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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 ]

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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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06456241073441819 1.4765e-08  
a 2.849643321723161 9.2902e-09 au
q 2.665663479139479 4.3901e-08 au
i 3.19602806301474 2.2279e-07 deg
node 97.40014300311603 1.5066e-05 deg
peri 217.838297553999 2.7041e-05 deg
M 45.25383709827806 1.8416e-05 deg
tp 2459175.629816454313
(2020-Nov-22.12981645)
9.0105e-05 TDB
period 1757.050256396334
4.81
8.5923e-06
2.352e-08
d
yr
n .204888846343161 1.0019e-09 deg/d
Q 3.033623164306844 9.89e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3079  
   data-arc span      42248 days (115.67 yr)  
   first obs. used      1905-10-26  
   last obs. used      2021-06-27  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47046  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 13:20:08  

Additional Information
 Earth MOID = 1.65201 au 
 Jupiter MOID = 2.14073 au 
 T_jup = 3.301 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456058.5 (2012-May-11.0) TDB
Reference: JPL 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06151846385936122 1.5036e-08  
q 2.678436123945432 4.4688e-08 au
tp 2455673.152032218551
(2011-Apr-21.65203222)
0.00010183 TDB
node 97.45651086359041 1.5075e-05 deg
peri 220.8784113811501 2.7918e-05 deg
i 3.194475151172754 2.2582e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      3079  
   data-arc span      42248 days (115.67 yr)  
   first obs. used      1905-10-26  
   last obs. used      2021-06-27  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47046  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 13:20:08  

Additional Information
 Jupiter MOID = 2.14073 au 
 T_jup = 3.301 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.260945512648386E-16 -6.587271347891747E-16 3.140220740862376E-13 -7.174531262259902E-14 1.517708456264782E-13 8.899022629528459E-16
q -6.587271347891747E-16 1.997038272232462E-15 -1.26041233576358E-12 2.160548786672393E-13 -5.112376043709081E-13 -2.66900362239382E-15
tp 3.140220740862376E-13 -1.26041233576358E-12 1.036955368151833E-8 -1.510543115913463E-10 2.381190965232131E-9 5.101569898026587E-13
node -7.174531262259902E-14 2.160548786672393E-13 -1.510543115913463E-10 2.272691230353603E-10 -2.618067250163411E-10 -2.596779984985159E-12
peri 1.517708456264782E-13 -5.112376043709081E-13 2.381190965232131E-9 -2.618067250163411E-10 7.794308047451809E-10 2.731327108874315E-12
i 8.899022629528459E-16 -2.66900362239382E-15 5.101569898026587E-13 -2.596779984985159E-12 2.731327108874315E-12 5.099248178402328E-14

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 10.67   n/a E2021B10 IRAS observations used: 2
diameter diameter 21.441 km 0.132 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 15.602 h n/a LCDB (Rev. 2020-October); 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, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.232   0.045 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
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

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 ]
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