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66986 (1999 XH95)
Classification: Main-belt Asteroid          SPK-ID: 2066986
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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1041895032209042 4.3922e-08  
a 2.966649754804411 1.9099e-08 au
q 2.657555990620922 1.2945e-07 au
i 9.266819382313454 4.2536e-06 deg
node 299.8449106750234 2.7079e-05 deg
peri 108.9058064488431 3.574e-05 deg
M 74.67641515535026 2.1703e-05 deg
tp 2458813.350411664990
(2019-Nov-25.85041167)
0.00011249 TDB
period 1866.37041307704
5.11
1.8023e-05
4.934e-08
d
yr
n .1928877555482016 1.8627e-09 deg/d
Q 3.2757435189879 2.1089e-08 au
  Orbit Determination Parameters
   # obs. used (total)      923  
   data-arc span      8251 days (22.59 yr)  
   first obs. used      1998-08-17  
   last obs. used      2021-03-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .468  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 07:02:56  

Additional Information
 Earth MOID = 1.68555 au 
 Jupiter MOID = 2.07276 au 
 T_jup = 3.236 
[ 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 14.69   n/a MPCxxxxx  
diameter diameter 4.458 km 0.207 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.186   0.052 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66986 (1999 XH95)          Discovered 1999-Dec-07 by Kobayashi, T. at Oizumi
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 XH95 = 1998 SZ67 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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