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 ]  
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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2226906287050015 6.432e-08  
a 2.467916029723863 1.7695e-08 au
q 1.918334257473505 1.5782e-07 au
i 13.15988881348869 6.0287e-06 deg
node 136.4492440826118 2.296e-05 deg
peri 93.77766394231718 2.8412e-05 deg
M 340.6337824749701 1.4971e-05 deg
tp 2458676.679181127269
(2019-Jul-12.17918113)
5.8729e-05 TDB
period 1416.100235906781
3.88
1.523e-05
4.17e-08
d
yr
n .2542192924425853 2.7341e-09 deg/d
Q 3.017497801974221 2.1635e-08 au
  Orbit Determination Parameters
   # obs. used (total)      478  
   data-arc span      6440 days (17.63 yr)  
   first obs. used      2001-09-19  
   last obs. used      2019-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54452  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 07:33:09  

Additional Information
 Earth MOID = .961585 au 
 Jupiter MOID = 2.13286 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 16.3   n/a MPO433025  
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
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin