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70002 (1998 XY9)
Classification: Main-belt Asteroid          SPK-ID: 2070002
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 .1873941211551791 4.723e-08  
a 3.129844906146471 1.6123e-08 au
q 2.543330370607139 1.4519e-07 au
i 2.379460520384509 4.1582e-06 deg
node 80.87729465961718 0.00012899 deg
peri 312.2284910626747 0.00012991 deg
M 8.976293717849355 1.1995e-05 deg
tp 2459150.071365667145
(2020-Oct-27.57136567)
6.7548e-05 TDB
period 2022.472629625282
5.54
1.5628e-05
4.279e-08
d
yr
n .1779999366748908 1.3754e-09 deg/d
Q 3.716359441685802 1.9145e-08 au
  Orbit Determination Parameters
   # obs. used (total)      995  
   data-arc span      10331 days (28.28 yr)  
   first obs. used      1992-09-28  
   last obs. used      2021-01-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49215  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:46:19  

Additional Information
 Earth MOID = 1.54927 au 
 Jupiter MOID = 1.72209 au 
 T_jup = 3.185 
[ 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 14.83   n/a E2021B10  
diameter diameter 6.201 km 0.215 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.055   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

70002 (1998 XY9)          Discovered 1998-Dec-07 by ODAS at Caussols
Reference: 20031109/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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