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3645 Fabini (1981 QZ)
Classification: Main-belt Asteroid          SPK-ID: 2003645
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08263290829428076 3.7288e-08  
a 2.699665718393366 1.0743e-08 au
q 2.476584488660153 1.0115e-07 au
i 7.133107409028058 3.5738e-06 deg
node 261.9154269132014 3.2021e-05 deg
peri 109.2573689078901 3.8554e-05 deg
M 235.7485018202308 2.2868e-05 deg
tp 2459559.694057622455
(2021-Dec-11.19405762)
0.00010416 TDB
period 1620.180550682981
4.44
9.6712e-06
2.648e-08
d
yr
n .2221974580846829 1.3263e-09 deg/d
Q 2.922746948126578 1.1631e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2349  
   data-arc span      22290 days (61.03 yr)  
   first obs. used      1959-09-30  
   last obs. used      2020-10-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43227  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:58:31  

Additional Information
 Earth MOID = 1.48825 au 
 Jupiter MOID = 2.49148 au 
 T_jup = 3.352 
[ 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 12.4   n/a MPO435733  
diameter diameter 19.928 km 0.116 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 4.633 h n/a LCDB (Rev. 2019-August); 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.059   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
SMASSII spectral type spec_B C   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

3645 Fabini (1981 QZ)          Discovered 1981-Aug-28 by Mrkos, A. at Klet
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1981 QZ = 1959 SN = 1973 YD3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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