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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1008286247027868 3.4893e-08  
a 2.242455122882443 7.5592e-09 au
q 2.016351456884488 7.749e-08 au
i 6.571604735038766 3.6663e-06 deg
node 63.88462743902847 3.6265e-05 deg
peri 62.26468434249956 4.1849e-05 deg
M 263.3479958816419 2.1011e-05 deg
tp 2458929.800530657021
(2020-Mar-21.30053066)
7.2017e-05 TDB
period 1226.546641405964
3.36
6.2019e-06
1.698e-08
d
yr
n .2935069795530481 1.4841e-09 deg/d
Q 2.468558788880399 8.3213e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1579  
   data-arc span      10369 days (28.39 yr)  
   first obs. used      1991-07-18  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48225  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 04:03:31  

Additional Information
 Earth MOID = 1.04193 au 
 Jupiter MOID = 2.5895 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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