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101245 (1998 SD84)
Classification: Main-belt Asteroid          SPK-ID: 2101245
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1116318913104727 5.1123e-08  
a 2.548557748582938 1.135e-08 au
q 2.264057426994665 1.3223e-07 au
i 7.965200424764059 5.8423e-06 deg
node 170.6353841461049 2.65e-05 deg
peri 129.3270538856581 3.36e-05 deg
M 218.0793604379979 2.0149e-05 deg
tp 2459786.345642513432
(2022-Jul-25.84564251)
8.4452e-05 TDB
period 1486.073004995836
4.07
9.9271e-06
2.718e-08
d
yr
n .2422492022866728 1.6183e-09 deg/d
Q 2.833058070171211 1.2617e-08 au
  Orbit Determination Parameters
   # obs. used (total)      688  
   data-arc span      8216 days (22.49 yr)  
   first obs. used      1998-09-16  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56394  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:35:53  

Additional Information
 Earth MOID = 1.2568 au 
 Jupiter MOID = 2.39077 au 
 T_jup = 3.419 
[ 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 15.8   n/a MPO410655  
diameter diameter 1.923 km 0.333 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.208   0.075 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

101245 (1998 SD84)          Discovered 1998-Sep-26 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1998 SD84 = 2002 RZ78 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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