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52074 (2002 RJ2)
Classification: Main-belt Asteroid          SPK-ID: 2052074
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2320234892402813 2.8619e-08  
a 2.295203361144347 6.3297e-09 au
q 1.762662268775614 6.6982e-08 au
i 3.138346867445913 2.9368e-06 deg
node 164.093808849621 6.8013e-05 deg
peri 127.6659303019993 6.8513e-05 deg
M 186.6967413784763 7.812e-06 deg
tp 2460007.912638499229
(2023-Mar-04.41263850)
2.7909e-05 TDB
period 1270.077386948717
3.48
5.2539e-06
1.438e-08
d
yr
n .2834472951800819 1.1725e-09 deg/d
Q 2.82774445351308 7.7983e-09 au
  Orbit Determination Parameters
   # obs. used (total)      746  
   data-arc span      10299 days (28.20 yr)  
   first obs. used      1992-11-21  
   last obs. used      2021-02-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53989  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 10:42:53  

Additional Information
 Earth MOID = .748334 au 
 Jupiter MOID = 2.37082 au 
 T_jup = 3.557 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457398.5 (2016-Jan-11.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2318659661558824 2.8576e-08  
q 1.762610148878047 6.6868e-08 au
tp 2457468.568354236185
(2016-Mar-21.06835424)
2.8087e-05 TDB
node 164.130667812328 6.8024e-05 deg
peri 127.6999749828991 6.8527e-05 deg
i 3.138158350010887 2.937e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      746  
   data-arc span      10299 days (28.20 yr)  
   first obs. used      1992-11-21  
   last obs. used      2021-02-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53989  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 10:42:53  

Additional Information
 Jupiter MOID = 2.37082 au 
 T_jup = 3.557 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.165866758764548E-16 -1.905988820228992E-15 -2.001807904225042E-13 3.859161233807439E-15 -4.031073829037414E-14 -1.989161130326676E-15
q -1.905988820228992E-15 4.471286190596202E-15 4.316491834942434E-13 -8.728084954615687E-15 8.243674648725575E-14 4.635877189226434E-15
tp -2.001807904225042E-13 4.316491834942434E-13 7.888618200348361E-10 5.842450022021598E-12 2.461125833468307E-10 2.445303110445915E-12
node 3.859161233807439E-15 -8.728084954615687E-15 5.842450022021598E-12 4.62727294709601E-9 -4.618156285866697E-9 2.844131967857135E-11
peri -4.031073829037414E-14 8.243674648725575E-14 2.461125833468307E-10 -4.618156285866697E-9 4.695955276829081E-9 -2.769814956037098E-11
i -1.989161130326676E-15 4.635877189226434E-15 2.445303110445915E-12 2.844131967857135E-11 -2.769814956037098E-11 8.626085867245518E-12

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 16.51   n/a MPCxxxxx  

52074 (2002 RJ2)          Discovered 2002-Sep-04 by LONEOS at Anderson Mesa
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2002 RJ2 = 1995 SJ33 = 1998 HK74 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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