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70135 (1999 NP9)
Classification: Main-belt Asteroid          SPK-ID: 2070135
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2216067925572824 4.0523e-08  
a 2.330275557669979 8.153e-09 au
q 1.813870665560102 9.5297e-08 au
i 2.968861857685825 3.539e-06 deg
node 272.5833860665193 8.8995e-05 deg
peri 127.6813187435842 8.9516e-05 deg
M 305.0132128555379 1.0341e-05 deg
tp 2459398.956437329247
(2021-Jul-03.45643733)
3.7871e-05 TDB
period 1299.299725420025
3.56
6.8189e-06
1.867e-08
d
yr
n .2770723282371377 1.4541e-09 deg/d
Q 2.846680449779855 9.9598e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1012  
   data-arc span      7687 days (21.05 yr)  
   first obs. used      1998-05-16  
   last obs. used      2019-06-02  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52741  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:47:40  

Additional Information
 Earth MOID = .822925 au 
 Jupiter MOID = 2.57564 au 
 T_jup = 3.536 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456622.5 (2013-Nov-26.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2218966890674399 4.0268e-08  
q 1.812654120483702 9.4657e-08 au
tp 2456802.360552813039
(2014-May-24.86055281)
3.2688e-05 TDB
node 272.6887622816865 8.8877e-05 deg
peri 127.7973053593208 8.9397e-05 deg
i 2.971385760479591 3.5415e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1012  
   data-arc span      7687 days (21.05 yr)  
   first obs. used      1998-05-16  
   last obs. used      2019-06-02  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52741  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:47:40  

Additional Information
 Jupiter MOID = 2.57564 au 
 T_jup = 3.536 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.621538093169414E-15 -3.80349805882322E-15 -5.240267015342853E-13 -3.645619642790424E-14 -1.710725540564014E-13 -2.167428686048527E-15
q -3.80349805882322E-15 8.96000919293083E-15 1.258840894729902E-12 8.801231202583307E-14 4.047002717399945E-13 5.186257970010881E-15
tp -5.240267015342853E-13 1.258840894729902E-12 1.068481671795413E-9 2.043040479435673E-11 3.371844897606644E-10 7.324912090201909E-13
node -3.645619642790424E-14 8.801231202583307E-14 2.043040479435673E-11 7.899139766244933E-9 -7.880817295832731E-9 1.165139717663622E-12
peri -1.710725540564014E-13 4.047002717399945E-13 3.371844897606644E-10 -7.880817295832731E-9 7.991738976892102E-9 -8.673300772231868E-13
i -2.167428686048527E-15 5.186257970010881E-15 7.324912090201909E-13 1.165139717663622E-12 -8.673300772231868E-13 1.25421783851103E-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 15.72   n/a MPCxxxxx  
diameter diameter 1.765 km 0.463 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.248   0.107 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

70135 (1999 NP9)          Discovered 1999-Jul-13 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 NP9 = 1998 KY2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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