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JPL Small-Body Database Browser
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1336 Zeelandia (1934 RW)
Classification: Main-belt Asteroid          SPK-ID: 2001336
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06521703608155711 3.8409e-08  
a 2.849078761432362 1.1276e-08 au
q 2.663270289048829 1.1072e-07 au
i 3.197494882160141 3.7617e-06 deg
node 97.42144770617395 7.9782e-05 deg
peri 219.7675518337162 8.5756e-05 deg
M 240.4189594353196 3.3248e-05 deg
tp 2459183.965171774838
0.00016324 TDB
period 1756.528132278032
n .204949749101438 1.2167e-09 deg/d
Q 3.034887233815894 1.2011e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2759  
   data-arc span      41568 days (113.81 yr)  
   first obs. used      1905-10-26  
   last obs. used      2019-08-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49014  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-23 19:16:54  

Additional Information
 Earth MOID = 1.64977 au 
 Jupiter MOID = 2.14886 au 
 T_jup = 3.301 
[ 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 10.6   n/a MPO473781 IRAS observations used: 2
diameter diameter 21.441 km 0.132 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
rotation period rot_per 15.602 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Slivan, S.M.; Binzel, R.P.; Boroumand, S.C.; Pan M.W.; et al. (2008) Icarus 195, 226-276.]
[Behrend, R. (2009) Observatoire de Geneve web site,]
geometric albedo albedo 0.232   0.045 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
B-V BV 0.810   0.022 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=3.21 deg.
U-B UB 0.366   0.034 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=3.21 deg.
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices
SMASSII spectral type spec_B S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

1336 Zeelandia (1934 RW)          Discovered 1934-Sep-09 by Van Gent, H. at Johannesburg (LS)
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1934 RW = 1929 QE = 1930 XC = 1935 YF = 1939 RP = A906 YO 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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