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JPL Small-Body Database Browser
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24693 (1990 SB2)
Classification: Mars-crossing Asteroid          SPK-ID: 2024693
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3478052664772385 3.8527e-08  
a 2.407295151932096 1.0372e-08 au
q 1.570025220124989 9.4043e-08 au
i 20.10121981260987 4.7494e-06 deg
node 153.8191253140606 1.2984e-05 deg
peri 268.7638800797335 1.5079e-05 deg
M 209.0965301993744 1.1296e-05 deg
tp 2459172.359267660713
(2020-Nov-18.85926766)
4.5433e-05 TDB
period 1364.245213379469
3.74
8.8165e-06
2.414e-08
d
yr
n .263882179295479 1.7054e-09 deg/d
Q 3.244565083739203 1.3979e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1228  
   data-arc span      23922 days (65.49 yr)  
   first obs. used      1954-03-07  
   last obs. used      2019-09-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49701  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 01:38:49  

Additional Information
 Earth MOID = .725908 au 
 Jupiter MOID = 2.5073 au 
 T_jup = 3.359 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.8   n/a MPO435932  

24693 (1990 SB2)          Discovered 1990-Sep-23 by Roman, B. at Palomar
Reference: 20010606/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1990 SB2 = 1999 BC1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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