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 ]  
217807 (2000 XK44)
Classification: Amor [NEO]          SPK-ID: 2217807
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 89 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3852166480592095 6.7916e-09  
a 1.724193632756442 2.7988e-09 au
q 1.060005540940974 1.1668e-08 au
i 11.23507093350076 4.6121e-06 deg
node 48.10993361033101 5.7608e-06 deg
peri 347.6117155773647 1.0804e-05 deg
M 330.9069146021505 5.6426e-06 deg
tp 2459267.328969335213
(2021-Feb-21.82896934)
1.3104e-05 TDB
period 826.9466311900647
2.26
2.0135e-06
5.513e-09
d
yr
n .435336436986171 1.06e-09 deg/d
Q 2.38838172457191 3.877e-09 au
  Orbit Determination Parameters
   # obs. used (total)      432  
   # delay obs. used      3  
   # Doppler obs. used      3  
   data-arc span      16412 days (44.93 yr)  
   first obs. used      1975-07-16  
   last obs. used      2020-06-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46019  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:00:27  

Additional Information
 Earth MOID = .0728178 au 
 Jupiter MOID = 3.04665 au 
 T_jup = 4.060 
[ 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 18.16   n/a E2021B55  
rotation period rot_per 51.9 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Warner, B.D.; Pravec, P.; Harris, A.W.; Stephens, R.D.; Pray, D.P. (2010) Minor Planet Bull. 37, 86.]

217807 (2000 XK44)          Discovered 2000-Dec-05 by LINEAR at Socorro
Reference: 20090904/Numbers.arcLast Updated: 2009-09-08

[ 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-Apr-14 15:36 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin