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52849 (1998 RU72)
Classification: Main-belt Asteroid          SPK-ID: 2052849
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1195289747827066 2.8908e-08  
a 2.286765004625049 7.5982e-09 au
q 2.013430328053245 6.7947e-08 au
i 2.362937270475968 4.2199e-06 deg
node 27.55040155155233 7.8202e-05 deg
peri 76.44939493993351 8.0829e-05 deg
M 13.13484592468165 1.8532e-05 deg
tp 2458954.415676674750
(2020-Apr-14.91567667)
6.504e-05 TDB
period 1263.079635057992
3.46
6.2952e-06
1.724e-08
d
yr
n .2850176584340791 1.4205e-09 deg/d
Q 2.560099681196852 8.5064e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1227  
   data-arc span      7806 days (21.37 yr)  
   first obs. used      1998-09-14  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4928  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 10:36:49  

Additional Information
 Earth MOID = 1.03185 au 
 Jupiter MOID = 2.5498 au 
 T_jup = 3.591 
[ 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 15.5   n/a MPO502509  
diameter diameter 1.831 km 0.313 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.303   0.133 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

52849 (1998 RU72)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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