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187782 (1998 SB120)
Classification: Main-belt Asteroid          SPK-ID: 2187782
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 .1455786775842099 3.5851e-08  
a 2.289287330883368 1.0664e-08 au
q 1.956015908643082 8.2812e-08 au
i 7.472285145437184 5.2547e-06 deg
node 191.3362082318338 3.1409e-05 deg
peri 66.09013978249644 3.6779e-05 deg
M 246.3007251633067 1.8521e-05 deg
tp 2459600.080308816815
(2022-Jan-20.58030882)
6.5786e-05 TDB
period 1265.169996736251
3.46
8.8401e-06
2.42e-08
d
yr
n .2845467414882499 1.9882e-09 deg/d
Q 2.622558753123654 1.2216e-08 au
  Orbit Determination Parameters
   # obs. used (total)      495  
   data-arc span      8151 days (22.32 yr)  
   first obs. used      1998-09-23  
   last obs. used      2021-01-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57632  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 11:57:21  

Additional Information
 Earth MOID = .954221 au 
 Jupiter MOID = 2.43547 au 
 T_jup = 3.574 
[ 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 16.5   n/a MPO533184  

187782 (1998 SB120)          Discovered 1998-Sep-26 by LINEAR at Socorro
Reference: 20080618/Numbers.arcLast Updated: 2008-06-20

[ show close-approach data ]
Alternate Designations
 1998 SB120 = 2004 EU66 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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