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39515 (1986 XD5)
Classification: Main-belt Asteroid          SPK-ID: 2039515
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2193290244190085 5.3932e-08  
a 2.278636309507873 9.5872e-09 au
q 1.778865230737781 1.2102e-07 au
i 8.739408450925467 4.7459e-06 deg
node 74.85542553321524 3.1904e-05 deg
peri 312.823992207768 3.3208e-05 deg
M 291.5998042875249 1.3082e-05 deg
tp 2459239.207349544613
(2021-Jan-24.70734954)
4.6715e-05 TDB
period 1256.350876498845
3.44
7.929e-06
2.171e-08
d
yr
n .2865441547692756 1.8084e-09 deg/d
Q 2.778407388277965 1.169e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1120  
   data-arc span      11898 days (32.57 yr)  
   first obs. used      1986-12-04  
   last obs. used      2019-07-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50787  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 05:28:39  

Additional Information
 Earth MOID = .797787 au 
 Jupiter MOID = 2.68207 au 
 T_jup = 3.560 
[ 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 15.1   n/a MPO385068  
diameter diameter 4.851 km 0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.086   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

39515 (1986 XD5)          Discovered 1986-Dec-04 by Mrkos, A. at Klet
Reference: 20020526/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1986 XD5 = 1998 FT89 = 2000 WY172 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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