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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1964526416956434 3.4583e-08  
a 2.239214071311834 6.4248e-09 au
q 1.799314551680568 7.8757e-08 au
i 4.255590790916458 3.8567e-06 deg
node 314.6947443601451 4.6861e-05 deg
peri 10.49212339036954 4.767e-05 deg
M 36.68634727565399 1.0259e-05 deg
tp 2458875.777783360399
(2020-Jan-27.27778336)
3.4623e-05 TDB
period 1223.888485078294
3.35
5.2674e-06
1.442e-08
d
yr
n .2941444456657097 1.2659e-09 deg/d
Q 2.679113590943101 7.6869e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3283  
   data-arc span      36934 days (101.12 yr)  
   first obs. used      1919-09-18  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41339  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:59:47  

Additional Information
 Earth MOID = .787476 au 
 Jupiter MOID = 2.64846 au 
 T_jup = 3.607 
[ 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 12.8   n/a MPO492792  
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. 2019-August); 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.]
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

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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2159-May-15 10:18 < 00:01 Juno 0.0435258442285791 0.0435202381980222 0.0435314514975098 7.58399191289071 7.58399187603533 2509752.929238902 0.276673448458606 462.153901130655 29.5393180812178 -52.9424693091577 176063.731436743 T 38 CATAB v2.0f-lin.ifort 2020-Nov-13 03:59:56 2020-Nov-13 03:59

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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