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78440 (2002 RL13)
Classification: Outer Main-belt Asteroid          SPK-ID: 2078440
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1566732918989828 3.152e-08  
a 3.235480290953867 1.8868e-08 au
q 2.728566942895846 1.0192e-07 au
i 2.441538375777517 3.731e-06 deg
node 104.4761048222796 8.5411e-05 deg
peri 263.4149554211946 8.646e-05 deg
M 43.00150744173481 1.2299e-05 deg
tp 2458946.585358500525
(2020-Apr-07.08535850)
7.2703e-05 TDB
period 2125.722477605384
5.82
1.8595e-05
5.091e-08
d
yr
n .1693541860673828 1.4814e-09 deg/d
Q 3.742393639011888 2.1824e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1543  
   data-arc span      10214 days (27.96 yr)  
   first obs. used      1993-01-29  
   last obs. used      2021-01-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52705  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 07:15:07  

Additional Information
 Earth MOID = 1.72742 au 
 Jupiter MOID = 1.72211 au 
 T_jup = 3.164 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457342.5 (2015-Nov-16.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1618445464237807 3.2771e-08  
q 2.708674351596664 1.0668e-07 au
tp 2456801.678154983704
(2014-May-24.17815498)
6.8716e-05 TDB
node 104.8845256009543 8.5772e-05 deg
peri 260.4073971887384 8.6663e-05 deg
i 2.438312565358463 3.7201e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1543  
   data-arc span      10214 days (27.96 yr)  
   first obs. used      1993-01-29  
   last obs. used      2021-01-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52705  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 07:15:07  

Additional Information
 Jupiter MOID = 1.72211 au 
 T_jup = 3.164 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.073948764171598E-15 -3.460004941007572E-15 8.244776302498363E-14 -3.574706329993848E-15 -1.115057299030304E-14 -3.175838843252874E-16
q -3.460004941007572E-15 1.137965789468848E-14 -4.802677879358413E-13 1.107973472716111E-14 1.079695517826554E-14 1.418946704435578E-15
tp 8.244776302498363E-14 -4.802677879358413E-13 4.721828515232988E-9 -1.344065391189475E-11 8.67500856502696E-10 -2.838910812399792E-13
node -3.574706329993848E-15 1.107973472716111E-14 -1.344065391189475E-11 7.356766500180182E-9 -7.352134310132085E-9 -4.131425490193164E-11
peri -1.115057299030304E-14 1.079695517826554E-14 8.67500856502696E-10 -7.352134310132085E-9 7.510547640127474E-9 4.121182107033624E-11
i -3.175838843252874E-16 1.418946704435578E-15 -2.838910812399792E-13 -4.131425490193164E-11 4.121182107033624E-11 1.38392856985113E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.0   n/a MPO502629  
diameter diameter 6.883 km 0.380 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.103   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

78440 (2002 RL13)          Discovered 2002-Sep-04 by LONEOS at Anderson Mesa
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 2002 RL13 = 2000 GZ50 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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