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
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 ]  
6446 Lomberg (1990 QL)
Classification: Mars-crossing Asteroid          SPK-ID: 2006446
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.

[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2962824515873731 5.7023e-08  
a 2.316762606782616 1.388e-08 au
q 1.63034650189911 1.3265e-07 au
i 23.57597095016585 4.8738e-06 deg
node 157.0209411788034 1.5782e-05 deg
peri 253.6056690730869 1.7501e-05 deg
M 359.7366675930277 8.9356e-06 deg
tp 2458601.442155390581
3.1973e-05 TDB
period 1288.014432059686
n .2794999737885839 2.5118e-09 deg/d
Q 3.003178711666123 1.7993e-08 au
  Orbit Determination Parameters
   # obs. used (total)      704  
   data-arc span      11596 days (31.75 yr)  
   first obs. used      1988-01-26  
   last obs. used      2019-10-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54702  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 02:54:30  

Additional Information
 Earth MOID = .772832 au 
 Jupiter MOID = 2.79881 au 
 T_jup = 3.414 
[ 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 15.0   n/a MPO416783  
diameter diameter 1.951 km 0.253 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
geometric albedo albedo 0.464   0.121 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

6446 Lomberg           Discovered 1990 Aug. 18 by E. F. Helin at Palomar.
Named in honor of Jon Lomberg (b. 1948), graphic arts virtuoso, who has excelled in his renditions of space and astronomical subjects. One of the world's leading astronomical artists, he worked with Carl Sagan and on many television documentaries about space science, including the Cosmos series. He was also the design director for the Voyager Interstellar Record. His works can be found in museums and science centers all over the world. His technical research, artistic interpretation and precision in the planning of each painting is characteristic of this dedicated, accomplished artist in portraying space as it is, to the extent we know it.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19981208/MPCPages.arcLast Updated: 2009-11-17

Alternate Designations
 1990 QL = 1988 BW4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin