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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 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1408262372026063 9.4521e-09  
a 2.243871333711843 5.4708e-09 au
q 1.927875377018411 2.3071e-08 au
i 2.898838302842854 6.7097e-07 deg
node 182.8112811751452 6.1071e-06 deg
peri 64.76855179627033 9.9561e-06 deg
M 39.57906978723935 7.7118e-06 deg
tp 2459065.523415459632
(2020-Aug-04.02341546)
2.626e-05 TDB
period 1227.708753534141
3.36
4.4899e-06
1.229e-08
d
yr
n .2932291546864734 1.0724e-09 deg/d
Q 2.559867290405276 6.2412e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2837  
   data-arc span      26183 days (71.69 yr)  
   first obs. used      1949-02-01  
   last obs. used      2020-10-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4831  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 17:46:27  

Additional Information
 Earth MOID = .914901 au 
 Jupiter MOID = 2.45925 au 
 T_jup = 3.618 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456908.5 (2014-Sep-08.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1408366703759059 9.4419e-09  
q 1.927438011679245 2.3039e-08 au
tp 2456610.813325101229
(2013-Nov-14.31332510)
2.708e-05 TDB
node 182.8469542065673 6.1112e-06 deg
peri 64.7270252678281 9.9647e-06 deg
i 2.897630143749135 6.7101e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      2837  
   data-arc span      26183 days (71.69 yr)  
   first obs. used      1949-02-01  
   last obs. used      2020-10-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4831  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 17:46:27  

Additional Information
 Jupiter MOID = 2.45925 au 
 T_jup = 3.618 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.915038443748773E-17 -2.133689748957009E-16 3.319559553367276E-14 2.067004245298338E-14 -1.239347403481061E-14 -1.131792162903768E-15
q -2.133689748957009E-16 5.3079150037218E-16 -1.070890486241086E-13 -4.520139913590644E-14 2.093032893018666E-14 2.582414183459923E-15
tp 3.319559553367276E-14 -1.070890486241086E-13 7.333216466752126E-10 -4.140239181074223E-11 2.210726668956755E-10 -1.122121789600602E-13
node 2.067004245298338E-14 -4.520139913590644E-14 -4.140239181074223E-11 3.734637524680105E-11 -4.593206496784071E-11 -3.519532607946069E-12
peri -1.239347403481061E-14 2.093032893018666E-14 2.210726668956755E-10 -4.593206496784071E-11 9.929511031261496E-11 3.386636367517869E-12
i -1.131792162903768E-15 2.582414183459923E-15 -1.122121789600602E-13 -3.519532607946069E-12 3.386636367517869E-12 4.502589382679207E-13

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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