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JPL Small-Body Database Browser
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452500 (2004 RW9)
Classification: Inner Main-belt Asteroid          SPK-ID: 2452500
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1053857863407414 9.771e-08  
a 1.934384829919288 1.5549e-08 au
q 1.730528163532642 1.8632e-07 au
i 18.31994135584791 1.0161e-05 deg
node 280.205189765773 2.8012e-05 deg
peri 75.84542339229836 5.9736e-05 deg
M 150.5939573726349 5.3017e-05 deg
tp 2458189.428101658224
(2018-Mar-11.92810166)
0.00014198 TDB
period 982.6814168702535
2.69
1.1849e-05
3.244e-08
d
yr
n .3663445688701081 4.4172e-09 deg/d
Q 2.138241496305934 1.7188e-08 au
  Orbit Determination Parameters
   # obs. used (total)      106  
   data-arc span      6952 days (19.03 yr)  
   first obs. used      2000-01-15  
   last obs. used      2019-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55647  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 18:48:39  

Additional Information
 Earth MOID = .794888 au 
 Jupiter MOID = 3.2089 au 
 T_jup = 3.841 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456628.5 (2013-Dec-02.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1053917524055574 9.7779e-08  
q 1.730580669616443 1.8646e-07 au
tp 2456223.794502021817
(2012-Oct-23.29450202)
0.00013057 TDB
node 280.2489204954307 2.801e-05 deg
peri 75.79465044600632 5.9706e-05 deg
i 18.31998081597357 1.0162e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      106  
   data-arc span      6952 days (19.03 yr)  
   first obs. used      2000-01-15  
   last obs. used      2019-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55647  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 18:48:39  

Additional Information
 Jupiter MOID = 3.2089 au 
 T_jup = 3.841 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.560720850097694E-15 -1.818415918507525E-14 -3.171950283486568E-12 1.781162277413457E-13 -1.577469671028434E-12 -4.897768815105628E-14
q -1.818415918507525E-14 3.476781748256169E-14 6.866242954571317E-12 -3.493997400007799E-13 3.34199480718231E-12 9.316393691808098E-14
tp -3.171950283486568E-12 6.866242954571317E-12 1.70488485471846E-8 -1.679923737356689E-10 6.922311057163773E-9 1.56968339415002E-11
node 1.781162277413457E-13 -3.493997400007799E-13 -1.679923737356689E-10 7.84534474505769E-10 -8.135850467179291E-10 7.691229602055575E-11
peri -1.577469671028434E-12 3.34199480718231E-12 6.922311057163773E-9 -8.135850467179291E-10 3.564806192074959E-9 -6.561365861381369E-11
i -4.897768815105628E-14 9.316393691808098E-14 1.56968339415002E-11 7.691229602055575E-11 -6.561365861381369E-11 1.032750195867144E-10

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.8   n/a MPO357340  

452500 (2004 RW9)          Discovered 2004-Sep-07 by LINEAR at Socorro
Reference: Last Updated: 2016-01-04
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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