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74389 (1998 XR25)
Classification: Main-belt Asteroid          SPK-ID: 2074389
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08610874709134402 4.6012e-08  
a 2.81450172998792 2.0791e-08 au
q 2.57214851233224 1.296e-07 au
i 7.028057225767805 5.6311e-06 deg
node 64.11499913358558 4.185e-05 deg
peri 269.2857159463451 5.55e-05 deg
M 190.4050538449626 3.937e-05 deg
tp 2459412.977068789518
(2021-Jul-17.47706879)
0.0001919 TDB
period 1724.648943824312
4.72
1.911e-05
5.232e-08
d
yr
n .2087381326438065 2.3129e-09 deg/d
Q 3.0568549476436 2.2581e-08 au
  Orbit Determination Parameters
   # obs. used (total)      610  
   data-arc span      7475 days (20.47 yr)  
   first obs. used      1998-11-19  
   last obs. used      2019-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59821  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 05:41:31  

Additional Information
 Earth MOID = 1.57328 au 
 Jupiter MOID = 2.23647 au 
 T_jup = 3.303 
[ 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 MPO432296  
diameter diameter 3.032 km 0.520 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.160   0.039 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74389 (1998 XR25)          Discovered 1998-Dec-14 by Spacewatch at Kitt Peak
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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