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
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
215143 (1999 UN50)
Classification: Main-belt Asteroid          SPK-ID: 2215143
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2461513686498929 5.669e-08  
a 2.350305078004098 9.4053e-09 au
q 1.771774266308596 1.301e-07 au
i 3.874932335140421 4.3841e-06 deg
node 139.8318943414127 7.2678e-05 deg
peri 216.5961844370275 7.3116e-05 deg
M 282.3110037826205 9.2334e-06 deg
tp 2459284.515338171036
(2021-Mar-11.01533817)
3.4722e-05 TDB
period 1316.087563488172
3.60
7.8999e-06
2.163e-08
d
yr
n .2735380304376195 1.6419e-09 deg/d
Q 2.9288358896996 1.172e-08 au
  Orbit Determination Parameters
   # obs. used (total)      418  
   data-arc span      7110 days (19.47 yr)  
   first obs. used      1999-10-19  
   last obs. used      2019-04-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49376  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 03:19:41  

Additional Information
 Earth MOID = .769097 au 
 Jupiter MOID = 2.51779 au 
 T_jup = 3.514 
[ 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 16.7   n/a MPO433408  

215143 (1999 UN50)          Discovered 1999-Oct-30 by CSS at Catalina
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08

[ show close-approach data ]
Alternate Designations
 1999 UN50 = 2006 QR22 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-May-29 08:19 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin