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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 71 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6440586307221455 8.6448e-08  
a 1.681262900386147 1.0819e-08 au
q .598431018879502 1.4883e-07 au
i 10.88953090707073 8.8231e-06 deg
node 162.8360873880686 4.4382e-06 deg
peri 88.77176791626485 1.7049e-05 deg
M 303.7913928436321 3.7122e-07 deg
tp 2459324.823204083308
(2021-Apr-20.32320408)
8.3447e-07 TDB
period 796.2544481040482
2.18
7.686e-06
2.104e-08
d
yr
n .4521167835949823 4.3642e-09 deg/d
Q 2.764094781892791 1.7787e-08 au
  Orbit Determination Parameters
   # obs. used (total)      845  
   # delay obs. used      2  
   # Doppler obs. used      0  
   data-arc span      7841 days (21.47 yr)  
   first obs. used      1999-09-14  
   last obs. used      2021-03-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .2971  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-15 06:33:03  

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 19.76   n/a E2021-HE1  

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