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59942 (1999 RZ197)
Classification: Main-belt Asteroid          SPK-ID: 2059942
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06250985500918724 4.4329e-08  
a 3.068471418846691 1.9561e-08 au
q 2.87666171535475 1.4055e-07 au
i 9.15689495606394 5.7816e-06 deg
node 308.3010704611834 2.2657e-05 deg
peri 143.8979200047189 5.373e-05 deg
M 256.4424825340708 5.0052e-05 deg
tp 2459765.255774905939
(2022-Jul-04.75577491)
0.00027564 TDB
period 1963.276872034218
5.38
1.8773e-05
5.14e-08
d
yr
n .183366903124057 1.7534e-09 deg/d
Q 3.260281122338633 2.0784e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1342  
   data-arc span      9156 days (25.07 yr)  
   first obs. used      1995-12-20  
   last obs. used      2021-01-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50214  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 05:48:36  

Additional Information
 Earth MOID = 1.899 au 
 Jupiter MOID = 1.86328 au 
 T_jup = 3.209 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457439.5 (2016-Feb-21.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06286613745223885 4.2163e-08  
q 2.876908436591581 1.3435e-07 au
tp 2457773.578441875876
(2017-Jan-20.07844188)
0.00026869 TDB
node 308.5357766514394 2.2773e-05 deg
peri 139.0146216877163 5.4222e-05 deg
i 9.128238133994177 5.7649e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1342  
   data-arc span      9156 days (25.07 yr)  
   first obs. used      1995-12-20  
   last obs. used      2021-01-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50214  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 05:48:36  

Additional Information
 Jupiter MOID = 1.86328 au 
 T_jup = 3.209 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.777724164163865E-15 -5.611363486481394E-15 3.252401804364412E-12 -8.926548352665909E-15 6.887583854443249E-13 -5.415870128212908E-16
q -5.611363486481394E-15 1.804886149308504E-14 -7.445774676280575E-12 2.544908672305541E-14 -1.675841969998851E-12 3.866915840083066E-15
tp 3.252401804364412E-12 -7.445774676280575E-12 7.219281302091019E-8 -6.126114943127102E-11 1.321866932939277E-8 1.648845203058663E-11
node -8.926548352665909E-15 2.544908672305541E-14 -6.126114943127102E-11 5.186058811628153E-10 -5.234183627252726E-10 4.57622047512499E-11
peri 6.887583854443249E-13 -1.675841969998851E-12 1.321866932939277E-8 -5.234183627252726E-10 2.940060516984957E-9 -4.232689239661408E-11
i -5.415870128212908E-16 3.866915840083066E-15 1.648845203058663E-11 4.57622047512499E-11 -4.232689239661408E-11 3.323350081981999E-11

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 13.82   n/a E2021B10  
diameter diameter 6.930 km 0.176 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 33.379 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.146   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

59942 (1999 RZ197)          Discovered 1999-Sep-08 by LINEAR at Socorro
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 RZ197 = 2001 AQ29 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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