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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 81 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1717462609976196 1.6716e-08  
a 2.645408516765097 6.4497e-09 au
q 2.191069495199433 4.5049e-08 au
i 10.88638247841441 6.1927e-07 deg
node 302.7143586737832 5.6989e-06 deg
peri 115.4036602501551 9.2858e-06 deg
M 83.42375557799328 5.9118e-06 deg
tp 2459032.312710624966
(2020-Jul-01.81271063)
2.5632e-05 TDB
period 1571.583816463876
4.30
5.7474e-06
1.574e-08
d
yr
n .2290682789098795 8.3772e-10 deg/d
Q 3.099747538330761 7.5574e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3185  
   data-arc span      32104 days (87.90 yr)  
   first obs. used      1933-07-27  
   last obs. used      2021-06-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .36792  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 12:12:00  

Additional Information
 Earth MOID = 1.22899 au 
 Jupiter MOID = 2.27617 au 
 T_jup = 3.347 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 10.28   n/a E2021B10 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. 2020-October); 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

Alternate Designations
 1933 OP = 1925 WK = 1931 DW = 1933 QP = 1950 RL 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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