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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2403784593273239 3.2998e-08  
a 2.599566205676644 1.168e-08 au
q 1.974686486236715 9.1145e-08 au
i 12.28015665872826 1.9396e-06 deg
node 266.3253243340496 5.0196e-06 deg
peri 168.0885287282673 6.854e-06 deg
M 312.4299414763791 8.3824e-06 deg
tp 2459402.793037526078
(2021-Jul-07.29303753)
3.6615e-05 TDB
period 1530.910319843867
4.19
1.0318e-05
2.825e-08
d
yr
n .2351542055296325 1.5848e-09 deg/d
Q 3.224445925116573 1.4488e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1738  
   data-arc span      24646 days (67.48 yr)  
   first obs. used      1953-08-19  
   last obs. used      2021-02-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44095  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:11:23  

Additional Information
 Earth MOID = .991163 au 
 Jupiter MOID = 2.0627 au 
 T_jup = 3.342 
[ 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 13.69   n/a E2021B10  
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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