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JPL Small-Body Database Browser
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46487 (3322 T-2)
Classification: Main-belt Asteroid          SPK-ID: 2046487
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03785637715124431 4.1287e-08  
a 2.602048541236134 1.5164e-08 au
q 2.503544410293254 1.0178e-07 au
i 14.31704940257086 5.0688e-06 deg
node 169.7865581940779 1.5233e-05 deg
peri 88.56283217874591 7.6886e-05 deg
M 45.84426044157953 7.3024e-05 deg
tp 2458405.266658129285
(2018-Oct-13.76665813)
0.0003114 TDB
period 1533.103651285245
4.20
1.3402e-05
3.669e-08
d
yr
n .2348177826712509 2.0527e-09 deg/d
Q 2.700552672179015 1.5738e-08 au
  Orbit Determination Parameters
   # obs. used (total)      836  
   data-arc span      16844 days (46.12 yr)  
   first obs. used      1973-09-19  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5567  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 03:17:07  

Additional Information
 Earth MOID = 1.53888 au 
 Jupiter MOID = 2.33172 au 
 T_jup = 3.369 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456936.5 (2014-Oct-06.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03778365754237649 4.0371e-08  
q 2.504157680489639 9.9403e-08 au
tp 2456880.142571647896
(2014-Aug-10.64257165)
0.00032094 TDB
node 169.8489860589625 1.522e-05 deg
peri 90.52425740490327 7.8221e-05 deg
i 14.32249093168747 5.0713e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      836  
   data-arc span      16844 days (46.12 yr)  
   first obs. used      1973-09-19  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5567  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 03:17:07  

Additional Information
 Jupiter MOID = 2.33172 au 
 T_jup = 3.369 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.62981204730491E-15 -3.978025538169968E-15 -5.324605263531298E-12 -1.545773308118099E-15 -1.315261251601908E-12 -6.417191758408191E-15
q -3.978025538169968E-15 9.88099569758746E-15 1.236593854016698E-11 2.477667431043416E-15 3.0609429469872E-12 1.649146903969037E-14
tp -5.324605263531298E-12 1.236593854016698E-11 1.03000651834039E-7 6.054903032243974E-11 2.46343634143705E-8 3.781341323710416E-11
node -1.545773308118099E-15 2.477667431043416E-15 6.054903032243974E-11 2.316342293970919E-10 -2.095084265083244E-10 1.664154192015111E-11
peri -1.315261251601908E-12 3.0609429469872E-12 2.46343634143705E-8 -2.095084265083244E-10 6.118585952003281E-9 -6.905142437422569E-12
i -6.417191758408191E-15 1.649146903969037E-14 3.781341323710416E-11 1.664154192015111E-11 -6.905142437422569E-12 2.571772748384243E-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 15.1   n/a MPO412495  
diameter diameter 2.464 km 0.588 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.383   0.264 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46487 (3322 T-2)          Discovered 1973-Sep-25 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 3322 T-2 = 1998 QK33 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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