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1755 Lorbach (1936 VD)
Classification: Main-belt Asteroid          SPK-ID: 2001755
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 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04698489120437158 3.1036e-08  
a 3.090378961793204 1.3508e-08 au
q 2.945177842493072 9.5342e-08 au
i 10.70858888715335 4.3841e-06 deg
node 157.0866698478512 1.8918e-05 deg
peri 321.5788121832237 5.2981e-05 deg
M 62.98240388319503 4.8469e-05 deg
tp 2458653.337532422247
(2019-Jun-18.83753242)
0.00026737 TDB
period 1984.339761940047
5.43
1.301e-05
3.562e-08
d
yr
n .181420544457586 1.1895e-09 deg/d
Q 3.235580081093337 1.4143e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3102  
   data-arc span      35065 days (96.00 yr)  
   first obs. used      1924-08-06  
   last obs. used      2020-08-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42716  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:15:47  

Additional Information
 Earth MOID = 1.96788 au 
 Jupiter MOID = 1.79403 au 
 T_jup = 3.197 
[ 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 10.8   n/a MPO502170 IRAS observations used: 5
diameter diameter 24.878 km 0.265 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 7.9753 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Behrend, R. (2020) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Bonamico, R. (2020) Minor Planet Bull. 47, 222-223.]
[Brincat, S.M.; Hills, K.; Galdies, C. (2020) Minor Planet Bull. 47, 215-216.]
[Casalnuovo, G.B.; Chinaglia, B. (2020) Minor Planet Bull. 47, 186-187.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.140   0.024 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.915   0.013 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=4.94, mean=7.44, max.=9.93) deg.
U-B UB 0.360   0.113 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=4.94, mean=7.44, max.=9.93) deg.
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices

1755 Lorbach (1936 VD)          Discovered 1936-Nov-08 by Laugier, M. at Nice
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1936 VD = 1935 QA1 = 1936 UK = 1949 ED = 1956 NA = 1960 EA = 1965 AV = A924 PA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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