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100602 (1997 RD9)
Classification: Main-belt Asteroid          SPK-ID: 2100602
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2248898118884633 5.2913e-08  
a 3.168392590030275 2.5487e-08 au
q 2.455853376469566 1.7473e-07 au
i 3.362435720847244 6.0415e-06 deg
node 316.2189187655432 0.00010518 deg
peri 131.4574129906408 0.00010637 deg
M 287.9467757004544 1.5339e-05 deg
tp 2459412.794773316513
(2021-Jul-17.29477332)
8.9875e-05 TDB
period 2059.9510963853
5.64
2.4856e-05
6.805e-08
d
yr
n .1747614303231325 2.1087e-09 deg/d
Q 3.880931803590985 3.1219e-08 au
  Orbit Determination Parameters
   # obs. used (total)      409  
   data-arc span      8445 days (23.12 yr)  
   first obs. used      1997-09-10  
   last obs. used      2020-10-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53531  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:05:17  

Additional Information
 Earth MOID = 1.47386 au 
 Jupiter MOID = 1.35884 au 
 T_jup = 3.160 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457266.5 (2015-Sep-01.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2181599319347474 5.2823e-08  
q 2.483730590975582 1.7375e-07 au
tp 2457344.065349024179
(2015-Nov-17.56534902)
8.8237e-05 TDB
node 316.9365537816437 0.00010491 deg
peri 130.421123107824 0.00010626 deg
i 3.359942265653473 6.0576e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      409  
   data-arc span      8445 days (23.12 yr)  
   first obs. used      1997-09-10  
   last obs. used      2020-10-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53531  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:05:17  

Additional Information
 Jupiter MOID = 1.35884 au 
 T_jup = 3.160 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.790293611456639E-15 -9.121530446480062E-15 -1.749508769418786E-13 -2.546059671176092E-14 1.470650747769025E-13 -2.242863076858102E-15
q -9.121530446480062E-15 3.019075541505505E-14 7.391639280786401E-13 1.059786885319032E-13 -4.718179045664095E-13 1.002553412699277E-14
tp -1.749508769418786E-13 7.391639280786401E-13 7.785727134246298E-9 -5.82519158279614E-11 1.526603933986759E-9 2.002484102199915E-12
node -2.546059671176092E-14 1.059786885319032E-13 -5.82519158279614E-11 1.100701630615739E-8 -1.099851074901087E-8 2.25063060081852E-10
peri 1.470650747769025E-13 -4.718179045664095E-13 1.526603933986759E-9 -1.099851074901087E-8 1.129185077776156E-8 -2.243805236975223E-10
i -2.242863076858102E-15 1.002553412699277E-14 2.002484102199915E-12 2.25063060081852E-10 -2.243805236975223E-10 3.669500583977864E-11

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 MPO474881  
diameter diameter 3.695 km 0.213 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.089   0.019 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

100602 (1997 RD9)          Discovered 1997-Sep-10 by Bickel, W. at Bergisch Gladbach
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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