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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09863222769116203 3.6214e-08  
a 2.658496401571569 1.3585e-08 au
q 2.396282979175627 1.0019e-07 au
i 3.058447834899611 3.9463e-06 deg
node 100.1194238582761 8.4722e-05 deg
peri 310.1401087723785 8.8207e-05 deg
M 255.966868889092 2.5043e-05 deg
tp 2459058.032249518459
(2020-Jul-27.53224952)		 0.0001112 TDB
period 1583.261102187233
4.33		 1.2135e-05
3.322e-08		 d
yr
n .2273787939984565 1.7428e-09 deg/d
Q 2.920709823967511 1.4924e-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 = 1.40773 au 
 Jupiter MOID = 2.39027 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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