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1284 Latvia (1933 OP)
Classification: Main-belt Asteroid          SPK-ID: 2001284
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 70 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1714614355403613 3.5329e-08  
a 2.644811043495008 8.6693e-09 au
q 2.191327945244353 9.5025e-08 au
i 10.8867497940302 4.443e-06 deg
node 302.7150680775392 2.3276e-05 deg
peri 115.4192325795361 2.7669e-05 deg
M 352.7067500849902 1.5585e-05 deg
tp 2459032.327974114986
(2020-Jul-01.82797412)
6.8086e-05 TDB
period 1571.051426307713
4.30
7.7245e-06
2.115e-08
d
yr
n .2291459044380695 1.1267e-09 deg/d
Q 3.098294141745663 1.0156e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2489  
   data-arc span      31787 days (87.03 yr)  
   first obs. used      1933-07-27  
   last obs. used      2020-08-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .39635  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:31:25  

Additional Information
 Earth MOID = 1.22956 au 
 Jupiter MOID = 2.27625 au 
 T_jup = 3.347 
[ 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 10.3   n/a MPO502165 IRAS observations used: 18
diameter diameter 41.128 km 0.457 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 9.55 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Behrend, R. (2004) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Brinsfield, J. (2008) Minor Planet Bull. 35, 119-122.]
[Garceran, A.C.; Aznar, A.; Mansego, E.A.; Rodriguez, P.B.; et al. (2016) Minor Planet Bull. 43, 92-97.]
geometric albedo albedo 0.069   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
B-V BV 0.768   0.021 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=19.80 deg.
U-B UB 0.353   0.033 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=19.80 deg.
Tholen spectral type spec_T T   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices
SMASSII spectral type spec_B L   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)

1284 Latvia (1933 OP)          Discovered 1933-Jul-27 by Reinmuth, K. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1933 OP = 1925 WK = 1931 DW = 1933 QP = 1950 RL 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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