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20014 (1991 RM29)
Classification: Main-belt Asteroid          SPK-ID: 2020014
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2403159067500753 4.794e-08  
a 2.603349130796189 1.5524e-08 au
q 1.977722923841883 1.2999e-07 au
i 12.28235491425079 4.5085e-06 deg
node 266.3520834473639 3.4925e-05 deg
peri 167.4654252162437 3.8837e-05 deg
M 172.3204334849352 1.8166e-05 deg
tp 2457866.102269094837
(2017-Apr-22.60226909)
7.3728e-05 TDB
period 1534.253238452837
4.20
1.3724e-05
3.757e-08
d
yr
n .2346418381120897 2.0989e-09 deg/d
Q 3.228975337750496 1.9255e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1010  
   data-arc span      23667 days (64.80 yr)  
   first obs. used      1953-08-19  
   last obs. used      2018-06-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50357  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-03 17:58:05  

Additional Information
 Earth MOID = .994593 au 
 Jupiter MOID = 2.06015 au 
 T_jup = 3.340 
[ 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 13.7   n/a MPO439232  
diameter diameter 4.441 km 0.262 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.357   0.061 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20014 (1991 RM29)          Discovered 1991-Sep-13 by Holt, H. E. at Palomar
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1991 RM29 = 1999 NG56 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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