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52839 (1998 RZ55)
Classification: Main-belt Asteroid          SPK-ID: 2052839
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09087083656000745 1.2079e-08  
a 2.165793416912216 5.1919e-09 au
q 1.968985957301246 2.5863e-08 au
i 4.012913086533341 5.3095e-07 deg
node 320.9766644854689 6.5009e-06 deg
peri 268.0040119625827 1.3034e-05 deg
M 115.5921474889359 1.1834e-05 deg
tp 2458826.690957979312
(2019-Dec-09.19095798)
3.8454e-05 TDB
period 1164.190284987383
3.19
4.1863e-06
1.146e-08
d
yr
n .3092277994777302 1.1119e-09 deg/d
Q 2.362600876523187 5.6637e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2581  
   data-arc span      8223 days (22.51 yr)  
   first obs. used      1998-08-02  
   last obs. used      2021-02-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4433  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 10:48:29  

Additional Information
 Earth MOID = .962449 au 
 Jupiter MOID = 2.63031 au 
 T_jup = 3.684 
[ 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 14.11   n/a E2021B10  
diameter diameter 3.732 km 0.056 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 49.2 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Behrend, R. (2016) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.383   0.057 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

52839 (1998 RZ55)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 RZ55 = 1999 XZ33 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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