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70161 (1999 NU45)
Classification: Main-belt Asteroid          SPK-ID: 2070161
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2022222146913323 4.3527e-08  
a 2.306916529372776 1.1528e-08 au
q 1.840406759694972 1.0244e-07 au
i 4.962678691476804 5.2425e-06 deg
node 222.4109794882678 5.8645e-05 deg
peri 52.75918800955429 6.0139e-05 deg
M 350.2728680674736 1.3776e-05 deg
tp 2459035.080283843628
(2020-Jul-04.58028384)
4.8999e-05 TDB
period 1279.812206728534
3.50
9.5928e-06
2.626e-08
d
yr
n .2812912692247521 2.1084e-09 deg/d
Q 2.773426299050581 1.3859e-08 au
  Orbit Determination Parameters
   # obs. used (total)      529  
   data-arc span      8325 days (22.79 yr)  
   first obs. used      1998-01-31  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59151  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 21:54:21  

Additional Information
 Earth MOID = .829346 au 
 Jupiter MOID = 2.34951 au 
 T_jup = 3.555 
[ 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 16.07   n/a E2021B10  
diameter diameter 1.599 km 0.427 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.190   0.110 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

70161 (1999 NU45)          Discovered 1999-Jul-13 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 NU45 = 2002 EL83 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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