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49969 (1999 XS247)
Classification: Main-belt Asteroid          SPK-ID: 2049969
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2184406194896264 4.4981e-08  
a 2.22647908471922 9.1724e-09 au
q 1.740125614172458 9.9027e-08 au
i 4.970819994269099 4.6658e-06 deg
node 129.0076900521613 5.9025e-05 deg
peri 197.9122055665379 6.0147e-05 deg
M 134.9184539797869 1.4651e-05 deg
tp 2458545.726435408018
(2019-Mar-03.22643541)
4.7745e-05 TDB
period 1213.46249103656
3.32
7.4986e-06
2.053e-08
d
yr
n .296671716397663 1.8333e-09 deg/d
Q 2.712832555265984 1.1176e-08 au
  Orbit Determination Parameters
   # obs. used (total)      782  
   data-arc span      10584 days (28.98 yr)  
   first obs. used      1991-02-22  
   last obs. used      2020-02-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58491  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:29:52  

Additional Information
 Earth MOID = .729151 au 
 Jupiter MOID = 2.62922 au 
 T_jup = 3.609 
[ 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 15.6   n/a MPO449321  
diameter diameter 2.168 km 0.619 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.260   0.210 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

49969 (1999 XS247)          Discovered 1999-Dec-06 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 XS247 = 2001 FV61 = 2001 FX194 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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