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 ]  
390489 (2014 AC28)
Classification: Main-belt Asteroid          SPK-ID: 2390489
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05236058661684639 9.2443e-08  
a 3.172852180561414 1.2087e-07 au
q 3.006719779138678 2.431e-07 au
i 12.47705995952367 8.9846e-06 deg
node 287.0952418533425 3.636e-05 deg
peri 305.6968305143144 0.000101 deg
M 249.7523576761683 9.5822e-05 deg
tp 2459232.678899026528
(2021-Jan-18.17889903)
0.00055948 TDB
period 2064.301774191811
5.65
0.00011796
3.23e-07
d
yr
n .1743931069094501 9.9654e-09 deg/d
Q 3.338984581984149 1.272e-07 au
  Orbit Determination Parameters
   # obs. used (total)      135  
   data-arc span      4079 days (11.17 yr)  
   first obs. used      2007-11-08  
   last obs. used      2019-01-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54313  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 15:46:53  

Additional Information
 Earth MOID = 2.01215 au 
 Jupiter MOID = 1.82715 au 
 T_jup = 3.163 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.7   n/a E2014D19  
diameter diameter 4.456 km 1.049 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.019   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

390489 (2014 AC28)          Discovered 2007-Nov-08 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2014-03-21

[ show close-approach data ]
Alternate Designations
 2014 AC28 = 2010 GD81 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jan-29 11:19 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin