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47438 (1999 XD177)
Classification: Main-belt Asteroid          SPK-ID: 2047438
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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1007329897751329 3.3538e-08  
a 2.242567963953014 7.0918e-09 au
q 2.016667388170095 7.5026e-08 au
i 6.571087317176879 3.4966e-06 deg
node 63.88276547463703 3.4661e-05 deg
peri 62.15136233987852 3.9855e-05 deg
M 20.83879858958505 1.9201e-05 deg
tp 2458929.495311921426
(2020-Mar-20.99531192)
6.5377e-05 TDB
period 1226.639222909048
3.36
5.8186e-06
1.593e-08
d
yr
n .2934848268965657 1.3921e-09 deg/d
Q 2.468468539735934 7.8061e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1766  
   data-arc span      10559 days (28.91 yr)  
   first obs. used      1991-07-18  
   last obs. used      2020-06-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46548  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:42:15  

Additional Information
 Earth MOID = 1.04188 au 
 Jupiter MOID = 2.58828 au 
 T_jup = 3.618 
[ 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 14.5   n/a MPO359056  
diameter diameter 2.788 km 0.118 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.395   0.063 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

47438 (1999 XD177)          Discovered 1999-Dec-10 by LINEAR at Socorro
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 XD177 = 1994 LA5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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