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JPL Small-Body Database Browser
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59931 (1999 RZ179)
Classification: Main-belt Asteroid          SPK-ID: 2059931
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05106364657755734 4.1604e-08  
a 3.074349952727568 2.1161e-08 au
q 2.917362433285757 1.2501e-07 au
i 10.68018598297994 4.9266e-06 deg
node 124.9014700215615 2.7801e-05 deg
peri 344.6784332663761 6.5144e-05 deg
M 192.5887081471045 5.8626e-05 deg
tp 2459916.110208765024
(2022-Dec-02.61020877)
0.00032163 TDB
period 1968.921400146926
5.39
2.0328e-05
5.566e-08
d
yr
n .1828412246284366 1.8877e-09 deg/d
Q 3.231337472169379 2.2241e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1261  
   data-arc span      7184 days (19.67 yr)  
   first obs. used      1999-09-09  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50872  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 05:16:13  

Additional Information
 Earth MOID = 1.93517 au 
 Jupiter MOID = 1.84116 au 
 T_jup = 3.201 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.8   n/a MPO474479  
diameter diameter 6.731 km 0.152 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 7.529 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.155   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

59931 (1999 RZ179)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 RZ179 = 2001 BY54 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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