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134439 (1998 RW74)
Classification: Main-belt Asteroid          SPK-ID: 2134439
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1951485830606209 6.4546e-08  
a 2.516030207887491 8.2542e-09 au
q 2.025030477880527 1.6199e-07 au
i 1.503177375124732 4.0506e-06 deg
node 318.5743834877376 0.00015509 deg
peri 30.3086627719494 0.00015528 deg
M 217.477564019917 9.5564e-06 deg
tp 2459777.602478236812
(2022-Jul-17.10247824)
4.0141e-05 TDB
period 1457.713592506135
3.99
7.1733e-06
1.964e-08
d
yr
n .2469620931372944 1.2153e-09 deg/d
Q 3.007029937894454 9.865e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1177  
   data-arc span      9326 days (25.53 yr)  
   first obs. used      1994-10-09  
   last obs. used      2020-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54849  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 22:19:44  

Additional Information
 Earth MOID = 1.01703 au 
 Jupiter MOID = 2.41947 au 
 T_jup = 3.432 
[ 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 15.7   n/a MPO310095  
diameter diameter 2.025 km 0.430 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.272   0.144 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

134439 (1998 RW74)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20060907/Numbers.arcLast Updated: 2006-09-10

[ show close-approach data ]
Alternate Designations
 1998 RW74 = 2000 CD73 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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