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52867 (1998 SD25)
Classification: Main-belt Asteroid          SPK-ID: 2052867
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1747161755287594 3.0968e-08  
a 2.235345307702152 7.24e-09 au
q 1.844794324554274 6.8357e-08 au
i 6.219582186615048 3.9804e-06 deg
node 32.25038216856162 2.9218e-05 deg
peri 274.779895123846 3.1619e-05 deg
M 280.4773272281673 1.2859e-05 deg
tp 2459470.152111702031
(2021-Sep-12.65211170)
4.39e-05 TDB
period 1220.718027062032
3.34
5.9306e-06
1.624e-08
d
yr
n .2949083998263149 1.4328e-09 deg/d
Q 2.62589629085003 8.505e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1467  
   data-arc span      8129 days (22.26 yr)  
   first obs. used      1998-09-19  
   last obs. used      2020-12-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48685  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 10:48:43  

Additional Information
 Earth MOID = .8411 au 
 Jupiter MOID = 2.63575 au 
 T_jup = 3.611 
[ 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 15.27   n/a E2021B10  
diameter diameter 3.319 km 0.749 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.160   0.040 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

52867 (1998 SD25)          Discovered 1998-Sep-19 by LONEOS at Anderson Mesa
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 SD25 = 2000 DW92 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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