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13835 (1999 XJ20)
Classification: Main-belt Asteroid          SPK-ID: 2013835
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05551327526972655 3.6307e-08  
a 2.845789769978798 1.2485e-08 au
q 2.687810659118194 1.0229e-07 au
i 3.046840580305471 3.6384e-06 deg
node 68.36490688448093 7.9575e-05 deg
peri 248.3394878674479 8.8771e-05 deg
M 218.9518045946025 4.1139e-05 deg
tp 2459887.517312098984
(2022-Nov-04.01731210)
0.00020149 TDB
period 1753.487392339723
4.80
1.1539e-05
3.159e-08
d
yr
n .2053051545010785 1.3511e-09 deg/d
Q 3.003768880839403 1.3178e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2287  
   data-arc span      16578 days (45.39 yr)  
   first obs. used      1975-11-02  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46836  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 01:36:37  

Additional Information
 Earth MOID = 1.67404 au 
 Jupiter MOID = 2.15243 au 
 T_jup = 3.303 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456985.5 (2014-Nov-24.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05624741511174839 3.5928e-08  
q 2.68505654398591 1.0125e-07 au
tp 2456364.284155935428
(2013-Mar-12.78415594)
0.00019519 TDB
node 68.50848939320622 7.9553e-05 deg
peri 245.1133845470903 8.8648e-05 deg
i 3.047549088151424 3.6372e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2287  
   data-arc span      16578 days (45.39 yr)  
   first obs. used      1975-11-02  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46836  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 01:36:37  

Additional Information
 Jupiter MOID = 2.15243 au 
 T_jup = 3.303 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.290855445518979E-15 -3.613709829282515E-15 2.290553635175081E-12 -5.867676533905837E-15 4.55826084637295E-13 2.510326951912723E-16
q -3.613709829282515E-15 1.025180645449346E-14 -6.09303280269374E-12 1.615243499350633E-14 -1.202975761149356E-12 -5.930954131805684E-16
tp 2.290553635175081E-12 -6.09303280269374E-12 3.80975925357983E-8 -2.419092940176869E-13 7.660464039043019E-9 9.173202019650363E-13
node -5.867676533905837E-15 1.615243499350633E-14 -2.419092940176869E-13 6.328696052604719E-9 -6.319319410980611E-9 -5.338873549174763E-11
peri 4.55826084637295E-13 -1.202975761149356E-12 7.660464039043019E-9 -6.319319410980611E-9 7.858473894523339E-9 5.349168886712974E-11
i 2.510326951912723E-16 -5.930954131805684E-16 9.173202019650363E-13 -5.338873549174763E-11 5.349168886712974E-11 1.322925344225322E-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 13.39   n/a E2021B10  
diameter diameter 5.477 km 0.383 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.309   0.060 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

13835 (1999 XJ20)          Discovered 1999-Dec-05 by LINEAR at Socorro
Reference: 20000222/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 XJ20 = 1975 VC4 = 1982 KH = 1985 YS1 = 1997 ET58 = 1998 MP29 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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