period 2046.545393108975
5.60
1.5201e-05
4.162e-08
d
yr
n .1759061886495037 1.3066e-09 deg/d
Q 3.808921717296627 1.8861e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2021  
   data-arc span      10781 days (29.52 yr)  
   first obs. used      1991-09-13  
   last obs. used      2021-03-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42285  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 05:27:04  

Additional Information
 Earth MOID = 1.54316 au 
 Jupiter MOID = 1.8758 au 
 T_jup = 3.136 
[ 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 12.76   n/a MPCxxxxx  
diameter diameter 15.563 km 0.308 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.050   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

43812 (1991 RJ29)          Discovered 1991-Sep-13 by Holt, H. E. at Palomar
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 RJ29 = 1996 TL54 = 1999 CO80 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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