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(2021 GM2)
Classification: Apollo [NEO]          SPK-ID: 54134950
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 2459309.5 (2021-Apr-05.0) TDB
Reference: JPL 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5640949781041248 0.0056672  
a 2.009627636245282 0.024426 au
q .8760067787800557 0.00074295 au
i 6.527034645951781 0.048848 deg
node 192.5067930484778 0.010393 deg
peri 59.53663839306708 0.00941 deg
M 345.6665949996458 0.29549 deg
tp 2459350.930358391904
(2021-May-16.43035839)
0.098846 TDB
period 1040.571240449625
2.85
18.971
0.05194
d
yr
n .3459638187236905 0.0063075 deg/d
Q 3.143248493710509 0.038205 au
  Orbit Determination Parameters
   # obs. used (total)      18  
   data-arc span      2 days  
   first obs. used      2021-04-04  
   last obs. used      2021-04-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      9  
   norm. resid. RMS      .71598  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:27:06  

Additional Information
 Earth MOID = .0189325 au 
 Jupiter MOID = 1.94482 au 
 T_jup = 3.609 
[ hide covariance matrix ]
Orbit Covariance (6×6)
  e q tp node peri i
e 3.211741000070363E-5 -4.203162068493693E-6 -.0005595566640177595 5.888625074682055E-5 -2.202044787848323E-5 .000276828009370425
q -4.203162068493693E-6 5.519728971841889E-7 7.302452263446805E-5 -7.69744477707837E-6 2.507203943615009E-6 -3.621873614309379E-5
tp -.0005595566640177595 7.302452263446805E-5 .009770482527108335 -.00102688059481829 .0004236211374614645 -.00482395629398936
node 5.888625074682055E-5 -7.69744477707837E-6 -.00102688059481829 .0001080222897670831 -4.213604022051526E-5 .0005076211658555945
peri -2.202044787848323E-5 2.507203943615009E-6 .0004236211374614645 -4.213604022051526E-5 8.854844093304369E-5 -.0001916548659515433
i .000276828009370425 -3.621873614309379E-5 -.00482395629398936 .0005076211658555945 -.0001916548659515433 .002386132046025184

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 25.64   .29263 E2021G71 autocmod 2.9c

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