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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 ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06198288619571136 4.4021e-08  
a 3.071902043007097 1.9937e-08 au
q 2.881496688271015 1.3965e-07 au
i 9.154583386048419 5.8169e-06 deg
node 308.2987822004458 2.2866e-05 deg
peri 142.9475278243247 5.4363e-05 deg
M 220.7727422489524 5.0461e-05 deg
tp 2459761.056074797993
(2022-Jun-30.55607480)
0.00027926 TDB
period 1966.570277616612
5.38
1.9145e-05
5.242e-08
d
yr
n .1830598194722553 1.7821e-09 deg/d
Q 3.262307397743179 2.1173e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1310  
   data-arc span      9080 days (24.86 yr)  
   first obs. used      1995-12-20  
   last obs. used      2020-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50871  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 22:44:29  

Additional Information
 Earth MOID = 1.90429 au 
 Jupiter MOID = 1.86357 au 
 T_jup = 3.208 
[ 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 MPO351259  
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. 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 0.146   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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