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46681 (1997 AN5)
Classification: Main-belt Asteroid          SPK-ID: 2046681
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 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1262310440754839 3.1146e-08  
a 2.254993632871875 5.5922e-09 au
q 1.970343432210889 7.0939e-08 au
i 5.647000065054345 3.3831e-06 deg
node 61.95839823000193 3.7901e-05 deg
peri 350.5494842199651 4.077e-05 deg
M 138.8119452893874 1.5024e-05 deg
tp 2458919.585258838746
(2020-Mar-11.08525884)
5.1082e-05 TDB
period 1236.848215476867
3.39
4.6009e-06
1.26e-08
d
yr
n .2910623918887266 1.0827e-09 deg/d
Q 2.53964383353286 6.2981e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1784  
   data-arc span      8917 days (24.41 yr)  
   first obs. used      1997-01-07  
   last obs. used      2021-06-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50929  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 21:25:07  

Additional Information
 Earth MOID = .981239 au 
 Jupiter MOID = 2.78522 au 
 T_jup = 3.607 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457541.5 (2016-Jun-02.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .12602858344873 3.1296e-08  
q 1.971082177579412 7.1301e-08 au
tp 2457680.375786563325
(2016-Oct-18.87578656)
4.9946e-05 TDB
node 61.97922889272759 3.7903e-05 deg
peri 350.0085985788356 4.0772e-05 deg
i 5.647358697186263 3.3841e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1784  
   data-arc span      8917 days (24.41 yr)  
   first obs. used      1997-01-07  
   last obs. used      2021-06-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50929  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 21:25:07  

Additional Information
 Jupiter MOID = 2.78522 au 
 T_jup = 3.607 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.794246172339855E-16 -2.226252470962502E-15 -5.560740866217736E-13 6.559529259376966E-15 -1.77145520289901E-13 -5.735086367005396E-16
q -2.226252470962502E-15 5.083900067624619E-15 1.307727368321842E-12 -1.492566191153263E-14 4.140098547747879E-13 1.370189481272617E-15
tp -5.560740866217736E-13 1.307727368321842E-12 2.494619174571269E-9 -1.204393746100627E-11 7.641199078189846E-10 1.368093912335253E-12
node 6.559529259376966E-15 -1.492566191153263E-14 -1.204393746100627E-11 1.436669637776338E-9 -1.433019593555761E-9 -4.307895752773735E-11
peri -1.77145520289901E-13 4.140098547747879E-13 7.641199078189846E-10 -1.433019593555761E-9 1.662324266283281E-9 4.328781326335314E-11
i -5.735086367005396E-16 1.370189481272617E-15 1.368093912335253E-12 -4.307895752773735E-11 4.328781326335314E-11 1.145207148619453E-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 14.89   n/a MPCxxxxx  
diameter diameter 2.746 km 0.166 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.339   0.037 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46681 (1997 AN5)          Discovered 1997-Jan-07 by Kobayashi, T. at Oizumi
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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