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117180 (2004 RH78)
Classification: Main-belt Asteroid          SPK-ID: 2117180
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03534403293060419 5.3954e-08  
a 2.715223941736275 2.1744e-08 au
q 2.619256977325583 1.4967e-07 au
i 6.698767587585101 5.0203e-06 deg
node 42.40365890342907 4.9164e-05 deg
peri 343.3632247806941 9.2084e-05 deg
M 250.9965042786056 8.1089e-05 deg
tp 2459891.317252649823
(2022-Nov-07.81725265)
0.00037045 TDB
period 1634.206405721477
4.47
1.963e-05
5.374e-08
d
yr
n .2202904105256309 2.6462e-09 deg/d
Q 2.811190906146967 2.2512e-08 au
  Orbit Determination Parameters
   # obs. used (total)      451  
   data-arc span      8065 days (22.08 yr)  
   first obs. used      1998-04-22  
   last obs. used      2020-05-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55519  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 16:51:30  

Additional Information
 Earth MOID = 1.62347 au 
 Jupiter MOID = 2.33454 au 
 T_jup = 3.350 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.71   n/a E2021B55  

117180 (2004 RH78)          Discovered 2004-Sep-08 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2004 RH78 = 2000 WO79 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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