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(2004 FH)
Classification: Aten [NEO]          SPK-ID: 3177202
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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2885568348153915 9.5841e-08  
a .8184705639761939 2.721e-08 au
q .5822952886456549 9.7497e-08 au
i .02155575553088881 2.3472e-07 deg
node 287.8524673885535 0.0016564 deg
peri 39.89028735489087 0.0016558 deg
M 193.7908405185137 2.3388e-05 deg
tp 2459125.369242325478
(2020-Oct-02.86924233)
2.3659e-05 TDB
period 270.4599877492271
0.74
1.3487e-05
3.693e-08
d
yr
n 1.33106565224648 6.6376e-08 deg/d
Q 1.054645839306733 3.5061e-08 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A2 [EST] 1.668846203031422E-13 4.134E-14
ALN [SET] 1. n/a
NK [SET] 0. n/a
NM [SET] 2. n/a
R0 [SET] 1. n/a
  Orbit Determination Parameters
   # obs. used (total)      269  
   data-arc span      6184 days (16.93 yr)  
   first obs. used      2004-03-16  
   last obs. used      2021-02-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      1  
   norm. resid. RMS      .23149  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-21 05:17:51  

Additional Information
 Earth MOID = 3.41924E-6 au 
 Jupiter MOID = 4.22631 au 
 T_jup = 7.117 
 Nongravitational accels. using nonstandard g(r) = (1 au/ r)^2 
[ 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 26.41   n/a E2021D74  
rotation period rot_per 0.0504 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Behrend, R. (2004) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Pravec, P.; Wolf, M.; Sarounova, L. (2004) http://www.asu.cas.cz/~ppravec/neo.htm]

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