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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 45 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06456241063003425 1.47e-08  
a 2.849643321818923 9.2476e-09 au
q 2.665663479526515 4.3641e-08 au
i 3.196028062205277 2.227e-07 deg
node 97.40014305302027 1.5057e-05 deg
peri 217.8382974305729 2.6984e-05 deg
M 45.25383713845518 1.8397e-05 deg
tp 2459175.629816247087
(2020-Nov-22.12981625)
9.001e-05 TDB
period 1757.050256484902
4.81
8.553e-06
2.342e-08
d
yr
n .204888846332833 9.9736e-10 deg/d
Q 3.033623164111331 9.8447e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3140  
   data-arc span      42291 days (115.79 yr)  
   first obs. used      1905-10-26  
   last obs. used      2021-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46621  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 07:34:07  

Additional Information
 Earth MOID = 1.65201 au 
 Jupiter MOID = 2.14073 au 
 T_jup = 3.301 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456098.5 (2012-Jun-20.0) TDB
Reference: JPL 45 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06170721010231123 1.4978e-08  
q 2.678246520013421 4.4546e-08 au
tp 2455673.661148453465
(2011-Apr-22.16114845)
0.00010122 TDB
node 97.44846396580677 1.5061e-05 deg
peri 220.9857123200224 2.7767e-05 deg
i 3.19486222688712 2.2572e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      3140  
   data-arc span      42291 days (115.79 yr)  
   first obs. used      1905-10-26  
   last obs. used      2021-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46621  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 07:34:07  

Additional Information
 Jupiter MOID = 2.14073 au 
 T_jup = 3.301 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.243395899574809E-16 -6.541080491597197E-16 3.037559736828706E-13 -7.103511114202521E-14 1.488390826868686E-13 8.814323300432837E-16
q -6.541080491597197E-16 1.984306098891306E-15 -1.233231492189533E-12 2.140530073379969E-13 -5.035235441596537E-13 -2.644204420823001E-15
tp 3.037559736828706E-13 -1.233231492189533E-12 1.024576429939326E-8 -1.462687491157648E-10 2.349330724522585E-9 4.553756317750591E-13
node -7.103511114202521E-14 2.140530073379969E-13 -1.462687491157648E-10 2.268311429137785E-10 -2.603308708488964E-10 -2.592052395772215E-12
peri 1.488390826868686E-13 -5.035235441596537E-13 2.349330724522585E-9 -2.603308708488964E-10 7.709832421310461E-10 2.714804390558634E-12
i 8.814323300432837E-16 -2.644204420823001E-15 4.553756317750591E-13 -2.592052395772215E-12 2.714804390558634E-12 5.094980289536825E-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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