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JPL Small-Body Database Browser
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2203 van Rhijn (1935 SQ1)
Classification: Main-belt Asteroid          SPK-ID: 2002203
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1883416249308985 3.9176e-08  
a 3.104014061498135 1.4372e-08 au
q 2.519399009347218 1.2416e-07 au
i 1.645284768206661 4.1361e-06 deg
node 50.18395027964428 0.00014237 deg
peri 328.5784499723626 0.00014267 deg
M 150.5079154190247 9.8535e-06 deg
tp 2458165.395571425953
(2018-Feb-15.89557143)
5.2704e-05 TDB
period 1997.486932495614
5.47
1.3873e-05
3.798e-08
d
yr
n .1802264606308209 1.2517e-09 deg/d
Q 3.688629113649051 1.7079e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2612  
   data-arc span      30782 days (84.28 yr)  
   first obs. used      1935-09-28  
   last obs. used      2020-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4697  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 18:27:02  

Additional Information
 Earth MOID = 1.52179 au 
 Jupiter MOID = 1.77249 au 
 T_jup = 3.193 
[ 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 11.6   n/a MPO337265  
diameter diameter 21.501 km 0.229 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 30.55 h n/a LCDB (Rev. 2019-January); 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:
[Behrend, R. (2012) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Durech, J.; Hanus, J. (2018) Astron. Astrophys. 620, A91.]
geometric albedo albedo 0.096   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

2203 van Rhijn (1935 SQ1)          Discovered 1935-Sep-28 by Van Gent, H. at Johannesburg (LS)
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1935 SQ1 = 1951 PP = 1957 UX = 1974 XQ 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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