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26315 (1998 UF4)
Classification: Main-belt Asteroid          SPK-ID: 2026315
[ 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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2446414272053289 3.3792e-08  
a 2.320878799004459 7.787e-09 au
q 1.753095697245418 7.7239e-08 au
i 11.2033098264196 3.7746e-06 deg
node 104.9858576865378 2.393e-05 deg
peri 222.7769143712692 2.5933e-05 deg
M 154.5136593657936 9.9107e-06 deg
tp 2458646.204317053269
(2019-Jun-11.70431705)		 3.5026e-05 TDB
period 1291.44857923803
3.54		 6.4996e-06
1.779e-08		 d
yr
n .2787567432320102 1.4029e-09 deg/d
Q 2.888661900763499 9.692e-09 au
   Orbit Determination Parameters
   # obs. used (total)      1279  
   data-arc span      9144 days (25.03 yr)  
   first obs. used      1996-01-12  
   last obs. used      2021-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49394  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 03:18:46  

Additional Information
 Earth MOID = .756231 au 
 Jupiter MOID = 2.47911 au 
 T_jup = 3.512 
[ 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 14.83   n/a E2021B10  
diameter diameter 5.118 km 0.119 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.107   0.022 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

26315 (1998 UF4)          Discovered 1998-Oct-21 by Korlevic, K. at Visnjan
Reference: 20010705/Numbers.arcLast Updated: 2004-04-19

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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
2172-Jul-13 15:38 00:06 David 0.0441068184205245 0.0440892381887983 0.0441244013885719 4.67821742786058 4.67821735464611 2514561.151293750 5.68234517421325 1033.91635168536 58.4662345239074 -32.1169862998825 60202.1176116305 T 27 CATAB v2.0f-lin.ifort 2021-Feb-24 03:18:49 2021-Feb-24 03:18

Alternate Designations
 1998 UF4 = 2000 EO167 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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