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74598 (1999 RU1)
Classification: Main-belt Asteroid          SPK-ID: 2074598
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2218526493321685 6.0973e-08  
a 2.353633964768404 8.294e-09 au
q 1.831474034126358 1.4359e-07 au
i .4963901505085697 6.883e-06 deg
node 137.9213845810087 0.00056177 deg
peri 225.5058879300815 0.00056192 deg
M 149.2434511705509 1.1345e-05 deg
tp 2458053.736401223681
(2017-Oct-27.23640122)
4.086e-05 TDB
period 1318.884641273391
3.61
6.9714e-06
1.909e-08
d
yr
n .2729579136295178 1.4428e-09 deg/d
Q 2.87579389541045 1.0134e-08 au
  Orbit Determination Parameters
   # obs. used (total)      637  
   data-arc span      8095 days (22.16 yr)  
   first obs. used      1997-01-09  
   last obs. used      2019-03-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54586  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 06:24:03  

Additional Information
 Earth MOID = .828327 au 
 Jupiter MOID = 2.57847 au 
 T_jup = 3.522 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.4   n/a MPO333435  
diameter diameter 1.249 km 0.204 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.236   0.070 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74598 (1999 RU1)          Discovered 1999-Sep-05 by Korlevic, K. at Visnjan
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 RU1 = 1997 AW11 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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