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181516 (2006 UW78)
Classification: Main-belt Asteroid          SPK-ID: 2181516
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1045405666724572 8.7788e-08  
a 2.801942093397285 2.238e-08 au
q 2.509025479170122 2.4439e-07 au
i 2.898751172562116 9.6067e-06 deg
node 337.4118349137599 0.00013612 deg
peri 42.93569067400617 0.00014449 deg
M 15.892360557728 4.126e-05 deg
tp 2459124.873662390920
(2020-Oct-02.37366239)
0.0001964 TDB
period 1713.117534703167
4.69
2.0524e-05
5.619e-08
d
yr
n .2101431995805107 2.5177e-09 deg/d
Q 3.094858707624448 2.4719e-08 au
  Orbit Determination Parameters
   # obs. used (total)      183  
   data-arc span      7909 days (21.65 yr)  
   first obs. used      1999-03-22  
   last obs. used      2020-11-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .6447  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:30:55  

Additional Information
 Earth MOID = 1.51088 au 
 Jupiter MOID = 2.3724 au 
 T_jup = 3.315 
[ 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 16.8   n/a MPO440018  

181516 (2006 UW78)          Discovered 2006-Oct-17 by Spacewatch at Kitt Peak
Reference: 20080321/Numbers.arcLast Updated: 2008-03-26

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1949-Nov-21 18:29 00:04 Psych 0.0368001536794738 0.0367781727229489 0.0368221547814876 2.06967779582446 2.06967763696949 2433242.269823326 4.19543807294177 1743.70596701881 93.2004396012243 -51.2744360851586 45970.2644104592 T 14 CATAB v2.0f-lin.ifort 2021-Apr-13 21:30:56 2021-Apr-13 21:30

Alternate Designations
 2006 UW78 = 2001 SW308 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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