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66184 (1998 XW2)
Classification: Main-belt Asteroid          SPK-ID: 2066184
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1931156838440494 4.5688e-08  
a 2.310618489995677 7.1979e-09 au
q 1.864401820197457 1.0647e-07 au
i 4.256815861889764 4.1062e-06 deg
node 107.2161389410664 6.4644e-05 deg
peri 273.8832195481191 6.5828e-05 deg
M 101.0762488328717 1.2526e-05 deg
tp 2458840.305225120115
(2019-Dec-22.80522512)
4.4278e-05 TDB
period 1282.894057249459
3.51
5.9946e-06
1.641e-08
d
yr
n .2806155332669047 1.3112e-09 deg/d
Q 2.756835159793897 8.5879e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1103  
   data-arc span      15869 days (43.45 yr)  
   first obs. used      1977-10-08  
   last obs. used      2021-03-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57024  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 07:01:02  

Additional Information
 Earth MOID = .871739 au 
 Jupiter MOID = 2.70914 au 
 T_jup = 3.556 
[ 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 15.56   n/a MPCxxxxx  
diameter diameter 2.165 km 0.278 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.286   0.050 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66184 (1998 XW2)          Discovered 1998-Dec-09 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 XW2 = 1977 TC6 = 1998 RP40 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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