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118438 (1999 UK17)
Classification: Main-belt Asteroid          SPK-ID: 2118438
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0785890647205217 4.1132e-08  
a 3.092845847151809 3.0472e-08 au
q 2.849781984699399 1.3276e-07 au
i 10.4327668703537 5.8003e-06 deg
node 183.9928200204331 2.551e-05 deg
peri 69.92171254741091 4.5617e-05 deg
M 23.43443757931451 3.7289e-05 deg
tp 2458871.173396178370
(2020-Jan-22.67339618)
0.00020567 TDB
period 1986.716225563827
5.44
2.9361e-05
8.039e-08
d
yr
n .181203533432578 2.6779e-09 deg/d
Q 3.335909709604219 3.2866e-08 au
  Orbit Determination Parameters
   # obs. used (total)      454  
   data-arc span      7595 days (20.79 yr)  
   first obs. used      1999-10-03  
   last obs. used      2020-07-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57781  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 18:11:35  

Additional Information
 Earth MOID = 1.85786 au 
 Jupiter MOID = 1.72136 au 
 T_jup = 3.194 
[ 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 15.2   n/a MPO475040  
diameter diameter 3.680 km 0.401 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.119   0.054 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

118438 (1999 UK17)          Discovered 1999-Oct-29 by Spacewatch at Kitt Peak
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

[ 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
1940-Jul-01 19:02 00:03 Jupiter 1.7174844355361 1.71748393712406 1.71748493394863 3.54884622304418 3.4070452059288 2429812.293178537 3.35936716337908 283.949223489883 21.447391950996 87.876288595684 2299488.68519437 T 15 CATAB v2.0f-lin.ifort 2020-Nov-12 18:11:36 2020-Nov-12 18:11
2000-Oct-08 13:42 < 00:01 Jupiter 1.81452973838585 1.81452913771473 1.81453033905717 2.94935419753473 2.78659113346701 2451826.071075060 0.732929789758084 75.0105407156338 25.602274358113 80.3134526150348 2659484.09901534 T 15 CATAB v2.0f-lin.ifort 2020-Nov-12 18:11:36 2020-Nov-12 18:11
2010-Sep-11 23:13 < 00:01 Jupiter 1.83848653216077 1.83848600821202 1.83848705610952 3.98133563277913 3.8638839086234 2455451.467429526 0.281618813052056 47.246507341315 23.4533782725243 -87.6638730528968 2690072.19139263 T 15 CATAB v2.0f-lin.ifort 2020-Nov-12 18:11:36 2020-Nov-12 18:11
2070-Dec-06 05:08 00:03 Jupiter 1.72817304466289 1.72817251421648 1.72817357511018 3.57702912169284 3.43727877359236 2477451.714122356 2.5549391357304 219.383174023082 21.7393557230388 -89.3228162860197 2277953.15118965 T 15 CATAB v2.0f-lin.ifort 2020-Nov-12 18:11:36 2020-Nov-12 18:11
2131-Mar-16 22:58 00:06 Jupiter 1.8086275495938 1.80862587463565 1.80862922456316 2.91086103959871 2.74526233512716 2499466.456978310 5.66074236700312 258.217997499815 30.9901732349921 65.5421909600305 1966779.87089761 T 15 CATAB v2.0f-lin.ifort 2020-Nov-12 18:11:36 2020-Nov-12 18:11
2141-Feb-17 09:28 00:06 Jupiter 1.86229054588057 1.86228797036575 1.86229312143021 4.08019052829872 3.96715238793786 2503091.894392920 5.6711352768304 435.84649073764 24.5499317526692 -74.1145111464178 2738221.92042633 T 15 CATAB v2.0f-lin.ifort 2020-Nov-12 18:11:36 2020-Nov-12 18:11
2191-Jul-19 12:46 00:09 Jupiter 1.98735128604426 1.98734825913234 1.98735431295504 2.63337418215715 2.46622101610615 2521506.032240278 8.78897400557468 138.391534967769 52.2045037958027 -40.2323248096017 1255540.03418509 T 15 CATAB v2.0f-lin.ifort 2020-Nov-12 18:11:36 2020-Nov-12 18:11
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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