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102934 (1999 XY42)
Classification: Main-belt Asteroid          SPK-ID: 2102934
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .028903926811684 6.2138e-08  
a 2.629493893863093 1.698e-08 au
q 2.553491194803104 1.7215e-07 au
i 21.31361569443447 5.3291e-06 deg
node 244.0162470735256 1.6781e-05 deg
peri 186.6564627265436 0.00014833 deg
M 323.1674929578873 0.00014493 deg
tp 2459359.843905192020
(2021-May-25.34390519)
0.0006271 TDB
period 1557.423332697388
4.26
1.5085e-05
4.13e-08
d
yr
n .231151025184974 2.2389e-09 deg/d
Q 2.705496592923082 1.747e-08 au
  Orbit Determination Parameters
   # obs. used (total)      848  
   data-arc span      7759 days (21.24 yr)  
   first obs. used      1999-10-14  
   last obs. used      2021-01-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46928  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:32:49  

Additional Information
 Earth MOID = 1.56689 au 
 Jupiter MOID = 2.47098 au 
 T_jup = 3.303 
[ 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 15.10   n/a E2021B55  
diameter diameter 2.978 km 0.391 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.263   0.065 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

102934 (1999 XY42)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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