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120438 (1978 NU)
Classification: Main-belt Asteroid          SPK-ID: 2120438
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2568382070077998 5.9985e-08  
a 2.380620061298912 1.5193e-08 au
q 1.769185873188101 1.389e-07 au
i 10.97573449270448 5.011e-06 deg
node 285.1082712273989 2.8812e-05 deg
peri 10.57778009710645 3.207e-05 deg
M 194.8526166994862 1.945e-05 deg
tp 2459815.964143774637
(2022-Aug-24.46414377)
7.645e-05 TDB
period 1341.632469923487
3.67
1.2843e-05
3.516e-08
d
yr
n .2683298206255627 2.5687e-09 deg/d
Q 2.992054249409724 1.9095e-08 au
  Orbit Determination Parameters
   # obs. used (total)      526  
   data-arc span      15535 days (42.53 yr)  
   first obs. used      1978-07-07  
   last obs. used      2021-01-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51145  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 09:25:01  

Additional Information
 Earth MOID = .752298 au 
 Jupiter MOID = 2.22546 au 
 T_jup = 3.469 
[ 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 15.8   n/a MPO348203  
diameter diameter 4.250 km 0.350 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.056   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

120438 (1978 NU)          Discovered 1978-Jul-07 by Williams, J. G. at Palomar
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

[ show close-approach data ]
Alternate Designations
 1978 NU = 2001 YH49 = 2004 RF213 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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