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120879 (1998 RP41)
Classification: Main-belt Asteroid          SPK-ID: 2120879
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .125739933175519 3.9238e-08  
a 2.833325809911651 2.0443e-08 au
q 2.477063611908886 1.1188e-07 au
i 14.49997397545161 7.3546e-06 deg
node 345.3599386461235 1.6726e-05 deg
peri 291.2728341764231 3.2794e-05 deg
M 302.4933381923817 2.7448e-05 deg
tp 2459478.765177087114
(2021-Sep-21.26517709)
0.00013319 TDB
period 1741.980156777071
4.77
1.8853e-05
5.162e-08
d
yr
n .2066613667207639 2.2366e-09 deg/d
Q 3.189588007914415 2.3013e-08 au
  Orbit Determination Parameters
   # obs. used (total)      473  
   data-arc span      21752 days (59.55 yr)  
   first obs. used      1960-09-28  
   last obs. used      2020-04-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55552  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 17:08:33  

Additional Information
 Earth MOID = 1.50245 au 
 Jupiter MOID = 2.16289 au 
 T_jup = 3.254 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456916.5 (2014-Sep-16.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1268660908046962 3.9184e-08  
q 2.475605392020348 1.1158e-07 au
tp 2457729.528127302028
(2016-Dec-07.02812730)
0.00013024 TDB
node 345.4354058095674 1.6762e-05 deg
peri 290.0732681578478 3.2452e-05 deg
i 14.48360292082538 7.3446e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      473  
   data-arc span      21752 days (59.55 yr)  
   first obs. used      1960-09-28  
   last obs. used      2020-04-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55552  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 17:08:33  

Additional Information
 Jupiter MOID = 2.16289 au 
 T_jup = 3.254 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.535376714430799E-15 -4.316782515712947E-15 1.292177747151388E-12 1.417084694964036E-15 2.919352060362308E-13 7.506349920725146E-16
q -4.316782515712947E-15 1.245034568040415E-14 -3.532031902984026E-12 -4.589823571924059E-15 -8.313077094503768E-13 -3.090957042401185E-15
tp 1.292177747151388E-12 -3.532031902984026E-12 1.69633428186352E-8 -5.644952061271478E-12 3.620562478200953E-9 1.097757672985597E-11
node 1.417084694964036E-15 -4.589823571924059E-15 -5.644952061271478E-12 2.809528618993175E-10 -2.731934732452056E-10 1.110084860856465E-11
peri 2.919352060362308E-13 -8.313077094503768E-13 3.620562478200953E-9 -2.731934732452056E-10 1.053139525066352E-9 -8.530471656922826E-12
i 7.506349920725146E-16 -3.090957042401185E-15 1.097757672985597E-11 1.110084860856465E-11 -8.530471656922826E-12 5.39428671589438E-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 15.26   n/a E2021B55  

120879 (1998 RP41)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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