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 ]  
18941 (2000 QX50)
Classification: Main-belt Asteroid          SPK-ID: 2018941
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1152587664649496 3.0918e-08  
a 3.136793758414333 1.6043e-08 au
q 2.775250779164544 9.375e-08 au
i 6.027089465464943 3.9329e-06 deg
node 140.2180256703236 3.9948e-05 deg
peri 334.701792369318 4.4946e-05 deg
M 145.0024754260418 2.1064e-05 deg
tp 2458579.164635851419
(2019-Apr-05.66463585)
0.00011688 TDB
period 2029.211778826258
5.56
1.5568e-05
4.262e-08
d
yr
n .1774087868779434 1.361e-09 deg/d
Q 3.498336737664123 1.7892e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1623  
   data-arc span      10828 days (29.65 yr)  
   first obs. used      1990-11-21  
   last obs. used      2020-07-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53558  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 18:05:47  

Additional Information
 Earth MOID = 1.79344 au 
 Jupiter MOID = 1.5905 au 
 T_jup = 3.193 
[ 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 13.54   n/a MPCxxxxx  
rotation period rot_per 9.14 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:
[Chang, C.K.; Ip, W.-H.; Lin, H.-W.; Cheng, Y.C.; et al. (2015) Astrophys. J. Supp. Ser. 219, A27.]

18941 (2000 QX50)          Discovered 2000-Aug-24 by LINEAR at Socorro
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2000 QX50 = 1990 WW5 = 1998 HQ110 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jul-31 16:39 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin