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JPL Small-Body Database Browser
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20790 (2000 SE45)
Classification: Amor [NEO]          SPK-ID: 2020790
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 147 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .561092493275723 4.0379e-08  
a 2.740498074774175 2.016e-08 au
q 1.202825177181815 1.1592e-07 au
i 8.33299005490405 5.1832e-06 deg
node 302.9766125732738 3.6954e-05 deg
peri 168.8199423460257 3.9386e-05 deg
M 7.507103934146891 1.577e-05 deg
tp 2458565.944863991299
(2019-Mar-23.44486399)
7.2211e-05 TDB
period 1657.076959671277
4.54
1.8285e-05
5.006e-08
d
yr
n .217250018412793 2.3972e-09 deg/d
Q 4.278170972366536 3.1471e-08 au
  Orbit Determination Parameters
   # obs. used (total)      871  
   data-arc span      9877 days (27.04 yr)  
   first obs. used      1992-03-09  
   last obs. used      2019-03-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45539  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Mar-27 07:45:47  

Additional Information
 Earth MOID = .221271 au 
 Jupiter MOID = .875659 au 
 T_jup = 3.087 
[ 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 16.4   n/a MPO267785  
rotation period rot_per 2.792 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2001) http://www.asu.cas.cz/~ppravec/neo.htm]
SMASSII spectral type spec_B S   n/a Binzel et al. (2004) Icarus 170, 259-294  

20790 (2000 SE45)          Discovered 2000-Sep-26 by LINEAR at Socorro
Reference: 20010109/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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