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393927 (2005 UA99)
Classification: Main-belt Asteroid          SPK-ID: 2393927
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0698020102705235 5.6246e-08  
a 3.136222281861038 5.4941e-08 au
q 2.917307661931929 1.962e-07 au
i 10.42140895836175 6.7598e-06 deg
node 73.7916932627675 3.1927e-05 deg
peri 232.8466597627841 6.3672e-05 deg
M 319.2117366802968 6.0899e-05 deg
tp 2459230.348352128518
(2021-Jan-15.84835213)
0.00034585 TDB
period 2028.657266373373
5.55
5.3308e-05
1.459e-07
d
yr
n .1774572797324072 4.6631e-09 deg/d
Q 3.355136901790147 5.8776e-08 au
  Orbit Determination Parameters
   # obs. used (total)      201  
   data-arc span      4970 days (13.61 yr)  
   first obs. used      2005-10-22  
   last obs. used      2019-06-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .67127  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:10:28  

Additional Information
 Earth MOID = 1.91607 au 
 Jupiter MOID = 1.81511 au 
 T_jup = 3.182 
[ 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 15.6   n/a MPO437613  

393927 (2005 UA99)          Discovered 2005-Oct-22 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-05-15

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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
1906-Feb-16 20:32 00:09 Jupiter 1.83100701056982 1.83100631554395 1.83100770560058 3.787087117759 3.66289916422472 2417258.355666846 8.89964974015795 311.209505173009 25.1182547882846 -86.1473765943403 2199682.5880681 T 17 CATAB v2.0f-lin.ifort 2019-Sep-24 07:10:30 2019-Sep-24 07:10
1916-Jul-17 07:59 00:08 Jupiter 1.94429963262967 1.94429726170429 1.94430200362102 3.78023434335772 3.66317944451441 2421061.832606813 8.37156539371666 617.587260162678 33.3407840289849 -79.6858659766345 2309969.21264612 T 17 CATAB v2.0f-lin.ifort 2019-Sep-24 07:10:30 2019-Sep-24 07:10
1989-Nov-03 14:43 00:02 Jupiter 1.87577604987519 1.87577529262184 1.87577680713004 3.67356515693674 3.54851575630285 2447834.113251551 2.09906446410879 133.140866618609 21.7878385650496 -77.4039991872348 2217724.404419 T 17 CATAB v2.0f-lin.ifort 2019-Sep-24 07:10:30 2019-Sep-24 07:10
2000-Apr-12 10:37 00:01 Jupiter 1.85904834476192 1.85904768325908 1.85904900626497 3.83466718074397 3.71395062669799 2451646.942256960 1.21898995781025 132.205503269719 26.7358050488009 -85.1228542659315 2236216.71189305 T 17 CATAB v2.0f-lin.ifort 2019-Sep-24 07:10:30 2019-Sep-24 07:10
2073-Jul-25 16:09 00:05 Jupiter 1.98378314920867 1.98378140606128 1.98378489236722 3.47435426105548 3.349207496195 2478414.172759457 4.8483242371324 265.691540326121 20.5021639462742 -70.9986032411008 2400272.27372698 T 17 CATAB v2.0f-lin.ifort 2019-Sep-24 07:10:30 2019-Sep-24 07:10
2084-Jan-01 08:58 00:06 Jupiter 1.83644193864562 1.83644127227264 1.83644260502037 3.83224193198548 3.70993501144634 2482225.873560820 5.67227785957267 207.989967440628 24.8193446807186 -85.3157447134834 2238627.56401441 T 17 CATAB v2.0f-lin.ifort 2019-Sep-24 07:10:30 2019-Sep-24 07:10
2094-Jun-03 01:37 00:07 Jupiter 1.96379202861331 1.96378998889845 1.96379406837036 3.92492890572174 3.81345344560185 2486031.567578715 6.83260781465153 504.284642065785 33.0420080657136 -79.1971484518101 2492220.27685148 T 17 CATAB v2.0f-lin.ifort 2019-Sep-24 07:10:30 2019-Sep-24 07:10
2167-Sep-19 17:27 00:13 Jupiter 1.87748263657509 1.87747999584733 1.87748527738844 3.67523095780297 3.55035584347001 2512802.226770644 12.5371094321945 672.260934290748 22.2955121695943 -77.9021913897998 2216326.81296624 T 17 CATAB v2.0f-lin.ifort 2019-Sep-24 07:10:30 2019-Sep-24 07:10
2178-Feb-27 06:32 00:14 Jupiter 1.87633819907807 1.87633555378292 1.8763408444033 3.94521771500336 3.82908559609703 2516615.771975486 13.5954667679224 423.56948542145 38.4416821483159 -72.9699582815324 2068691.73637052 T 17 CATAB v2.0f-lin.ifort 2019-Sep-24 07:10:30 2019-Sep-24 07:10

Alternate Designations
 2005 UA99 = 2011 XZ3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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