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JPL Small-Body Database Browser
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58908 (1998 KM29)
Classification: Outer Main-belt Asteroid          SPK-ID: 2058908
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04608345693482926 3.7621e-08  
a 3.206831151341532 2.5741e-08 au
q 3.059049286081415 1.2983e-07 au
i 9.567695881670186 5.8508e-06 deg
node 200.6958597640082 2.3405e-05 deg
peri 56.4774741855201 6.8782e-05 deg
M 280.3487481111508 6.5712e-05 deg
tp 2459464.590493884479
(2021-Sep-07.09049388)
0.00038387 TDB
period 2097.551185153463
5.74
2.5256e-05
6.915e-08
d
yr
n .1716287080611391 2.0665e-09 deg/d
Q 3.354613016601648 2.6928e-08 au
  Orbit Determination Parameters
   # obs. used (total)      791  
   data-arc span      9225 days (25.26 yr)  
   first obs. used      1994-11-01  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53633  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 12:39:06  

Additional Information
 Earth MOID = 2.05816 au 
 Jupiter MOID = 1.65993 au 
 T_jup = 3.169 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456789.5 (2014-May-12.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04517913527971172 3.8396e-08  
q 3.063008910843649 1.319e-07 au
tp 2457352.897261217167
(2015-Nov-26.39726122)
0.00038341 TDB
node 200.7405701044573 2.3412e-05 deg
peri 54.12645115224709 6.9314e-05 deg
i 9.564786033986456 5.8495e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      791  
   data-arc span      9225 days (25.26 yr)  
   first obs. used      1994-11-01  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53633  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 12:39:06  

Additional Information
 Jupiter MOID = 1.65993 au 
 T_jup = 3.169 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.474261822785974E-15 -4.983756786840181E-15 -5.423015201848391E-12 -1.992094189433513E-15 -9.11192463673792E-13 -9.184853937800656E-16
q -4.983756786840181E-15 1.739631850264731E-14 1.852057866823803E-11 1.33949924920715E-15 3.08734023224389E-12 6.507860792520365E-15
tp -5.423015201848391E-12 1.852057866823803E-11 1.470032223827388E-7 3.410468815940284E-11 2.502390852167591E-8 2.510115034167014E-11
node -1.992094189433513E-15 1.33949924920715E-15 3.410468815940284E-11 5.481228899543269E-10 -5.344353984050044E-10 -2.527295111694141E-11
peri -9.11192463673792E-13 3.08734023224389E-12 2.502390852167591E-8 -5.344353984050044E-10 4.804390654193227E-9 2.937880134305624E-11
i -9.184853937800656E-16 6.507860792520365E-15 2.510115034167014E-11 -2.527295111694141E-11 2.937880134305624E-11 3.421676876525416E-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 14.0   n/a MPO436194  
diameter diameter 9.360 km 0.317 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.056   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

58908 (1998 KM29)          Discovered 1998-May-22 by LINEAR at Socorro
Reference: 20030614/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
2001-Nov-14 14:29 < 00:01 Jupiter 1.95271925741959 1.95271866662132 1.95271984821798 2.9911183167533 2.842403473736 2452228.103160300 0.632835796596447 67.3379335932333 23.8290702471493 77.2897673274398 4119188.92757156 T 21 CATAB v2.0f-lin.ifort 2020-Feb-23 12:39:23 2020-Feb-23 12:39
2012-Nov-26 13:04 < 00:01 Jupiter 1.76978303671902 1.76978257745698 1.76978349598126 3.13495060440463 2.97837377963004 2456258.044529519 0.275465212011638 77.3866544057362 17.5878191194226 84.9081064021763 3160925.67905935 T 21 CATAB v2.0f-lin.ifort 2020-Feb-23 12:39:23 2020-Feb-23 12:39
2023-Dec-28 14:38 < 00:01 Jupiter 1.66273439173932 1.66273391074419 1.66273487273446 3.43015677453128 3.27828380180483 2460307.109788862 0.451834748698476 68.3050757825467 20.1201270126579 -88.763839736226 2613457.45848575 T 21 CATAB v2.0f-lin.ifort 2020-Feb-23 12:39:23 2020-Feb-23 12:39
2035-Feb-03 04:32 < 00:01 Jupiter 1.68950295610189 1.68950239357544 1.68950351862845 3.63862558762041 3.4981291796548 2464361.689171982 0.876537618772556 80.9327798560457 22.9643501135452 -82.1680214374924 2437831.40800333 T 21 CATAB v2.0f-lin.ifort 2020-Feb-23 12:39:23 2020-Feb-23 12:39
2046-Feb-23 09:42 00:01 Jupiter 1.85374089054592 1.85374007409513 1.85374170699756 3.78369489534191 3.66094181148031 2468399.904099563 1.37551383894986 93.8389233312192 24.0741178960754 -70.5590702357246 2775249.49612149 T 21 CATAB v2.0f-lin.ifort 2020-Feb-23 12:39:23 2020-Feb-23 12:39
2167-Sep-22 04:43 00:06 Jupiter 1.88361872331043 1.88361644445616 1.8836210021648 2.8322378408162 2.66874774629799 2512804.696285309 5.52080789213246 118.663732798194 70.0173062124316 -11.8173039364878 2516382.98235437 T 21 CATAB v2.0f-lin.ifort 2020-Feb-23 12:39:23 2020-Feb-23 12:39
2178-Oct-08 07:20 00:06 Jupiter 1.73138889747607 1.73138711373541 1.73139068123267 3.14359341356466 2.98391492562873 2516838.805300125 5.61840577460421 295.367710983017 28.0968128203219 70.4302419161301 2448851.10195768 T 21 CATAB v2.0f-lin.ifort 2020-Feb-23 12:39:23 2020-Feb-23 12:39
2189-Nov-10 18:18 00:06 Jupiter 1.66956480577806 1.66956429890086 1.66956531265792 3.52127693675411 3.37412635009903 2520890.262816889 5.87567988220822 466.056467021851 21.6079136455265 88.245976683073 2409744.62575599 T 21 CATAB v2.0f-lin.ifort 2020-Feb-23 12:39:23 2020-Feb-23 12:39
2200-Dec-14 02:39 00:07 Jupiter 1.74528965510053 1.74528755007573 1.74529176017701 3.80945747249421 3.67985433235654 2524940.610430231 6.54596828816691 507.156005194826 22.4564105411304 -78.9483424598414 2675136.29186014 T 21 CATAB v2.0f-lin.ifort 2020-Feb-23 12:39:23 2020-Feb-23 12:39

Alternate Designations
 1998 KM29 = 2000 ST229 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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