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437100 (2012 US101)
Classification: Main-belt Asteroid          SPK-ID: 2437100
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01944007281375592 9.8373e-08  
a 3.073014545077941 6.8844e-08 au
q 3.013274918563894 3.0832e-07 au
i 11.53651890016532 1.1382e-05 deg
node 48.13954008029158 4.1688e-05 deg
peri 12.82482696090319 0.00025614 deg
M 127.7594431982638 0.00025055 deg
tp 2458302.209939577539
(2018-Jul-02.70993958)
0.0013685 TDB
period 1967.63867671194
5.39
6.6121e-05
1.81e-07
d
yr
n .1829604206609645 6.1482e-09 deg/d
Q 3.132754171591987 7.0182e-08 au
  Orbit Determination Parameters
   # obs. used (total)      68  
   data-arc span      6274 days (17.18 yr)  
   first obs. used      2001-10-11  
   last obs. used      2018-12-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64826  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 14:51:05  

Additional Information
 Earth MOID = 2.025 au 
 Jupiter MOID = 1.94823 au 
 T_jup = 3.199 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457053.5 (2015-Jan-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01989726977023913 9.6942e-08  
q 3.011899691989686 3.0416e-07 au
tp 2456357.036195985348
(2013-Mar-05.53619599)
0.0013642 TDB
node 48.16363425941299 4.1682e-05 deg
peri 17.09697559887264 0.00025513 deg
i 11.53749909778329 1.1383e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      68  
   data-arc span      6274 days (17.18 yr)  
   first obs. used      2001-10-11  
   last obs. used      2018-12-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64826  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 14:51:05  

Additional Information
 Jupiter MOID = 1.94823 au 
 T_jup = 3.199 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.39766053360408E-15 -2.875790728530787E-14 -3.448057671715755E-11 6.403375453873063E-15 -6.022194762252156E-12 -1.875107532397933E-14
q -2.875790728530787E-14 9.251154123219627E-14 1.036715228261062E-10 -2.146199808965936E-14 1.839393124920717E-11 6.988004275824008E-14
tp -3.448057671715755E-11 1.036715228261062E-10 1.861107800645279E-6 2.658509563293566E-11 3.433546779266792E-7 4.110045811401809E-10
node 6.403375453873063E-15 -2.146199808965936E-14 2.658509563293566E-11 1.737406006999541E-9 -1.697505995283874E-9 -1.431483038115062E-10
peri -6.022194762252156E-12 1.839393124920717E-11 3.433546779266792E-7 -1.697505995283874E-9 6.508950629478019E-8 2.17051940930432E-10
i -1.875107532397933E-14 6.988004275824008E-14 4.110045811401809E-10 -1.431483038115062E-10 2.17051940930432E-10 1.29570324566997E-10

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 16.5   n/a MPO437695  

437100 (2012 US101)          Discovered 2007-Nov-03 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-06-04

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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