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893 Leopoldina (A918 KD)
Classification: Main-belt Asteroid          SPK-ID: 2000893
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 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1480002024893203 3.3775e-08  
a 3.054785119710784 1.3569e-08 au
q 2.602676303432225 1.048e-07 au
i 17.02491034130878 3.6901e-06 deg
node 144.9359504610197 1.3186e-05 deg
peri 222.398788404378 1.8805e-05 deg
M 291.9849459107785 1.5747e-05 deg
tp 2459368.944411419014
(2021-Jun-03.44441142)
8.6501e-05 TDB
period 1950.156327698416
5.34
1.2993e-05
3.557e-08
d
yr
n .1846005855463258 1.2299e-09 deg/d
Q 3.506893935989342 1.5577e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3148  
   data-arc span      37272 days (102.05 yr)  
   first obs. used      1918-05-31  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40016  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:22:27  

Additional Information
 Earth MOID = 1.62335 au 
 Jupiter MOID = 1.99047 au 
 T_jup = 3.152 
[ 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 9.6   n/a MPO492760 IRAS observations used: 21
diameter diameter 85.992 km 0.577 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 14.115 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Warner, B.D. (2011) Minor Planet Bull. 38, 89-92.]
geometric albedo albedo 0.039   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
B-V BV 0.670   0.031 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=7.36 deg.
U-B UB 0.226   0.044 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=7.36 deg.
Tholen spectral type spec_T XF   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices

893 Leopoldina (A918 KD)          Discovered 1918-May-31 by Wolf, M. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A918 KD = 1935 OL 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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