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72912 (2001 OA84)
Classification: Main-belt Asteroid          SPK-ID: 2072912
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1677400763428448 5.2853e-08  
a 2.661290207872121 1.3838e-08 au
q 2.214885185233186 1.4648e-07 au
i 13.3088168214706 5.0576e-06 deg
node 46.3737024040762 1.613e-05 deg
peri 329.6864120501608 2.0366e-05 deg
M 55.58970973336359 1.0221e-05 deg
tp 2459151.633887492416
(2020-Oct-29.13388749)
4.5392e-05 TDB
period 1585.757524648912
4.34
1.2368e-05
3.386e-08
d
yr
n .2270208366690263 1.7707e-09 deg/d
Q 3.107695230511056 1.6159e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1092  
   data-arc span      8712 days (23.85 yr)  
   first obs. used      1997-04-30  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5203  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 22:50:52  

Additional Information
 Earth MOID = 1.22743 au 
 Jupiter MOID = 2.36901 au 
 T_jup = 3.327 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457650.5 (2016-Sep-19.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1702569017558936 5.303e-08  
q 2.207318534233551 1.4738e-07 au
tp 2457565.615367991080
(2016-Jun-26.11536799)
4.8281e-05 TDB
node 46.4328760185784 1.6099e-05 deg
peri 329.5430513126421 2.0181e-05 deg
i 13.32866424944392 5.0653e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1092  
   data-arc span      8712 days (23.85 yr)  
   first obs. used      1997-04-30  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5203  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 22:50:52  

Additional Information
 Jupiter MOID = 2.36901 au 
 T_jup = 3.327 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.812175749426244E-15 -7.797370399740379E-15 4.53049857222496E-13 -1.886672750489358E-14 8.141624301974238E-14 -1.228211336542118E-14
q -7.797370399740379E-15 2.172221350685032E-14 -1.464049080592666E-12 5.102181494817647E-14 -2.719941337173018E-13 3.487133882242013E-14
tp 4.53049857222496E-13 -1.464049080592666E-12 2.331020002202645E-9 3.221511236609242E-12 5.9834598373067E-10 -4.785153131918589E-12
node -1.886672750489358E-14 5.102181494817647E-14 3.221511236609242E-12 2.591829526888225E-10 -2.506028320816466E-10 -3.117942632415221E-11
peri 8.141624301974238E-14 -2.719941337173018E-13 5.9834598373067E-10 -2.506028320816466E-10 4.072643437040837E-10 2.938470912626468E-11
i -1.228211336542118E-14 3.487133882242013E-14 -4.785153131918589E-12 -3.117942632415221E-11 2.938470912626468E-11 2.565733450854085E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.96   n/a E2021B10  

72912 (2001 OA84)          Discovered 2001-Jul-18 by Tholen, D. J. at Mauna Kea
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 2001 OA84 = 1997 HV13 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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