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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457145.5 (2015-May-03.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2333740941894005 3.9971e-08  
q 1.793709647198432 9.5928e-08 au
tp 2456666.749515676557
(2014-Jan-09.24951568)
2.6816e-05 TDB
node 9.80146982534594 8.5694e-05 deg
peri 311.7162654041887 8.6023e-05 deg
i 2.458544159341926 4.2904e-06 deg
  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
 Jupiter MOID = 2.44452 au 
 T_jup = 3.527 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.597712372952488E-15 -3.826259183102155E-15 2.63178971687306E-13 -1.547717203144269E-14 8.5693718201452E-14 -8.727238355147123E-16
q -3.826259183102155E-15 9.202085470070353E-15 -6.485144542295147E-13 3.687473075088553E-14 -2.057408173851771E-13 2.090944831641402E-15
tp 2.63178971687306E-13 -6.485144542295147E-13 7.190886021470357E-10 -4.022636459055588E-12 2.115081503669226E-10 -4.524727128398135E-13
node -1.547717203144269E-14 3.687473075088553E-14 -4.022636459055588E-12 7.343468542191968E-9 -7.337606303735096E-9 -6.847343606540962E-11
peri 8.5693718201452E-14 -2.057408173851771E-13 2.115081503669226E-10 -7.337606303735096E-9 7.400039498824876E-9 6.828440314290473E-11
i -8.727238355147123E-16 2.090944831641402E-15 -4.524727128398135E-13 -6.847343606540962E-11 6.828440314290473E-11 1.840790988408254E-11

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-Oct-27 03:44 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin