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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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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1564797158840371 1.4356e-08  
a 3.125442530870809 1.1688e-08 au
q 2.636374171628259 4.7409e-08 au
i 1.030094767526772 1.2872e-06 deg
node 163.0284179100147 4.7075e-05 deg
peri 235.0694117617285 4.5269e-05 deg
M 10.50465821342433 6.6043e-06 deg
tp 2459337.609515253550
(2021-May-03.10951525)
3.7047e-05 TDB
period 2018.206978084148
5.53
1.1321e-05
3.1e-08
d
yr
n .1783761546309499 1.0006e-09 deg/d
Q 3.614510890113359 1.3517e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3167  
   data-arc span      25101 days (68.72 yr)  
   first obs. used      1952-05-24  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46365  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 12:55:11  

Additional Information
 Earth MOID = 1.64344 au 
 Jupiter MOID = 1.80608 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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