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(1999 RM45)
Classification: Apollo [NEO, PHA]          SPK-ID: 3022036
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | 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 69 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6440586293274316 8.6872e-08  
a 1.681262900550129 1.0864e-08 au
q .5984310212827507 1.4956e-07 au
i 10.88953136964341 8.9327e-06 deg
node 162.8360871295404 4.5404e-06 deg
peri 88.77176789895471 1.7135e-05 deg
M 303.7913928485944 3.7255e-07 deg
tp 2459324.823204090521
(2021-Apr-20.32320409)		 8.3958e-07 TDB
period 796.2544482205421
2.18		 7.7176e-06
2.113e-08		 d
yr
n .4521167835288365 4.3821e-09 deg/d
Q 2.764094779817507 1.7861e-08 au
   Orbit Determination Parameters
   # obs. used (total)      826  
   # delay obs. used      2  
   # Doppler obs. used      0  
   data-arc span      7840 days (21.46 yr)  
   first obs. used      1999-09-14  
   last obs. used      2021-03-02  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .29834  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 20:50:48  

Additional Information
 Earth MOID = .00317413 au 
 Jupiter MOID = 2.38871 au 
 T_jup = 3.949 
[ show covariance matrix ]

[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 19.70   n/a E2021-DA1  

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