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3334 Somov (1981 YR)
Classification: Main-belt Asteroid          SPK-ID: 2003334
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02433437011217331 3.0519e-08  
a 2.850346528887039 1.1673e-08 au
q 2.780985141505153 8.6701e-08 au
i 3.259744985456724 3.4802e-06 deg
node 86.50288475265718 6.1429e-05 deg
peri 188.9105318471132 0.00010161 deg
M 210.361849724933 8.2408e-05 deg
tp 2459931.108550572375
(2022-Dec-17.60855057)
0.00040309 TDB
period 1757.700678086234
4.81
1.0797e-05
2.956e-08
d
yr
n .2048130290260593 1.2582e-09 deg/d
Q 2.919707916268924 1.1957e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3088  
   data-arc span      28569 days (78.22 yr)  
   first obs. used      1942-11-05  
   last obs. used      2021-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43666  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 01:09:46  

Additional Information
 Earth MOID = 1.76281 au 
 Jupiter MOID = 2.08811 au 
 T_jup = 3.303 
[ 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 11.84   n/a E2021B10  
rotation period rot_per 5.529 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.]

3334 Somov (1981 YR)          Discovered 1981-Dec-20 by Mrkos, A. at Klet
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1981 YR = 1942 VG = 1969 KF = 1970 QW = 1974 HT2 = 1976 YV = 1978 EV4 = 1980 TE10 = 1982 BS8 = 1984 MK 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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