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JPL Small-Body Database Browser
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65870 (1997 UK9)
Classification: Main-belt Asteroid          SPK-ID: 2065870
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2248208998844448 5.1227e-08  
a 2.27352438544728 1.4478e-08 au
q 1.762388587201793 1.179e-07 au
i 25.10256919912721 6.0477e-06 deg
node 224.0857263371319 1.3666e-05 deg
peri 169.9660947525912 1.8753e-05 deg
M 218.5324923661191 1.508e-05 deg
tp 2459492.541862147894
(2021-Oct-05.04186215)
5.5298e-05 TDB
period 1252.125476273103
3.43
1.1961e-05
3.275e-08
d
yr
n .2875111215463202 2.7464e-09 deg/d
Q 2.784660183692767 1.7733e-08 au
  Orbit Determination Parameters
   # obs. used (total)      485  
   data-arc span      10403 days (28.48 yr)  
   first obs. used      1990-10-14  
   last obs. used      2019-04-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5568  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 06:21:18  

Additional Information
 Earth MOID = .773397 au 
 Jupiter MOID = 2.64881 au 
 T_jup = 3.455 
[ 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 15.4   n/a MPO417280  

65870 (1997 UK9)          Discovered 1997-Oct-30 by NEAT at Haleakala
Reference: 20030910/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
1941-Oct-13 19:01 < 00:01 Hebe 0.043441100444556 0.0434392819876272 0.0434429209618099 8.24368586359371 8.24368584623429 2430281.292378108 0.866183373342667 531.634792736594 39.4576087059833 81.1367792313099 162718.519948594 T 18 CATAB v2.0e-lin.ifort 2019-Jul-13 06:21:23 2019-Jul-13 06:21
2026-Nov-18 20:58 < 00:01 Thisb 0.0187949990005713 0.0187936967289262 0.0187963013871557 7.40338954022789 7.40338949122724 2461363.373872224 0.532836195961245 126.681059563752 47.9850637160596 68.0922230763019 54979.6504736906 T 18 CATAB v2.0e-lin.ifort 2019-Jul-13 06:21:23 2019-Jul-13 06:21
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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