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JPL Small-Body Database Browser
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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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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 65 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1712357940562023 3.5885e-08  
a 2.645028761964762 9.0185e-09 au
q 2.192105161608232 9.6209e-08 au
i 10.8856660700943 4.4962e-06 deg
node 302.71529322125 2.3452e-05 deg
peri 115.3515926084626 2.7845e-05 deg
M 261.0916391039641 1.5554e-05 deg
tp 2459032.192525603338
6.8921e-05 TDB
period 1571.245421613597
n .2291176127216947 1.1718e-09 deg/d
Q 3.097952362321292 1.0563e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2337  
   data-arc span      31508 days (86.26 yr)  
   first obs. used      1933-07-27  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40536  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 02:03:16  

Additional Information
 Earth MOID = 1.23005 au 
 Jupiter MOID = 2.2771 au 
 T_jup = 3.347 
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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 10.24   n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 18
diameter diameter 41.128 km 0.457 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
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,]
[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] (  
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

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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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