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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 67 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1712357937397634 3.5526e-08  
a 2.645028761846049 8.9337e-09 au
q 2.192105162346837 9.5411e-08 au
i 10.88566621199003 4.4714e-06 deg
node 302.7152926204272 2.3337e-05 deg
peri 115.3515931394564 2.7762e-05 deg
M 261.0916392365722 1.5531e-05 deg
tp 2459032.192524995498
(2020-Jul-01.69252500)
6.8804e-05 TDB
period 1571.245421507817
4.30
7.9604e-06
2.179e-08
d
yr
n .2291176127371194 1.1608e-09 deg/d
Q 3.097952361345262 1.0463e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2402  
   data-arc span      31544 days (86.36 yr)  
   first obs. used      1933-07-27  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40046  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 20:57:14  

Additional Information
 Earth MOID = 1.23005 au 
 Jupiter MOID = 2.2771 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-January); 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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