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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1217034779404117 3.3815e-08  
a 2.547796961629979 1.0881e-08 au
q 2.237721210313597 8.8535e-08 au
i 3.183051840668057 4.7661e-06 deg
node 236.1509189764625 8.4221e-05 deg
peri 63.04830571225757 8.7585e-05 deg
M 276.1243610747088 2.4172e-05 deg
tp 2458946.581983029269
(2020-Apr-07.08198303)
9.9714e-05 TDB
period 1485.407628328289
4.07
9.5156e-06
2.605e-08
d
yr
n .2423577159120639 1.5526e-09 deg/d
Q 2.857872712946361 1.2205e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1451  
   data-arc span      14536 days (39.80 yr)  
   first obs. used      1979-07-24  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52383  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 01:55:12  

Additional Information
 Earth MOID = 1.22349 au 
 Jupiter MOID = 2.32377 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 14.1   n/a MPO431631  
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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