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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03524898265333971 5.3772e-08  
a 2.714989167100454 2.2028e-08 au
q 2.619288561045325 1.4887e-07 au
i 6.698993144874263 5.0212e-06 deg
node 42.4083798360863 4.9269e-05 deg
peri 343.8854703872635 9.2559e-05 deg
M 163.1917545065934 8.1142e-05 deg
tp 2458259.793272185615
(2018-May-21.29327219)
0.00036508 TDB
period 1633.994455292196
4.47
1.9886e-05
5.444e-08
d
yr
n .2203189850700098 2.6813e-09 deg/d
Q 2.810689773155583 2.2804e-08 au
  Orbit Determination Parameters
   # obs. used (total)      447  
   data-arc span      8037 days (22.00 yr)  
   first obs. used      1998-04-22  
   last obs. used      2020-04-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5547  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 20:09:34  

Additional Information
 Earth MOID = 1.62433 au 
 Jupiter MOID = 2.33635 au 
 T_jup = 3.350 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457331.5 (2015-Nov-05.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0340678978646639 5.3391e-08  
q 2.624054542326435 1.4744e-07 au
tp 2456630.489862198007
(2013-Dec-03.98986220)
0.00037384 TDB
node 42.42870550547117 4.9279e-05 deg
peri 345.1740095858644 9.5338e-05 deg
i 6.697569847878318 5.0199e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      447  
   data-arc span      8037 days (22.00 yr)  
   first obs. used      1998-04-22  
   last obs. used      2020-04-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5547  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 20:09:34  

Additional Information
 Jupiter MOID = 2.33635 au 
 T_jup = 3.350 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.850567159299547E-15 -7.790228986044098E-15 -4.077332991377855E-12 1.698695721906723E-14 -1.017690107846379E-12 1.653249898618516E-15
q -7.790228986044098E-15 2.173724439262808E-14 1.32859849840565E-11 -4.559105668486793E-14 3.278029888872993E-12 -4.780227622338665E-15
tp -4.077332991377855E-12 1.32859849840565E-11 1.397584315411914E-7 1.119335972067367E-10 3.05413406647304E-8 -3.283762774499509E-11
node 1.698695721906723E-14 -4.559105668486793E-14 1.119335972067367E-10 2.428449958794016E-9 -2.387558786741201E-9 -8.719545991212321E-11
peri -1.017690107846379E-12 3.278029888872993E-12 3.05413406647304E-8 -2.387558786741201E-9 9.089373984897262E-9 7.937619576839212E-11
i 1.653249898618516E-15 -4.780227622338665E-15 -3.283762774499509E-11 -8.719545991212321E-11 7.937619576839212E-11 2.519933375354906E-11

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 15.6   n/a MPO422404  

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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