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74374 (1998 XN4)
Classification: Main-belt Asteroid          SPK-ID: 2074374
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 .09883374781590167 3.6175e-08  
a 2.657925048914825 1.3417e-08 au
q 2.395232354916809 1.0013e-07 au
i 3.058540406699104 3.9467e-06 deg
node 100.1201996909835 8.4726e-05 deg
peri 310.3217871208 8.8201e-05 deg
M 346.7830910636588 2.5229e-05 deg
tp 2459058.608534005163
(2020-Jul-28.10853401)
0.00011106 TDB
period 1582.750728072245
4.33
1.1984e-05
3.281e-08
d
yr
n .227452114609653 1.7222e-09 deg/d
Q 2.920617742912841 1.4743e-08 au
  Orbit Determination Parameters
   # obs. used (total)      906  
   data-arc span      7661 days (20.97 yr)  
   first obs. used      1998-11-11  
   last obs. used      2019-11-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54491  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 06:46:22  

Additional Information
 Earth MOID = 1.40719 au 
 Jupiter MOID = 2.38916 au 
 T_jup = 3.378 
[ 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 15.0   n/a MPO417339  
diameter diameter 3.665 km 0.773 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.173   0.051 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74374 (1998 XN4)          Discovered 1998-Dec-09 by Korlevic, K. at Visnjan
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 XN4 = 2002 RM19 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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