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102151 (1999 RA198)
Classification: Main-belt Asteroid          SPK-ID: 2102151
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1961894370299265 3.165e-08  
a 2.285128169902114 7.8666e-09 au
q 1.836810160707792 7.1683e-08 au
i 5.895437716378967 6.7931e-06 deg
node 235.3537334335723 4.0296e-05 deg
peri 68.31993176507594 4.5536e-05 deg
M 91.06398905571679 2.2007e-05 deg
tp 2458881.340009912498
(2020-Feb-01.84000991)
7.6242e-05 TDB
period 1261.723735396671
3.45
6.5152e-06
1.784e-08
d
yr
n .2853239500062351 1.4733e-09 deg/d
Q 2.733446179096436 9.4099e-09 au
  Orbit Determination Parameters
   # obs. used (total)      713  
   data-arc span      10338 days (28.30 yr)  
   first obs. used      1992-09-19  
   last obs. used      2021-01-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54951  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:30:40  

Additional Information
 Earth MOID = .829594 au 
 Jupiter MOID = 2.51172 au 
 T_jup = 3.570 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457502.5 (2016-Apr-24.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1959095632497581 3.1602e-08  
q 1.837490806621761 7.1555e-08 au
tp 2457620.088952899387
(2016-Aug-19.58895290)
7.3287e-05 TDB
node 235.3664759568751 4.0282e-05 deg
peri 68.47536797246509 4.5551e-05 deg
i 5.896055343400244 6.795e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      713  
   data-arc span      10338 days (28.30 yr)  
   first obs. used      1992-09-19  
   last obs. used      2021-01-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54951  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:30:40  

Additional Information
 Jupiter MOID = 2.51172 au 
 T_jup = 3.570 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.98670542943256E-16 -2.25267930171712E-15 2.92877289558081E-13 1.171620076465319E-15 4.702531274867898E-14 5.241728647969187E-16
q -2.25267930171712E-15 5.120173678369741E-15 -4.60484761275165E-13 -3.589083576699104E-15 -5.03472852043036E-14 -7.910884137813628E-16
tp 2.92877289558081E-13 -4.60484761275165E-13 5.371016522386513E-9 -3.332577470993887E-11 1.569321436291089E-9 4.335655393435235E-12
node 1.171620076465319E-15 -3.589083576699104E-15 -3.332577470993887E-11 1.622673176050507E-9 -1.623316024581238E-9 -1.2983573159252E-10
peri 4.702531274867898E-14 -5.03472852043036E-14 1.569321436291089E-9 -1.623316024581238E-9 2.074909255790355E-9 1.304302781611756E-10
i 5.241728647969187E-16 -7.910884137813628E-16 4.335655393435235E-12 -1.2983573159252E-10 1.304302781611756E-10 4.617252088808944E-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 16.25   n/a E2021B55  

102151 (1999 RA198)          Discovered 1999-Sep-08 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1999 RA198 = 2002 JH58 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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