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JPL Small-Body Database Browser
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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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2193290023667962 5.4198e-08  
a 2.278636312563558 9.7414e-09 au
q 1.778865283372237 1.2167e-07 au
i 8.73940399883093 4.8152e-06 deg
node 74.85543386490789 3.235e-05 deg
peri 312.8239740314437 3.3688e-05 deg
M 291.5998120386653 1.3112e-05 deg
tp 2459239.207322974356
(2021-Jan-24.70732297)
4.6807e-05 TDB
period 1256.350879026022
3.44
8.0565e-06
2.206e-08
d
yr
n .2865441541928857 1.8375e-09 deg/d
Q 2.778407341754878 1.1878e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1105  
   data-arc span      11845 days (32.43 yr)  
   first obs. used      1986-12-04  
   last obs. used      2019-05-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50946  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:09:36  

Additional Information
 Earth MOID = .797787 au 
 Jupiter MOID = 2.68207 au 
 T_jup = 3.560 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456512.5 (2013-Aug-08.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2193324905710519 5.4148e-08  
q 1.778378356468296 1.2156e-07 au
tp 2456728.369783323897
(2014-Mar-11.86978332)
3.7916e-05 TDB
node 74.92824129678986 3.2318e-05 deg
peri 312.9160532350892 3.3662e-05 deg
i 8.744451927464208 4.8182e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1105  
   data-arc span      11845 days (32.43 yr)  
   first obs. used      1986-12-04  
   last obs. used      2019-05-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50946  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:09:36  

Additional Information
 Jupiter MOID = 2.68207 au 
 T_jup = 3.560 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.93198007214928E-15 -6.570506559158226E-15 4.733148364742566E-13 2.746361610649197E-15 2.971812955453977E-14 -7.627579131085067E-16
q -6.570506559158226E-15 1.477640405711847E-14 -9.574741835426144E-13 -6.467581883482408E-15 -4.236199740923766E-14 1.665978348345667E-15
tp 4.733148364742566E-13 -9.574741835426144E-13 1.437604959868938E-9 2.770328163890415E-12 3.770985797946739E-10 -2.878075265065708E-12
node 2.746361610649197E-15 -6.467581883482408E-15 2.770328163890415E-12 1.044466849466892E-9 -1.030816953248446E-9 -3.602659333071888E-11
peri 2.971812955453977E-14 -4.236199740923766E-14 3.770985797946739E-10 -1.030816953248446E-9 1.133097314260666E-9 3.485133252239231E-11
i -7.627579131085067E-16 1.665978348345667E-15 -2.878075265065708E-12 -3.602659333071888E-11 3.485133252239231E-11 2.321468647842801E-11

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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