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2845 Franklinken (1981 OF)
Classification: Main-belt Asteroid          SPK-ID: 2002845
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 46 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1621958471996922 1.4297e-08  
a 2.261477033246767 5.6256e-09 au
q 1.894674849916661 3.2215e-08 au
i 6.016836283862721 6.6006e-07 deg
node 144.336795808087 4.0589e-06 deg
peri 135.3302646496329 7.2054e-06 deg
M 228.0366063081232 5.25e-06 deg
tp 2459655.841961642204
(2022-Mar-17.34196164)
1.8936e-05 TDB
period 1242.186197286953
3.40
4.6351e-06
1.269e-08
d
yr
n .2898116246874041 1.0814e-09 deg/d
Q 2.628279216576873 6.5381e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2799  
   data-arc span      24343 days (66.65 yr)  
   first obs. used      1954-07-28  
   last obs. used      2021-03-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43765  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 20:34:02  

Additional Information
 Earth MOID = .881988 au 
 Jupiter MOID = 2.51345 au 
 T_jup = 3.595 
[ 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 13.35   n/a MPCxxxxx  
diameter diameter 5.385 km 0.073 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 114. h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Stephens, R.D. (2009) Minor Planet Bull. 36, 18-19.]
geometric albedo albedo 0.266   0.056 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

2845 Franklinken (1981 OF)          Discovered 1981-Jul-26 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
 1981 OF = 1971 SS = 1978 TF4 = 1981 RB 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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