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JPL Small-Body Database Browser
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19735 (1999 XN212)
Classification: Main-belt Asteroid          SPK-ID: 2019735
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1766305927282449 4.5658e-08  
a 2.609927516466511 1.1306e-08 au
q 2.148934472255275 1.2239e-07 au
i 14.52887336304805 5.2839e-06 deg
node 75.26933892182066 1.3755e-05 deg
peri 219.7857785642252 1.8776e-05 deg
M 50.94303303438757 1.1979e-05 deg
tp 2458782.566801070761
(2019-Oct-26.06680107)
5.1158e-05 TDB
period 1540.072252108875
4.22
1.0007e-05
2.74e-08
d
yr
n .2337552666811829 1.5189e-09 deg/d
Q 3.070920560677747 1.3302e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1723  
   data-arc span      15405 days (42.18 yr)  
   first obs. used      1977-07-12  
   last obs. used      2019-09-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47782  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 01:28:34  

Additional Information
 Earth MOID = 1.1523 au 
 Jupiter MOID = 2.13892 au 
 T_jup = 3.343 
[ 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 13.2   n/a MPO449096  
diameter diameter 5.372 km 0.146 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.423   0.072 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19735 (1999 XN212)          Discovered 1999-Dec-14 by LINEAR at Socorro
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 XN212 = 1998 MH22 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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