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66953 (1999 XM19)
Classification: Main-belt Asteroid          SPK-ID: 2066953
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1924884211652784 4.5896e-08  
a 2.643055040350095 1.5065e-08 au
q 2.134297548580174 1.2351e-07 au
i 11.74452675206734 5.1081e-06 deg
node 202.4286118884034 1.7177e-05 deg
peri 168.8032201608679 1.9374e-05 deg
M 332.6785047848722 1.1353e-05 deg
tp 2459319.613147300549
(2021-Apr-15.11314730)
5.0165e-05 TDB
period 1569.487053712003
4.30
1.3419e-05
3.674e-08
d
yr
n .22937430362905 1.9611e-09 deg/d
Q 3.151812532120016 1.7965e-08 au
  Orbit Determination Parameters
   # obs. used (total)      902  
   data-arc span      8281 days (22.67 yr)  
   first obs. used      1998-04-21  
   last obs. used      2020-12-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51752  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:26:13  

Additional Information
 Earth MOID = 1.13475 au 
 Jupiter MOID = 2.32177 au 
 T_jup = 3.338 
[ 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 14.88   n/a E2021B10  
diameter diameter 4.950 km 0.946 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  
geometric albedo albedo 0.027   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66953 (1999 XM19)          Discovered 1999-Dec-03 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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