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74072 (1998 MK9)
Classification: Main-belt Asteroid          SPK-ID: 2074072
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2438625181388734 3.2316e-08  
a 2.545497460633626 1.2964e-08 au
q 1.924746039967402 7.7828e-08 au
i 7.123269612915018 4.6558e-06 deg
node 182.6129505181787 4.1576e-05 deg
peri 145.6628832133271 4.4105e-05 deg
M 104.8073587147679 1.6226e-05 deg
tp 2458568.636296670764
(2019-Mar-26.13629667)
6.6047e-05 TDB
period 1483.397111663097
4.06
1.1333e-05
3.103e-08
d
yr
n .2426861945257459 1.854e-09 deg/d
Q 3.16624888129985 1.6126e-08 au
  Orbit Determination Parameters
   # obs. used (total)      978  
   data-arc span      9812 days (26.86 yr)  
   first obs. used      1993-03-20  
   last obs. used      2020-01-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52157  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 17:10:35  

Additional Information
 Earth MOID = .918889 au 
 Jupiter MOID = 2.23297 au 
 T_jup = 3.390 
[ 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 15.1   n/a MPO347989  
diameter diameter 2.368 km 0.266 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.315   0.115 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

74072 (1998 MK9)          Discovered 1998-Jun-19 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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