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(2021 FH)
Classification: Apollo [NEO]          SPK-ID: 54132049
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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6030807170399245 0.00032421  
a 2.30341243475428 0.0017952 au
q .9142688119639907 3.4257e-05 au
i 3.500411566887893 0.0013526 deg
node 3.017248308182373 2.3374e-05 deg
peri 219.0039643689372 0.0016334 deg
M 324.5707761513344 0.042153 deg
tp 2459326.165228400174
(2021-Apr-21.66522840)
0.0026072 TDB
period 1276.897355056409
3.50
1.4927
0.004087
d
yr
n .2819333900054138 0.00032959 deg/d
Q 3.69255605754457 0.0028778 au
  Orbit Determination Parameters
   # obs. used (total)      91  
   data-arc span      5 days  
   first obs. used      2021-03-18  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      7  
   norm. resid. RMS      .30627  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:26:48  

Additional Information
 Earth MOID = .000123958 au 
 Jupiter MOID = 1.31196 au 
 T_jup = 3.318 
[ hide covariance matrix ]
Orbital Elements at Epoch 2459292.5 (2021-Mar-19.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .603354223178756 0.00032395  
q .914191461536603 3.4172e-05 au
tp 2459326.164503797518
(2021-Apr-21.66450380)
0.002606 TDB
node 3.010095490292465 2.9483e-05 deg
peri 219.0173880343634 0.0016177 deg
i 3.502013681100753 0.001351 deg
  Orbit Determination Parameters
   # obs. used (total)      91  
   data-arc span      5 days  
   first obs. used      2021-03-18  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      7  
   norm. resid. RMS      .30627  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:26:48  

Additional Information
 Jupiter MOID = 1.31196 au 
 T_jup = 3.318 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.049460853043381E-7 -1.106929888784224E-8 -8.440957548597548E-7 7.634945697970755E-9 5.232089285167584E-7 4.376535921840137E-7
q -1.106929888784224E-8 1.167712902169287E-9 8.901436020203638E-8 -7.989211956298825E-10 -5.522356408797553E-8 -4.616332032946721E-8
tp -8.440957548597548E-7 8.901436020203638E-8 6.791063046477765E-6 -6.204241027917384E-8 -4.204287003619135E-6 -3.51996562316288E-6
node 7.634945697970755E-9 -7.989211956298825E-10 -6.204241027917384E-8 8.692632342034752E-10 3.65979578184592E-8 3.174744064872266E-8
peri 5.232089285167584E-7 -5.522356408797553E-8 -4.204287003619135E-6 3.65979578184592E-8 2.616948517080095E-6 2.182267502488219E-6
i 4.376535921840137E-7 -4.616332032946721E-8 -3.51996562316288E-6 3.174744064872266E-8 2.182267502488219E-6 1.825229977848331E-6

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 26.74   .29101 MPO606250 autocmod 2.9c

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