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1898 Cowell (1971 UF1)
Classification: Main-belt Asteroid          SPK-ID: 2001898
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1564759175483173 2.8796e-08  
a 3.125497130351581 1.1879e-08 au
q 2.636432099085185 9.1793e-08 au
i 1.03009484725095 3.9374e-06 deg
node 163.029040503973 0.00015498 deg
peri 235.0207886774421 0.00015546 deg
M 335.5781946107074 1.1393e-05 deg
tp 2459337.415415586696
(2021-May-02.91541559)
6.3827e-05 TDB
period 2018.259863491536
5.53
1.1506e-05
3.15e-08
d
yr
n .1783714805571219 1.0169e-09 deg/d
Q 3.614562161617977 1.3738e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3121  
   data-arc span      25073 days (68.65 yr)  
   first obs. used      1952-05-24  
   last obs. used      2021-01-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46554  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 00:58:58  

Additional Information
 Earth MOID = 1.64306 au 
 Jupiter MOID = 1.80512 au 
 T_jup = 3.196 
[ 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 12.43   n/a E2021B10  
diameter diameter 14.975 km 0.286 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.095   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

1898 Cowell (1971 UF1)          Discovered 1971-Oct-26 by Kohoutek, L. at Bergedorf
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1971 UF1 = 1960 VK 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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