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70257 (1999 RG89)
Classification: Main-belt Asteroid          SPK-ID: 2070257
[ 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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1575411566985097 3.3913e-08  
a 2.430537537731515 1.1449e-08 au
q 2.047627842638144 8.2367e-08 au
i 6.180553481593135 6.7163e-06 deg
node 180.7078992103367 3.458e-05 deg
peri 99.21040088882853 4.0863e-05 deg
M 229.2598486853091 2.2329e-05 deg
tp 2459503.141576180635
(2021-Oct-15.64157618)		 8.7244e-05 TDB
period 1384.050466558514
3.79		 9.7795e-06
2.677e-08		 d
yr
n .2601061223548818 1.8379e-09 deg/d
Q 2.813447232824886 1.3253e-08 au
   Orbit Determination Parameters
   # obs. used (total)      793  
   data-arc span      8066 days (22.08 yr)  
   first obs. used      1998-03-20  
   last obs. used      2020-04-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57387  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 13:36:25  

Additional Information
 Earth MOID = 1.04249 au 
 Jupiter MOID = 2.33699 au 
 T_jup = 3.483 
[ 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 MPO468641  
diameter diameter 1.612 km 0.213 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.357   0.062 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

70257 (1999 RG89)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 RG89 = 1998 FS52 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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