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

Significant website upgrade scheduled for September 27. More details available here.

JPL Small-Body Database Browser
Search: [ help ]  
12145 Behaim (4730 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2012145
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08769473069404492 4.0513e-08  
a 2.664273965684753 1.5461e-08 au
q 2.430631177768873 1.0996e-07 au
i 4.74720187014024 5.5503e-06 deg
node 25.94121730470014 5.1445e-05 deg
peri 290.8394705273341 6.0125e-05 deg
M 29.2445131331817 3.2897e-05 deg
tp 2459267.464668104275
(2021-Feb-21.96466810)
0.00014488 TDB
period 1588.425126823345
4.35
1.3827e-05
3.786e-08
d
yr
n .2266395777306518 1.9728e-09 deg/d
Q 2.897916753600633 1.6817e-08 au
  Orbit Determination Parameters
   # obs. used (total)      680  
   data-arc span      22202 days (60.79 yr)  
   first obs. used      1960-09-24  
   last obs. used      2021-07-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57299  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 21:43:36  

Additional Information
 Earth MOID = 1.42178 au 
 Jupiter MOID = 2.3325 au 
 T_jup = 3.374 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456901.5 (2014-Sep-01.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08587014560774792 4.0466e-08  
q 2.437008080540154 1.095e-07 au
tp 2457682.501841206431
(2016-Oct-21.00184121)
0.00014563 TDB
node 26.0695343046772 5.1487e-05 deg
peri 291.3186967714149 6.0483e-05 deg
i 4.744660126125285 5.5455e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      680  
   data-arc span      22202 days (60.79 yr)  
   first obs. used      1960-09-24  
   last obs. used      2021-07-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57299  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 21:43:36  

Additional Information
 Jupiter MOID = 2.3325 au 
 T_jup = 3.374 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.637536601963186E-15 -4.395605955419554E-15 1.35337334125088E-12 4.930887654150698E-15 2.967267584711087E-13 1.845005302823563E-16
q -4.395605955419554E-15 1.198986258013E-14 -3.385225241554336E-12 -1.360229590364855E-14 -7.63756780269835E-13 -4.345657408412722E-16
tp 1.35337334125088E-12 -3.385225241554336E-12 2.120853136499516E-8 2.996546533600637E-11 4.633573123827687E-9 1.032802606587315E-12
node 4.930887654150698E-15 -1.360229590364855E-14 2.996546533600637E-11 2.650894474448917E-9 -2.634702886385128E-9 -2.169914924859352E-11
peri 2.967267584711087E-13 -7.63756780269835E-13 4.633573123827687E-9 -2.634702886385128E-9 3.658193297871364E-9 2.187870133687355E-11
i 1.845005302823563E-16 -4.345657408412722E-16 1.032802606587315E-12 -2.169914924859352E-11 2.187870133687355E-11 3.075260907129824E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.33   n/a E2021B10  

12145 Behaim           Discovered 1960 Sept. 24 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Martin Behaim (1459-1507) was a German merchant, astronomer and cosmographer from Nürnberg. He traveled through Europe and became a Portuguese knight. He developed the earliest terrestrial globe, Erdapfel, or `Earth Apple', with a diameter of about 50 cm.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20101128/MPCPages.arcLast Updated: 2010-12-06

Alternate Designations
 4730 P-L = 1995 WG15 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Sep-23 02:54 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin