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 ]  
20478 Rutenberg (1999 NJ20)
Classification: Main-belt Asteroid          SPK-ID: 2020478
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1729847395776778 3.8698e-08  
a 2.599142352082338 1.1905e-08 au
q 2.149530389182062 1.0505e-07 au
i 5.978551090816814 3.3773e-06 deg
node 107.6100905702091 3.318e-05 deg
peri 229.7595225582647 3.4349e-05 deg
M 322.5628770786359 8.0052e-06 deg
tp 2459159.663503576553
(2020-Nov-06.16350358)
3.4019e-05 TDB
period 1530.535917728352
4.19
1.0516e-05
2.879e-08
d
yr
n .2352117293230976 1.616e-09 deg/d
Q 3.048754314982614 1.3964e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1688  
   data-arc span      8716 days (23.86 yr)  
   first obs. used      1996-12-18  
   last obs. used      2020-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48783  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:02:36  

Additional Information
 Earth MOID = 1.14561 au 
 Jupiter MOID = 2.33359 au 
 T_jup = 3.387 
[ 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 14.2   n/a MPO435889  
diameter diameter 3.723 km 0.633 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.320   0.129 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20478 Rutenberg           Discovered 1999 July 14 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Michael Lev Rutenberg- Schoenberg (b. 1990) is a finalist in the 2004 Discovery Channel Young Scientist Challenge (DCYSC), a middle school science competition, for his biochemistry, medicine, health, and microbiology project. He attends the Portland Jewish Academy, Portland, Oregon.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20041028/MPCPages.arcLast Updated: 2004-10-29

Alternate Designations
 1999 NJ20 = 1998 HK135 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Nov-24 03:50 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin