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102177 (1999 RS236)
Classification: Main-belt Asteroid          SPK-ID: 2102177
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1093701985438294 4.5207e-08  
a 2.365489158679607 1.1485e-08 au
q 2.106775139741542 1.0952e-07 au
i 7.711659801794792 4.9083e-06 deg
node 72.50992284390396 3.2815e-05 deg
peri 342.8056717403996 3.9486e-05 deg
M 202.5308738942307 2.457e-05 deg
tp 2459581.763143654634
(2022-Jan-02.26314365)
9.3305e-05 TDB
period 1328.861961011426
3.64
9.6783e-06
2.65e-08
d
yr
n .2709084995750771 1.9731e-09 deg/d
Q 2.624203177617671 1.2742e-08 au
  Orbit Determination Parameters
   # obs. used (total)      690  
   data-arc span      7622 days (20.87 yr)  
   first obs. used      1999-09-08  
   last obs. used      2020-07-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57471  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:56:18  

Additional Information
 Earth MOID = 1.12013 au 
 Jupiter MOID = 2.67776 au 
 T_jup = 3.528 
[ 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 15.65   n/a E2021B55  
diameter diameter 2.309 km 0.961 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.191   0.097 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

102177 (1999 RS236)          Discovered 1999-Sep-08 by CSS at Catalina
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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