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120877 (1998 RF37)
Classification: Main-belt Asteroid          SPK-ID: 2120877
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1621650577132696 4.0519e-08  
a 2.19927365317564 1.0227e-08 au
q 1.842628314281139 8.7161e-08 au
i 5.558943495316797 4.479e-06 deg
node 218.0793773665829 4.0012e-05 deg
peri 186.365694689058 4.3002e-05 deg
M 259.8308787427497 2.0007e-05 deg
tp 2459531.973410901010
(2021-Nov-13.47341090)
6.7899e-05 TDB
period 1191.289555370104
3.26
8.3098e-06
2.275e-08
d
yr
n .3021935333665852 2.1079e-09 deg/d
Q 2.555918992070141 1.1886e-08 au
  Orbit Determination Parameters
   # obs. used (total)      490  
   data-arc span      8977 days (24.58 yr)  
   first obs. used      1995-12-20  
   last obs. used      2020-07-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56342  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 17:08:33  

Additional Information
 Earth MOID = .850752 au 
 Jupiter MOID = 2.82879 au 
 T_jup = 3.643 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457509.5 (2016-May-01.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1618499051827604 4.0456e-08  
q 1.843410729316998 8.6885e-08 au
tp 2457150.746016923406
(2015-May-08.24601692)
5.7018e-05 TDB
node 218.1214207163493 4.0027e-05 deg
peri 186.5247492644214 4.303e-05 deg
i 5.557065894014861 4.4785e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      490  
   data-arc span      8977 days (24.58 yr)  
   first obs. used      1995-12-20  
   last obs. used      2020-07-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56342  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 17:08:33  

Additional Information
 Jupiter MOID = 2.82879 au 
 T_jup = 3.643 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.63671327576562E-15 -3.499306779010432E-15 3.965268661410888E-13 -9.724333812695439E-15 1.036715076932591E-13 1.526726300387676E-16
q -3.499306779010432E-15 7.54903706942109E-15 -5.896010191855479E-13 1.938038636563344E-14 -1.490063508406068E-13 -5.885579392869598E-16
tp 3.965268661410888E-13 -5.896010191855479E-13 3.251028896947673E-9 -8.732878484531447E-12 9.123117148810616E-10 -2.782673952305341E-12
node -9.724333812695439E-15 1.938038636563344E-14 -8.732878484531447E-12 1.602165215683877E-9 -1.596663985922941E-9 1.335592249691969E-12
peri 1.036715076932591E-13 -1.490063508406068E-13 9.123117148810616E-10 -1.596663985922941E-9 1.85155493475031E-9 -2.100720397348948E-12
i 1.526726300387676E-16 -5.885579392869598E-16 -2.782673952305341E-12 1.335592249691969E-12 -2.100720397348948E-12 2.005668550666085E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.39   n/a E2021B55  

120877 (1998 RF37)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

Alternate Designations
 1998 RF37 = 2001 OF19 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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