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 ]  
85028 (2729 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2085028
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2099139635172858 3.2917e-08  
a 2.557393322903575 9.2258e-09 au
q 2.020560754220244 8.6496e-08 au
i 4.272595079271008 4.9696e-06 deg
node 197.3073041927381 4.0347e-05 deg
peri 53.19181011487299 4.2588e-05 deg
M 55.40115938406448 1.5067e-05 deg
tp 2459166.614769539718
(2020-Nov-13.11476954)
6.182e-05 TDB
period 1493.807781024634
4.09
8.0833e-06
2.213e-08
d
yr
n .2409948619715105 1.3041e-09 deg/d
Q 3.094225891586906 1.1162e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1409  
   data-arc span      22233 days (60.87 yr)  
   first obs. used      1960-09-24  
   last obs. used      2021-08-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5061  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 01:53:38  

Additional Information
 Earth MOID = 1.01033 au 
 Jupiter MOID = 1.94888 au 
 T_jup = 3.402 
[ 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 15.05   n/a E2021B10  

85028 (2729 P-L)          Discovered 1960-Sep-24 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

[ show close-approach data ]
Alternate Designations
 2729 P-L = 2000 EK172 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Sep-17 05:07 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin