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
JPL Small-Body Database Browser
Search: [ help ]  
20283 Elizaheller (1998 FG55)
Classification: Main-belt Asteroid          SPK-ID: 2020283
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .184978310498791 2.3617e-08  
a 2.567554246223622 1.1229e-08 au
q 2.092612399643179 5.947e-08 au
i 3.697787536478977 4.9892e-06 deg
node 40.83675998367389 4.1086e-05 deg
peri 279.7869616919644 4.4224e-05 deg
M 66.93940065753083 1.5146e-05 deg
tp 2458921.080193462469
(2020-Mar-12.58019346)
6.3666e-05 TDB
period 1502.719315760628
4.11
9.8579e-06
2.699e-08
d
yr
n .2395656968166272 1.5716e-09 deg/d
Q 3.042496092804064 1.3306e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1870  
   data-arc span      13608 days (37.26 yr)  
   first obs. used      1983-11-09  
   last obs. used      2021-02-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4549  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:16:30  

Additional Information
 Earth MOID = 1.08185 au 
 Jupiter MOID = 2.27983 au 
 T_jup = 3.404 
[ 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 14.21   n/a E2021B10  
diameter diameter 4.139 km 0.841 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.215   0.055 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20283 Elizaheller           Discovered 1998 Mar. 20 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Elizabeth Rose Heller (b. 1986) is a finalist in the 2004 Intel Science Talent Search, a science competition for high school seniors, for her earth and space sciences project. She attends the Nanuet High School, Nanuet, New York.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20040415/MPCPages.arcLast Updated: 2004-04-20

Alternate Designations
 1998 FG55 = 1983 VA6 = 1991 RU5 = 1999 RG52 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Apr-21 14:07 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin