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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1964526380785804 3.5771e-08  
a 2.239214071885935 6.594e-09 au
q 1.799314560241263 8.1682e-08 au
i 4.255590649174045 3.9523e-06 deg
node 314.6947439664621 4.695e-05 deg
peri 10.4921235810383 4.7756e-05 deg
M 36.68634700588495 1.0302e-05 deg
tp 2458875.777784229565
(2020-Jan-27.27778423)
3.476e-05 TDB
period 1223.888485548974
3.35
5.4061e-06
1.48e-08
d
yr
n .2941444455525884 1.2993e-09 deg/d
Q 2.679113583530607 7.8894e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3137  
   data-arc span      36844 days (100.87 yr)  
   first obs. used      1919-09-18  
   last obs. used      2020-08-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42094  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 23:04:20  

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

[ hide close-approach data ]
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 36 CATAB v2.0f-lin.ifort 2020-Aug-24 23:04:32 2020-Aug-24 23:04

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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