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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 ]

[ hide orbit diagram ]

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 68 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6440586301085319 8.6863e-08  
a 1.681262900728212 1.0865e-08 au
q .5984310200329029 1.4954e-07 au
i 10.88953141990614 8.9327e-06 deg
node 162.8360872067705 4.5404e-06 deg
peri 88.77176802390679 1.7133e-05 deg
M 303.7913928670624 3.7263e-07 deg
tp 2459324.823204069426
(2021-Apr-20.32320407)
8.3951e-07 TDB
period 796.2544483470538
2.18
7.7183e-06
2.113e-08
d
yr
n .4521167834570027 4.3825e-09 deg/d
Q 2.76409478142352 1.7862e-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.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .2983  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-07 06:59:09  

Additional Information
 Earth MOID = .00317413 au 
 Jupiter MOID = 2.38871 au 
 T_jup = 3.949 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458476.5 (2018-Dec-24.0) TDB
Reference: JPL 68 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6442826768061768 8.6768e-08  
q .598005311426428 1.4934e-07 au
tp 2458528.544656724350
(2019-Feb-14.04465672)
7.0591e-06 TDB
node 162.8620690774254 4.5412e-06 deg
peri 88.73130149545929 1.7121e-05 deg
i 10.88981968989223 8.9327e-06 deg
  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.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .2983  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-07 06:59:09  

Additional Information
 Jupiter MOID = 2.38871 au 
 T_jup = 3.949 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.528691445659841E-15 -1.29569855674149E-14 5.366583963538723E-13 -1.580088429458344E-14 1.434603000257954E-12 4.675552081834703E-14
q -1.29569855674149E-14 2.230184437279699E-14 -9.291257932329436E-13 2.686742617613777E-14 -2.469089116382968E-12 -7.964445319892048E-14
tp 5.366583963538723E-13 -9.291257932329436E-13 4.983036622616024E-11 -8.737152745916365E-13 1.031747682712653E-10 4.704934862605875E-13
node -1.580088429458344E-14 2.686742617613777E-14 -8.737152745916365E-13 2.062290414195369E-11 -2.294458523192535E-11 -2.955557038786589E-11
peri 1.434603000257954E-12 -2.469089116382968E-12 1.031747682712653E-10 -2.294458523192535E-11 2.931285680673515E-10 3.549435900081662E-11
i 4.675552081834703E-14 -7.964445319892048E-14 4.704934862605875E-13 -2.955557038786589E-11 3.549435900081662E-11 7.979332399235285E-11

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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