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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 ]

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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 
[ 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 15.7   n/a MPO333401  
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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