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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2446079458522614 3.3852e-08  
a 2.320703695880396 8.0033e-09 au
q 1.753041131899341 7.7463e-08 au
i 11.20377888812684 3.9733e-06 deg
node 104.9863683803537 2.7186e-05 deg
peri 222.747938588033 2.9805e-05 deg
M 98.80293096323102 1.1202e-05 deg
tp 2458646.098709234529
(2019-Jun-11.59870923)
4.0114e-05 TDB
period 1291.302428295871
3.54
6.6799e-06
1.829e-08
d
yr
n .2787882932080375 1.4422e-09 deg/d
Q 2.888366259861451 9.9609e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1201  
   data-arc span      8781 days (24.04 yr)  
   first obs. used      1996-01-12  
   last obs. used      2020-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49195  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 00:42:41  

Additional Information
 Earth MOID = .758067 au 
 Jupiter MOID = 2.47925 au 
 T_jup = 3.513 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457113.5 (2015-Apr-01.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2452946288805118 3.3883e-08  
q 1.750833192781038 7.7593e-08 au
tp 2457355.738011496443
(2015-Nov-29.23801150)
4.0437e-05 TDB
node 105.0292167111267 2.7207e-05 deg
peri 222.8561332236866 2.9808e-05 deg
i 11.20144773314918 3.9719e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1201  
   data-arc span      8781 days (24.04 yr)  
   first obs. used      1996-01-12  
   last obs. used      2020-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49195  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 00:42:41  

Additional Information
 Jupiter MOID = 2.47925 au 
 T_jup = 3.513 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.1480323768839E-15 -2.62139783267223E-15 3.841193141106114E-13 -1.379492509991761E-15 8.924102749429115E-14 -5.450360599087964E-15
q -2.62139783267223E-15 6.020744603436726E-15 -9.325108704362781E-13 4.035177648067526E-15 -2.235282050210509E-13 1.295093549687205E-14
tp 3.841193141106114E-13 -9.325108704362781E-13 1.635189989924629E-9 4.162684245059759E-12 5.196807695935602E-10 -1.21840812230516E-11
node -1.379492509991761E-15 4.035177648067526E-15 4.162684245059759E-12 7.402374482300338E-10 -7.247775410686522E-10 -3.207620156776066E-11
peri 8.924102749429115E-14 -2.235282050210509E-13 5.196807695935602E-10 -7.247775410686522E-10 8.884975749209505E-10 2.766589780724429E-11
i -5.450360599087964E-15 1.295093549687205E-14 -1.21840812230516E-11 -3.207620156776066E-11 2.766589780724429E-11 1.577591656568198E-11

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 14.8   n/a MPO502354  
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

[ 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
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 23 CATAB v2.0f-lin.ifort 2020-Feb-23 00:42:56 2020-Feb-23 00:42

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