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8014 (1990 MF)
Classification: Apollo [NEO, PHA]          SPK-ID: 2008014
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 169 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4562075551676871 8.1186e-09  
a 1.747321944882782 6.2461e-09 au
q .9501804723169596 1.3775e-08 au
i 1.866715178440549 5.3284e-07 deg
node 209.864768976047 5.835e-05 deg
peri 114.7125627518043 5.8265e-05 deg
M 137.6223159477786 1.2434e-06 deg
tp 2459073.989257523934
(2020-Aug-12.48925752)
2.5691e-06 TDB
period 843.6412836958797
2.31
4.5236e-06
1.238e-08
d
yr
n .4267216493044154 2.2881e-09 deg/d
Q 2.544463417448604 9.0956e-09 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A2 [EST] -2.337305941077515E-14 4.454E-15
ALN [SET] 1. n/a
NK [SET] 0. n/a
NM [SET] 2. n/a
R0 [SET] 1. n/a
  Orbit Determination Parameters
   # obs. used (total)      1244  
   # delay obs. used      9  
   # Doppler obs. used      12  
   data-arc span      11174 days (30.59 yr)  
   first obs. used      1990-06-14  
   last obs. used      2021-01-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .27448  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 20:13:38  

Additional Information
 Earth MOID = .0168401 au 
 Jupiter MOID = 2.81581 au 
 T_jup = 4.009 
 Nongravitational accels. using nonstandard g(r) = (1 au/ r)^2 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458693.5 (2019-Jul-29.0) TDB
Reference: JPL 169 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4559800425090569 8.0966e-09  
q .9501304481531127 1.3792e-08 au
tp 2459074.085232094111
(2020-Aug-12.58523209)
2.5659e-06 TDB
node 210.2390521283102 5.8335e-05 deg
peri 114.4025994284585 5.8257e-05 deg
i 1.867004780776282 5.4287e-07 deg

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A2 [EST] -2.337305941077515E-14 4.454E-15
ALN [SET] 1. n/a
NK [SET] 0. n/a
NM [SET] 2. n/a
R0 [SET] 1. n/a
  Orbit Determination Parameters
   # obs. used (total)      1244  
   # delay obs. used      9  
   # Doppler obs. used      12  
   data-arc span      11174 days (30.59 yr)  
   first obs. used      1990-06-14  
   last obs. used      2021-01-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .27448  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 20:13:38  

Additional Information
 Jupiter MOID = 2.81581 au 
 T_jup = 4.009 
 Nongravitational accels. using nonstandard g(r) = (1 au/ r)^2 
Orbit Covariance (7×7)
  e q tp node peri i A2
e 6.555436767037681E-17 -1.088145937407332E-16 2.889584552263034E-15 -1.956946657295343E-13 2.049713846598238E-13 -2.546482239609886E-15 8.44790535834541E-24
q -1.088145937407332E-16 1.902281093754085E-16 -5.941375267642003E-15 3.424415234123629E-13 -3.597699323055731E-13 4.157412599092122E-15 -1.455239687538237E-24
tp 2.889584552263034E-15 -5.941375267642003E-15 6.583690441135097E-12 2.18488327762799E-11 -1.391082458594834E-11 5.546063561465932E-13 -4.877236781127824E-21
node -1.956946657295343E-13 3.424415234123629E-13 2.18488327762799E-11 3.402935970877995E-9 -3.393358505510961E-9 2.817789823937729E-11 -3.426370132327467E-20
peri 2.049713846598238E-13 -3.597699323055731E-13 -1.391082458594834E-11 -3.393358505510961E-9 3.39392179903183E-9 -2.773520394972831E-11 2.857658851631938E-20
i -2.546482239609886E-15 4.157412599092122E-15 5.546063561465932E-13 2.817789823937729E-11 -2.773520394972831E-11 2.947041214062581E-13 -9.074324094927051E-22
A2 8.44790535834541E-24 -1.455239687538237E-24 -4.877236781127824E-21 -3.426370132327467E-20 2.857658851631938E-20 -9.074324094927051E-22 1.983626819691297E-29

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 18.95   n/a E2021B10  
diameter diameter 0.7 km n/a Hazards due to Comets and Asteroids (1994), Ed. T. Gehrels, pp.540-543 based on assumed medium albedo (0.15)
rotation period rot_per 50.09 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:
[Warner, B.D.; Stephens, R.D. (2020) Minor Planet Bull. 47, 290-304.]

8014 (1990 MF)          Discovered 1990-Jun-26 by Helin, E. F. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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