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154890 (2004 RH174)
Classification: Outer Main-belt Asteroid          SPK-ID: 2154890
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03979018764449488 5.2097e-08  
a 3.213501199805961 4.536e-08 au
q 3.085635384069872 1.7448e-07 au
i 4.800333502983763 5.9023e-06 deg
node 249.7999052249717 7.503e-05 deg
peri 157.3080941614485 0.00011704 deg
M 199.6076613062024 9.3372e-05 deg
tp 2459937.948126816347
(2022-Dec-24.44812682)
0.00055402 TDB
period 2104.098789270509
5.76
4.455e-05
1.22e-07
d
yr
n .1710946281779915 3.6226e-09 deg/d
Q 3.341367015542049 4.7165e-08 au
  Orbit Determination Parameters
   # obs. used (total)      289  
   data-arc span      7116 days (19.48 yr)  
   first obs. used      1999-10-13  
   last obs. used      2019-04-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55378  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 19:17:01  

Additional Information
 Earth MOID = 2.09606 au 
 Jupiter MOID = 1.87674 au 
 T_jup = 3.184 
[ 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 15.1   n/a MPO432989  
diameter diameter 4.685 km 0.149 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.088   0.023 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

154890 (2004 RH174)          Discovered 2004-Sep-10 by LINEAR at Socorro
Reference: 20070402/Numbers.arcLast Updated: 2007-04-04

[ show close-approach data ]
Alternate Designations
 2004 RH174 = 2005 UF113 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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