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 ]  
90447 Emans (2004 BB109)
Classification: Main-belt Asteroid          SPK-ID: 2090447
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .11091004869716 4.8474e-08  
a 2.320170483618468 8.2103e-09 au
q 2.06284026229463 1.1326e-07 au
i 8.083538270955106 5.3009e-06 deg
node 35.71383330808321 2.3585e-05 deg
peri 351.854194219607 3.0041e-05 deg
M 74.99734168590518 1.6577e-05 deg
tp 2459127.580904200330
(2020-Oct-05.08090420)
5.95e-05 TDB
period 1290.857413231165
3.53
6.8518e-06
1.876e-08
d
yr
n .2788844037381933 1.4803e-09 deg/d
Q 2.577500704942306 9.1209e-09 au
  Orbit Determination Parameters
   # obs. used (total)      874  
   data-arc span      7766 days (21.26 yr)  
   first obs. used      1999-10-15  
   last obs. used      2021-01-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4794  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 23:38:13  

Additional Information
 Earth MOID = 1.06733 au 
 Jupiter MOID = 2.85708 au 
 T_jup = 3.557 
[ 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 16.13   n/a MPCxxxxx  

90447 Emans           Discovered 2004 Jan. 28 by the Catalina Sky Survey.
Mike Emans (b. 1944) is a Seattle-area retired computer operations manager formerly with the Department of Information Services for the state of Washington. He is also a semi-professional guitarist with a group called "Common Threads" that played in the Washington area.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20090209/MPCPages.arcLast Updated: 2009-02-11

Alternate Designations
 2004 BB109 = 1999 XX185 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Sep-26 15:57 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin