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74578 (1999 NF28)
Classification: Main-belt Asteroid          SPK-ID: 2074578
[ 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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1896330517159284 4.8483e-08  
a 2.374039981689434 1.3974e-08 au
q 1.92384353506604 1.1598e-07 au
i 23.36552958574143 5.2814e-06 deg
node 106.212233856033 1.3421e-05 deg
peri 275.1373873316735 1.8663e-05 deg
M 191.1835488276036 1.6096e-05 deg
tp 2459627.031247164731
(2022-Feb-16.53124716)		 6.2291e-05 TDB
period 1336.073868470135
3.66		 1.1797e-05
3.23e-08		 d
yr
n .2694461799572626 2.379e-09 deg/d
Q 2.824236428312828 1.6624e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1028  
   data-arc span      7616 days (20.85 yr)  
   first obs. used      1999-06-23  
   last obs. used      2020-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52236  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 14:06:54  

Additional Information
 Earth MOID = 1.07805 au 
 Jupiter MOID = 2.80815 au 
 T_jup = 3.409 
[ 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 14.6   n/a MPO366104  
diameter diameter 2.892 km 0.414 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.441   0.088 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74578 (1999 NF28)          Discovered 1999-Jul-14 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 NF28 = 2000 WS55 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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