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4278 Harvey (1982 SF)
Classification: Main-belt Asteroid          SPK-ID: 2004278
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1765978923389427 1.8095e-08  
a 2.267173985340468 6.3236e-09 au
q 1.86679583796366 4.2772e-08 au
i 5.476828697596903 5.8304e-07 deg
node 146.4216112687482 9.7399e-06 deg
peri 235.3290801988148 1.005e-05 deg
M 54.61218249476276 6.685e-06 deg
tp 2459011.347217906907
(2020-Jun-10.84721791)
2.2788e-05 TDB
period 1246.882992820213
3.41
5.2167e-06
1.428e-08
d
yr
n .2887199537349918 1.2079e-09 deg/d
Q 2.667552132717276 7.4403e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2402  
   data-arc span      24403 days (66.81 yr)  
   first obs. used      1954-05-28  
   last obs. used      2021-03-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46127  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 21:31:30  

Additional Information
 Earth MOID = .874203 au 
 Jupiter MOID = 2.79999 au 
 T_jup = 3.589 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457009.5 (2014-Dec-18.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1776012874508754 1.8116e-08  
q 1.864205058368695 4.2884e-08 au
tp 2456518.041243572696
(2013-Aug-13.54124357)
2.0115e-05 TDB
node 146.5056416335204 9.7469e-06 deg
peri 235.2293853697012 1.0046e-05 deg
i 5.475774000942424 5.8366e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      2402  
   data-arc span      24403 days (66.81 yr)  
   first obs. used      1954-05-28  
   last obs. used      2021-03-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46127  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 21:31:30  

Additional Information
 Jupiter MOID = 2.79999 au 
 T_jup = 3.589 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.281951607768894E-16 -7.715870303394696E-16 -2.426729595349304E-13 -7.537512820667807E-15 -4.546606424265291E-14 -3.10310077274121E-16
q -7.715870303394696E-16 1.838996074435972E-15 5.498774617157301E-13 1.834071023298234E-14 1.046997851985028E-13 7.040944258309967E-16
tp -2.426729595349304E-13 5.498774617157301E-13 4.046237585717139E-10 2.228299472389467E-11 6.577832385092482E-11 -1.013734097025428E-12
node -7.537512820667807E-15 1.834071023298234E-14 2.228299472389467E-11 9.500165500001912E-11 -8.796694779146332E-11 4.448746535369666E-12
peri -4.546606424265291E-14 1.046997851985028E-13 6.577832385092482E-11 -8.796694779146332E-11 1.009183177254633E-10 -4.781152962793418E-12
i -3.10310077274121E-16 7.040944258309967E-16 -1.013734097025428E-12 4.448746535369666E-12 -4.781152962793418E-12 3.406560115591986E-13

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.75   n/a MPCxxxxx  
rotation period rot_per 9.647 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.]

4278 Harvey (1982 SF)          Discovered 1982-Sep-22 by Bowell, E. at Flagstaff
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1982 SF = 1977 EQ2 = 1987 BQ1 = 1987 BU3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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