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3842 Harlansmith (1985 FC1)
Classification: Main-belt Asteroid          SPK-ID: 2003842
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 48 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1191117271177564 1.6111e-08  
a 2.354405699000877 6.7716e-09 au
q 2.073968369856994 3.8843e-08 au
i 4.058620848566149 7.6738e-07 deg
node 345.3201650688004 8.2229e-06 deg
peri 112.8407278931561 1.1803e-05 deg
M 34.08497093490355 1.0419e-05 deg
tp 2459075.565954076391
(2020-Aug-14.06595408)
3.8037e-05 TDB
period 1319.533369073318
3.61
5.6928e-06
1.559e-08
d
yr
n .2728237181700232 1.177e-09 deg/d
Q 2.63484302814476 7.5782e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2480  
   data-arc span      20244 days (55.43 yr)  
   first obs. used      1965-10-20  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4219  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 21:14:34  

Additional Information
 Earth MOID = 1.0946 au 
 Jupiter MOID = 2.49592 au 
 T_jup = 3.542 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.02   n/a MPCxxxxx  
diameter diameter 7.040 km 0.040 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 2.79400 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Han, X.L.; Li, B.; Zhao, H.; Liu. W.; et al. (2013) Minor Planet Bull. 40, 99-100.]
[Benishek, V. (2020) Minor Planet Bull. 47, 231-241.]
[Erasmus, N.; Navarro-Meza, S.; McNeill, A.; Trilling, D.E.; et al. (2020) Ap. J. Suppl. Ser. 247, A13.]
geometric albedo albedo 0.270   0.023 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

3842 Harlansmith (1985 FC1)          Discovered 1985-Mar-21 by Bowell, E. at Flagstaff (AM)
Discovered at the Anderson Mesa station, which is operated by the Lowell Observatory.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1985 FC1 = 1952 BW = 1965 UG2 = 1974 EQ = 1976 UO3 = 1980 YE 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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