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300419 (2007 RO321)
Classification: Main-belt Asteroid          SPK-ID: 2300419
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1468656934355567 5.9371e-08  
a 2.554487387019648 2.6414e-08 au
q 2.179320825552624 1.5056e-07 au
i 12.49307740430613 7.587e-06 deg
node 2.38284764497108 2.2554e-05 deg
peri 248.3301106897015 3.1496e-05 deg
M 205.63303394879 2.3315e-05 deg
tp 2459839.949038459887
(2022-Sep-17.44903846)
0.00010026 TDB
period 1491.262410179077
4.08
2.313e-05
6.333e-08
d
yr
n .2414062056031906 3.7443e-09 deg/d
Q 2.929653948486672 3.0294e-08 au
  Orbit Determination Parameters
   # obs. used (total)      451  
   data-arc span      6357 days (17.40 yr)  
   first obs. used      2003-09-21  
   last obs. used      2021-02-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52918  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 05:34:50  

Additional Information
 Earth MOID = 1.20103 au 
 Jupiter MOID = 2.19266 au 
 T_jup = 3.390 
[ show covariance matrix ]

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 15.80   n/a MPCxxxxx  
diameter diameter 2.270 km 0.549 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.197   0.060 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

300419 (2007 RO321)          Discovered 2007-Sep-14 by LINEAR at Socorro
Reference: 20111012/Numbers.arcLast Updated: 2011-10-13

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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