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71143 (1999 XR181)
Classification: Main-belt Asteroid          SPK-ID: 2071143
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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .21008254173352 5.0281e-08  
a 2.597951558369128 1.4947e-08 au
q 2.052167291686383 1.3559e-07 au
i 14.48803040943256 4.9594e-06 deg
node 33.90958169203081 1.9771e-05 deg
peri 283.4475795246479 2.2263e-05 deg
M 46.48865617196208 1.2466e-05 deg
tp 2458802.989816777147
(2019-Nov-15.48981678)
5.2136e-05 TDB
period 1529.484218627736
4.19
1.3199e-05
3.614e-08
d
yr
n .2353734648684341 2.0312e-09 deg/d
Q 3.143735825051874 1.8087e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1713  
   data-arc span      7309 days (20.01 yr)  
   first obs. used      1999-10-05  
   last obs. used      2019-10-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45918  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 11:24:57  

Additional Information
 Earth MOID = 1.09685 au 
 Jupiter MOID = 2.37411 au 
 T_jup = 3.341 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456241.5 (2012-Nov-10.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2094074254181047 5.0286e-08  
q 2.055488968791694 1.3597e-07 au
tp 2455745.854515600224
(2011-Jul-03.35451560)
4.6746e-05 TDB
node 33.98622397608596 1.9741e-05 deg
peri 283.9235325486661 2.2254e-05 deg
i 14.4967151326839 4.9615e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1713  
   data-arc span      7309 days (20.01 yr)  
   first obs. used      1999-10-05  
   last obs. used      2019-10-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45918  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 11:24:57  

Additional Information
 Jupiter MOID = 2.37411 au 
 T_jup = 3.341 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.528651700942987E-15 -6.814930491179022E-15 4.46961317165891E-13 8.349102119397354E-15 9.605835115025894E-14 -3.930466998312983E-15
q -6.814930491179022E-15 1.848831954382714E-14 -1.206121630217679E-12 -2.142930593934254E-14 -2.560801446548305E-13 1.062474156204964E-14
tp 4.46961317165891E-13 -1.206121630217679E-12 2.185183039442958E-9 1.745927982974904E-12 5.068080001568345E-10 -8.981946839511619E-13
node 8.349102119397354E-15 -2.142930593934254E-14 1.745927982974904E-12 3.89688381403856E-10 -3.769216596836085E-10 -1.965123355617749E-11
peri 9.605835115025894E-14 -2.560801446548305E-13 5.068080001568345E-10 -3.769216596836085E-10 4.952357519632779E-10 1.90007352508241E-11
i -3.930466998312983E-15 1.062474156204964E-14 -8.981946839511619E-13 -1.965123355617749E-11 1.90007352508241E-11 2.461661788631282E-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 13.6   n/a MPO337798  
diameter diameter 5.037 km 0.221 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.304   0.038 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

71143 (1999 XR181)          Discovered 1999-Dec-12 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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