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208 Lacrimosa (A879 UB)
Classification: Main-belt Asteroid          SPK-ID: 2000208
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01191309218511254 3.4517e-08  
a 2.892842149621567 9.5721e-09 au
q 2.858379454416147 9.9102e-08 au
i 1.745232830829291 3.8562e-06 deg
node 4.233231703144623 0.00012752 deg
peri 108.9052003884553 0.00020968 deg
M 129.6969228285809 0.00016621 deg
tp 2458353.040357279297
(2018-Aug-22.54035728)
0.00082938 TDB
period 1797.154984837378
4.92
8.9199e-06
2.442e-08
d
yr
n .200316613223303 9.9424e-10 deg/d
Q 2.927304844826988 9.6862e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3189  
   data-arc span      43580 days (119.32 yr)  
   first obs. used      1901-02-22  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4402  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:09:22  

Additional Information
 Earth MOID = 1.87514 au 
 Jupiter MOID = 2.05531 au 
 T_jup = 3.289 
[ 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 9.2   n/a MPO473763 IRAS observations used: 5
diameter diameter 40.056 km 0.593 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 14.085 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Binzel, R.P. (1987) Icarus 72, 135-208.]
[Slivan, S.M.; Binzel, R.P. (1996) Icarus 124, 452-470.]
[Behrend, R. (2007) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Durech, J.; Kaasalainen, M.; Herald, D.; Dunham, D.; et al. (2011) Icarus 214, 652-670.]
[Stephens, R.D. (2014) Minor Planet Bull. 41, 171-175.]
geometric albedo albedo 0.206   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.841   0.016 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=.56, mean=1.91, max.=3.26) deg.
U-B UB 0.407   0.029 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=.56, mean=2.13, max.=3.26) deg.
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 4 color indices; used ground-based radiometric albedo
SMASSII spectral type spec_B Sk   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)

208 Lacrimosa (A879 UB)          Discovered 1879-Oct-21 by Palisa, J. at Pola
Reference: DISCOVERY.DBLast Updated: 2003-08-29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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