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3601 Velikhov (1979 SP9)
Classification: Outer Main-belt Asteroid          SPK-ID: 2003601
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 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1514719338137924 8.3751e-09  
a 3.240423641207758 1.4132e-08 au
q 2.749590405898088 2.8338e-08 au
i 2.274772547732206 2.6032e-07 deg
node 61.62712776951965 1.691e-05 deg
peri 359.7818921645979 2.0162e-05 deg
M 333.4369856362362 7.7321e-06 deg
tp 2459357.708480924992
(2021-May-23.20848092)
4.5777e-05 TDB
period 2130.596036954376
5.83
1.3937e-05
3.816e-08
d
yr
n .1689668026016839 1.1053e-09 deg/d
Q 3.731256876517428 1.6272e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2230  
   data-arc span      23916 days (65.48 yr)  
   first obs. used      1955-09-13  
   last obs. used      2021-03-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48405  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 15:18:49  

Additional Information
 Earth MOID = 1.76182 au 
 Jupiter MOID = 1.59951 au 
 T_jup = 3.165 
[ 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 12.77   n/a E2021B10  
diameter diameter 13.458 km 0.168 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 12.124 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:
[Erasmus, N.; Navarro-Meza, S.; McNeill, A.; Trilling, D.E.; et al. (2020) Ap. J. Suppl. Ser. 247, A13.]
geometric albedo albedo 0.117   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

3601 Velikhov (1979 SP9)          Discovered 1979-Sep-22 by Chernykh, N. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1979 SP9 = 1977 KH1 = 1987 BQ 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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