Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
20790 (2000 SE45)
Classification: Amor [NEO]          SPK-ID: 2020790
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]

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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 149 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5597445430978009 3.9523e-08  
a 2.744887674401816 2.1475e-08 au
q 1.208451777238986 1.1375e-07 au
i 8.335597707758538 5.0932e-06 deg
node 302.95048797 3.5454e-05 deg
peri 169.002478442981 3.7748e-05 deg
M 137.6207280568491 1.7248e-05 deg
tp 2458565.510355572987
(2019-Mar-23.01035557)
7.2181e-05 TDB
period 1661.059894257316
4.55
1.9494e-05
5.337e-08
d
yr
n .2167290904106509 2.5435e-09 deg/d
Q 4.281323571564646 3.3496e-08 au
  Orbit Determination Parameters
   # obs. used (total)      873  
   data-arc span      9877 days (27.04 yr)  
   first obs. used      1992-03-09  
   last obs. used      2019-03-25  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47652  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:31:39  

Additional Information
 Earth MOID = .226434 au 
 Jupiter MOID = .870786 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. 2020-October); 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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-May-09 17:20 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin