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1718 Namibia (1942 RX)
Classification: Main-belt Asteroid          SPK-ID: 2001718
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2769795481036453 2.6181e-08  
a 2.365761467278456 6.1653e-09 au
q 1.710493925150653 6.2055e-08 au
i 7.701736440932584 3.7683e-06 deg
node 202.8375794927673 2.4345e-05 deg
peri 133.6078274391425 2.5418e-05 deg
M 138.454257782709 8.2322e-06 deg
tp 2458489.337868146052
(2019-Jan-05.83786815)
2.941e-05 TDB
period 1329.091430010198
3.64
5.1956e-06
1.422e-08
d
yr
n .2708617269447278 1.0588e-09 deg/d
Q 3.021029009406261 7.873e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2028  
   data-arc span      28274 days (77.41 yr)  
   first obs. used      1942-09-07  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49212  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 16:02:43  

Additional Information
 Earth MOID = .712774 au 
 Jupiter MOID = 2.42577 au 
 T_jup = 3.484 
[ 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 13.8   n/a MPO452184  
diameter diameter 9.747 km 0.112 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 8.6028 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2011) http://www.asu.cas.cz/~ppravec/neo.htm]
[Ferrero, A. (2012) Minor Planet Bull. 39, 65-67.]
geometric albedo albedo 0.074   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

1718 Namibia           Discovered 1942 Sept. 14 by M. Vaisala.
Named for the African country, where the discoverer worked for many years, teaching the children of Finnish missionaries.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC 5281Last Updated: 2007-10-23

Alternate Designations
 1942 RX = 1953 TV1 = 1953 VB3 = 1964 VL 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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