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452 Hamiltonia (A899 XB)
Classification: Main-belt Asteroid          SPK-ID: 2000452
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .014405269476829 3.2504e-08  
a 2.847423971217558 1.0709e-08 au
q 2.806406061597386 9.5587e-08 au
i 3.224703152292618 3.5444e-06 deg
node 92.47458851560401 6.0667e-05 deg
peri 62.64487984244109 0.00014337 deg
M 303.8151074414496 0.00012973 deg
tp 2459274.401043038700
(2021-Feb-28.90104304)
0.00063265 TDB
period 1754.998025335303
4.80
9.9011e-06
2.711e-08
d
yr
n .205128435931556 1.1573e-09 deg/d
Q 2.888441880837729 1.0864e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3043  
   data-arc span      44171 days (120.93 yr)  
   first obs. used      1899-12-10  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42227  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 01:53:45  

Additional Information
 Earth MOID = 1.81624 au 
 Jupiter MOID = 2.0776 au 
 T_jup = 3.304 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456844.5 (2014-Jul-06.0) TDB
Reference: JPL 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01381260242355785 3.3149e-08  
q 2.806976228556352 9.7061e-08 au
tp 2457567.057660057493
(2016-Jun-27.55766006)
0.00064675 TDB
node 92.56297489293283 6.0674e-05 deg
peri 72.35859064159153 0.00014612 deg
i 3.224824505235684 3.544e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      3043  
   data-arc span      44171 days (120.93 yr)  
   first obs. used      1899-12-10  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42227  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 01:53:45  

Additional Information
 Jupiter MOID = 2.0776 au 
 T_jup = 3.304 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.098850818400374E-15 -3.199392705668906E-15 1.268205241133235E-12 -3.644749755454121E-17 2.988123785839649E-13 -9.555610133604294E-17
q -3.199392705668906E-15 9.420788502266591E-15 -2.625976314376851E-12 -1.079528104029839E-15 -6.60298604222055E-13 3.731766731864634E-16
tp 1.268205241133235E-12 -2.625976314376851E-12 4.182816213902989E-7 -1.25452506887421E-11 8.59778779783969E-8 1.25518307893377E-12
node -3.644749755454121E-17 -1.079528104029839E-15 -1.25452506887421E-11 3.681304060939053E-9 -3.677715731208874E-9 -1.679625426965174E-11
peri 2.988123785839649E-13 -6.60298604222055E-13 8.59778779783969E-8 -3.677715731208874E-9 2.135049315268486E-8 1.701275209742131E-11
i -9.555610133604294E-17 3.731766731864634E-16 1.25518307893377E-12 -1.679625426965174E-11 1.701275209742131E-11 1.255993534630309E-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 11.8   n/a MPO416707  
diameter diameter 11.563 km 0.816 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 2.8813 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Pilcher, F. (2010) Minor Planet Bull. 37, 45-46.]
[Aznar, A.M.; Cornea, R.; Suciu, O. (2018) Minor Planet Bull. 45, 92-96.]
geometric albedo albedo 0.252   0.028 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

452 Hamiltonia (A899 XB)          Discovered 1899-Dec-06 by Keeler, J. E. at Mount Hamilton
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 A899 XB = 1958 BK = 1973 FZ1 = 1978 GA3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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