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11422 Alilienthal (1999 LD7)
Classification: Main-belt Asteroid          SPK-ID: 2011422
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1213359122078792 3.1316e-08  
a 2.547613381643516 8.9288e-09 au
q 2.238496388028801 8.0309e-08 au
i 3.181809823164225 3.7654e-06 deg
node 236.1190801071623 8.0084e-05 deg
peri 62.62200967640816 8.3268e-05 deg
M 61.90431727602638 2.16e-05 deg
tp 2458945.102203211192
(2020-Apr-05.60220321)
8.9497e-05 TDB
period 1485.247085982765
4.07
7.8082e-06
2.138e-08
d
yr
n .242383912681972 1.2743e-09 deg/d
Q 2.856730375258232 1.0012e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1980  
   data-arc span      15179 days (41.56 yr)  
   first obs. used      1979-07-24  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49378  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 22:45:36  

Additional Information
 Earth MOID = 1.22297 au 
 Jupiter MOID = 2.32301 au 
 T_jup = 3.429 
[ 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 14.23   n/a E2021B10  
diameter diameter 3.863 km 0.625 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.297   0.120 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

11422 Alilienthal           Discovered 1999 June 10 by Spacewatch at Kitt Peak.
Alfred Lilienthal (1889-1970) studied in England and was a businessman in Berlin during the 1930s. He spent the 1940s in Shanghai.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020526/MPCPages.arcLast Updated: 2003-10-02

Alternate Designations
 1999 LD7 = 1979 OQ = 1996 TK47 = 1999 JA119 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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