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46911 (1998 RW72)
Classification: Main-belt Asteroid          SPK-ID: 2046911
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2233047313251118 3.1144e-08  
a 2.593316105929773 1.1224e-08 au
q 2.01421634965404 7.8633e-08 au
i 1.875482415136974 5.5069e-06 deg
node 23.02747184243752 0.00012211 deg
peri 292.5765535184966 0.00012306 deg
M 103.1156029914588 1.5944e-05 deg
tp 2458563.578417724263
(2019-Mar-21.07841772)
6.5761e-05 TDB
period 1525.392521171544
4.18
9.9034e-06
2.711e-08
d
yr
n .2360048282677497 1.5322e-09 deg/d
Q 3.172415862205506 1.3731e-08 au
  Orbit Determination Parameters
   # obs. used (total)      680  
   data-arc span      9768 days (26.74 yr)  
   first obs. used      1993-04-29  
   last obs. used      2020-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52923  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 08:37:21  

Additional Information
 Earth MOID = 1.00152 au 
 Jupiter MOID = 2.13192 au 
 T_jup = 3.382 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456950.5 (2014-Oct-20.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2246814771721159 3.1103e-08  
q 2.009919761767761 7.8542e-08 au
tp 2457039.857959597664
(2015-Jan-17.35795960)
5.979e-05 TDB
node 23.05116989544381 0.00012191 deg
peri 292.7660985270369 0.00012285 deg
i 1.878448310962175 5.5083e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      680  
   data-arc span      9768 days (26.74 yr)  
   first obs. used      1993-04-29  
   last obs. used      2020-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52923  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 08:37:21  

Additional Information
 Jupiter MOID = 2.13192 au 
 T_jup = 3.382 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.674114594118356E-16 -2.429571826886429E-15 2.000585850734596E-13 -3.700056473899201E-15 3.57207705498482E-14 -3.73411447421246E-16
q -2.429571826886429E-15 6.168822023539826E-15 -2.6547567177806E-13 8.031736573273662E-15 -3.128792946465513E-14 1.04038967752687E-15
tp 2.000585850734596E-13 -2.6547567177806E-13 3.574831753888116E-9 -6.146251721206572E-12 9.214621515241081E-10 4.904731977033832E-13
node -3.700056473899201E-15 8.031736573273662E-15 -6.146251721206572E-12 1.486175976130495E-8 -1.485470836330543E-8 2.36893476514568E-10
peri 3.57207705498482E-14 -3.128792946465513E-14 9.214621515241081E-10 -1.485470836330543E-8 1.509242452212629E-8 -2.3662472680676E-10
i -3.73411447421246E-16 1.04038967752687E-15 4.904731977033832E-13 2.36893476514568E-10 -2.3662472680676E-10 3.034126244742178E-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 15.9   n/a MPO432027  

46911 (1998 RW72)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 RW72 = 1999 YT28 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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