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 ]  
70142 (1999 NP18)
Classification: Main-belt Asteroid          SPK-ID: 2070142
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2331518357567744 3.9886e-08  
a 2.339325387611306 8.6338e-09 au
q 1.793907379057303 9.5771e-08 au
i 2.457935555284477 4.2937e-06 deg
node 9.766505084893559 8.5638e-05 deg
peri 312.0839468668718 8.597e-05 deg
M 282.1424629527988 7.5753e-06 deg
tp 2459283.139293116521
(2021-Mar-09.63929312)
2.796e-05 TDB
period 1306.875986332081
3.58
7.235e-06
1.981e-08
d
yr
n .2754660761732927 1.525e-09 deg/d
Q 2.88474339616531 1.0647e-08 au
  Orbit Determination Parameters
   # obs. used (total)      870  
   data-arc span      10638 days (29.13 yr)  
   first obs. used      1991-03-13  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49799  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 13:35:00  

Additional Information
 Earth MOID = .782578 au 
 Jupiter MOID = 2.44452 au 
 T_jup = 3.527 
[ 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 16.0   n/a MPO375480  
diameter diameter 1.406 km 0.069 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.469   0.045 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

70142 (1999 NP18)          Discovered 1999-Jul-14 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 NP18 = 2002 GZ42 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Sep-24 18:30 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin