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3500 Kobayashi (A919 SD)
Classification: Main-belt Asteroid          SPK-ID: 2003500
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1964580889754302 1.9203e-08  
a 2.239591415098024 5.584e-09 au
q 1.799605565602087 4.4555e-08 au
i 4.255595270210629 5.053e-07 deg
node 314.6942181623394 1.382e-05 deg
peri 10.54130446276365 1.5349e-05 deg
M 95.46204672543806 4.6662e-06 deg
tp 2458875.876572642439
(2020-Jan-27.37657264)
1.5259e-05 TDB
period 1224.19786561711
3.35
4.5785e-06
1.254e-08
d
yr
n .2940701091800438 1.0998e-09 deg/d
Q 2.679577264593961 6.6811e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3542  
   data-arc span      37068 days (101.49 yr)  
   first obs. used      1919-09-18  
   last obs. used      2021-03-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .40568  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 15:11:50  

Additional Information
 Earth MOID = .785822 au 
 Jupiter MOID = 2.64809 au 
 T_jup = 3.606 
[ 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 12.90   n/a E2021B10  
diameter diameter 7.421 km 1.588 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 5.606 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Chang, C.-K.; Lin, H.-W.; Ip, W.-H.; Prince, T.A.; et al. (2016) Astrophys. J. Sup. Ser. 227, A20.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.334   0.243 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

3500 Kobayashi (A919 SD)          Discovered 1919-Sep-18 by Reinmuth, K. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A919 SD = 1929 RS = 1932 KD = 1949 PE = 1962 JV = 1966 SB = 1973 YZ = 1980 XG3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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