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78560 (2002 RL154)
Classification: Main-belt Asteroid          SPK-ID: 2078560
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08941830575401587 3.8563e-08  
a 2.976731167961229 2.2297e-08 au
q 2.710556910236964 1.1389e-07 au
i 9.776006586641962 6.0405e-06 deg
node 318.5124506063921 2.3267e-05 deg
peri 124.4377372510437 5.0861e-05 deg
M 101.9574647825618 4.0917e-05 deg
tp 2458669.218887943113
(2019-Jul-04.71888794)
0.0002143 TDB
period 1875.892076645589
5.14
2.1077e-05
5.771e-08
d
yr
n .1919086947921549 2.1562e-09 deg/d
Q 3.242905425685495 2.4291e-08 au
  Orbit Determination Parameters
   # obs. used (total)      950  
   data-arc span      8158 days (22.34 yr)  
   first obs. used      1998-11-16  
   last obs. used      2021-03-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47726  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 07:30:46  

Additional Information
 Earth MOID = 1.74086 au 
 Jupiter MOID = 1.93566 au 
 T_jup = 3.233 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457389.5 (2016-Jan-02.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08940325315966247 3.8804e-08  
q 2.710943391748207 1.1507e-07 au
tp 2456797.941146306577
(2014-May-20.44114631)
0.0002189 TDB
node 318.5397565668412 2.3264e-05 deg
peri 125.3851138677844 5.074e-05 deg
i 9.776524872810409 6.0408e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      950  
   data-arc span      8158 days (22.34 yr)  
   first obs. used      1998-11-16  
   last obs. used      2021-03-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47726  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 07:30:46  

Additional Information
 Jupiter MOID = 1.93566 au 
 T_jup = 3.233 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.505767458591507E-15 -4.395455979320798E-15 1.648795997134934E-12 -2.457353042187125E-15 3.1165476372228E-13 -2.093542879694523E-15
q -4.395455979320798E-15 1.324057244398374E-14 -6.331060756850521E-12 6.449102961706062E-15 -1.196707072400837E-12 6.30981799036795E-15
tp 1.648795997134934E-12 -6.331060756850521E-12 4.791816587552744E-8 -3.351922489811938E-11 9.877322373688078E-9 1.586835645976921E-11
node -2.457353042187125E-15 6.449102961706062E-15 -3.351922489811938E-11 5.411995496948425E-10 -5.39870733689561E-10 1.602560309073763E-11
peri 3.1165476372228E-13 -1.196707072400837E-12 9.877322373688078E-9 -5.39870733689561E-10 2.574580953871219E-9 -1.236743125964916E-11
i -2.093542879694523E-15 6.30981799036795E-15 1.586835645976921E-11 1.602560309073763E-11 -1.236743125964916E-11 3.649076226156421E-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 14.64   n/a E2020-QM9  
diameter diameter 5.306 km 0.333 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.109   0.023 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

78560 (2002 RL154)          Discovered 2002-Sep-10 by NEAT at Haleakala
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

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