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20401 (1998 OX5)
Classification: Main-belt Asteroid          SPK-ID: 2020401
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05297470027243378 4.2824e-08  
a 2.703044140289936 2.0352e-08 au
q 2.559851187134918 1.2205e-07 au
i 11.65603827524526 5.2745e-06 deg
node 283.9465743877389 2.5621e-05 deg
peri 326.8541169926865 6.3277e-05 deg
M 53.81081004609207 5.9129e-05 deg
tp 2458957.869628898049
(2020-Apr-18.36962890)		 0.00026645 TDB
period 1623.222797090114
4.44		 1.8333e-05
5.019e-08		 d
yr
n .2217810153020014 2.5048e-09 deg/d
Q 2.846237093444954 2.143e-08 au
   Orbit Determination Parameters
   # obs. used (total)      820  
   data-arc span      12784 days (35.00 yr)  
   first obs. used      1985-08-16  
   last obs. used      2020-08-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54915  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:19:37  

Additional Information
 Earth MOID = 1.54981 au 
 Jupiter MOID = 2.26191 au 
 T_jup = 3.335 
[ 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 14.48   n/a E2021B10  
diameter diameter 4.746 km 0.075 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.180   0.026 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20401 (1998 OX5)          Discovered 1998-Jul-21 by LINEAR at Socorro
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 OX5 = 1985 QS1 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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