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 ]  
160391 (2004 NJ20)
Classification: Main-belt Asteroid          SPK-ID: 2160391
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2229601879393077 6.0003e-08  
a 2.467735571813951 1.7106e-08 au
q 1.917528784937797 1.4589e-07 au
i 13.16399638179437 5.233e-06 deg
node 136.4349426200286 2.216e-05 deg
peri 93.66408803934749 2.7174e-05 deg
M 82.40123379599032 1.3155e-05 deg
tp 2458676.401088357881
(2019-Jul-11.90108836)
5.2634e-05 TDB
period 1415.944917524283
3.88
1.4723e-05
4.031e-08
d
yr
n .2542471783644267 2.6436e-09 deg/d
Q 3.017942358690104 2.092e-08 au
  Orbit Determination Parameters
   # obs. used (total)      543  
   data-arc span      6888 days (18.86 yr)  
   first obs. used      2001-09-19  
   last obs. used      2020-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53428  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 12:19:24  

Additional Information
 Earth MOID = .960911 au 
 Jupiter MOID = 2.13171 au 
 T_jup = 3.416 
[ 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 16.4   n/a MPO475383  
diameter diameter 2.744 km 0.859 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
geometric albedo albedo 0.042   0.034 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

160391 (2004 NJ20)          Discovered 2004-Jul-14 by LINEAR at Socorro
Reference: 20070730/Numbers.arcLast Updated: 2007-08-06

[ show close-approach data ]
Alternate Designations
 2004 NJ20 = 2001 SD352 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Oct-25 06:15 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin