Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1216310937480153 3.3766e-08  
a 2.548586060382755 1.1086e-08 au
q 2.238598750347455 8.8394e-08 au
i 3.181659545136988 4.7633e-06 deg
node 236.1300841998077 8.4284e-05 deg
peri 62.6991165902643 8.7658e-05 deg
M 13.34647022265116 2.4192e-05 deg
tp 2458945.405112193624
(2020-Apr-05.90511219)		 9.9854e-05 TDB
period 1486.097768129986
4.07		 9.6964e-06
2.655e-08		 d
yr
n .2422451656414247 1.5806e-09 deg/d
Q 2.858573370418055 1.2434e-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 = 1.22505 au 
 Jupiter MOID = 2.32263 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 14.2   n/a MPO473921  
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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Mar-29 04:22 UT
(server date/time)   		NASA Home Page
Site Manager:   Ryan S. Park
Webmaster:   Alan B. Chamberlin