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452162 (2015 RY57)
Classification: Main-belt Asteroid          SPK-ID: 2452162
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06020358634653946 3.0204e-07  
a 2.662394981706713 9.7258e-08 au
q 2.50210925553694 7.2833e-07 au
i 11.06800481679462 1.983e-05 deg
node .1168650390269116 3.0804e-05 deg
peri 214.9311758677221 0.00014403 deg
M 172.5622715297411 0.0001284 deg
tp 2458239.910187445419
(2018-May-01.41018745)
0.00058436 TDB
period 1586.745063636101
4.34
8.6946e-05
2.38e-07
d
yr
n .2268795462171113 1.2432e-08 deg/d
Q 2.822680707876487 1.0311e-07 au
  Orbit Determination Parameters
   # obs. used (total)      93  
   data-arc span      3858 days (10.56 yr)  
   first obs. used      2009-03-03  
   last obs. used      2019-09-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52609  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 16:47:47  

Additional Information
 Earth MOID = 1.50554 au 
 Jupiter MOID = 2.15896 au 
 T_jup = 3.356 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457443.5 (2016-Feb-25.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05970635193832122 3.0025e-07  
q 2.504065701519139 7.2204e-07 au
tp 2456657.502792822544
(2013-Dec-31.00279282)
0.00065904 TDB
node .1826738129780868 3.0766e-05 deg
peri 216.0307908894195 0.00015034 deg
i 11.07510704530303 1.9839e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      93  
   data-arc span      3858 days (10.56 yr)  
   first obs. used      2009-03-03  
   last obs. used      2019-09-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52609  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 16:47:47  

Additional Information
 Jupiter MOID = 2.15896 au 
 T_jup = 3.356 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.0151307255136E-14 -2.162997006305386E-13 -1.5146410592476E-10 -6.223483973288746E-14 -3.474763879527119E-11 3.253456110006529E-13
q -2.162997006305386E-13 5.213375602995931E-13 3.664913787910111E-10 1.432131736516538E-13 8.426219086043379E-11 -7.727610873002891E-13
tp -1.5146410592476E-10 3.664913787910111E-10 4.343311177708226E-7 8.683843048632631E-11 9.68853126783502E-8 -7.156715875781178E-10
node -6.223483973288746E-14 1.432131736516538E-13 8.683843048632631E-11 9.465746058701846E-10 -9.081800686601313E-10 -5.335267388838166E-11
peri -3.474763879527119E-11 8.426219086043379E-11 9.68853126783502E-8 -9.081800686601313E-10 2.260206190958495E-8 -1.08078275577534E-10
i 3.253456110006529E-13 -7.727610873002891E-13 -7.156715875781178E-10 -5.335267388838166E-11 -1.08078275577534E-10 3.935983038386873E-10

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.7   n/a MPO350650  
diameter diameter 3.013 km 0.688 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.026   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

452162 (2015 RY57)          Discovered 2009-Mar-03 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-11-30

Alternate Designations
 2015 RY57 = 2010 HL28 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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