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5630 Billschaefer (1993 FZ)
Classification: Main-belt Asteroid          SPK-ID: 2005630
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 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1408262390995958 2.736e-08  
a 2.243871335501481 5.7187e-09 au
q 1.92787537429942 6.2144e-08 au
i 2.898835307592218 3.4943e-06 deg
node 182.8112712180114 5.3388e-05 deg
peri 64.76854840588103 5.4935e-05 deg
M 39.57907991773549 1.2126e-05 deg
tp 2459065.523380750101
(2020-Aug-04.02338075)
4.1427e-05 TDB
period 1227.708755002911
3.36
4.6933e-06
1.285e-08
d
yr
n .2932291543356686 1.121e-09 deg/d
Q 2.559867296703542 6.524e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2802  
   data-arc span      26183 days (71.69 yr)  
   first obs. used      1949-02-01  
   last obs. used      2020-10-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48256  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:42:00  

Additional Information
 Earth MOID = .914901 au 
 Jupiter MOID = 2.45925 au 
 T_jup = 3.618 
[ 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 13.73   n/a E2021B10  
diameter diameter 4.785 km 0.049 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 69. 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:
[Brinsfield, J.W. (2011) Minor Planet Bull. 38, 73-74.]
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.308   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

5630 Billschaefer (1993 FZ)          Discovered 1993-Mar-21 by Child, J. B. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1993 FZ = 1949 CK = 1973 GR = 1983 EV1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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