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65619 (4218 T-3)
Classification: Main-belt Asteroid          SPK-ID: 2065619
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2088214259845688 3.2849e-08  
a 2.324771311872871 8.4602e-09 au
q 1.839309251439562 7.8053e-08 au
i 3.445291205481198 4.7645e-06 deg
node 135.8178416183508 7.3811e-05 deg
peri 303.1523858124076 7.5064e-05 deg
M 328.0123948456635 1.4522e-05 deg
tp 2459115.539771189189
(2020-Sep-23.03977119)
5.255e-05 TDB
period 1294.698913166173
3.54
7.0674e-06
1.935e-08
d
yr
n .2780569260845548 1.5178e-09 deg/d
Q 2.810233372306181 1.0227e-08 au
  Orbit Determination Parameters
   # obs. used (total)      675  
   data-arc span      15358 days (42.05 yr)  
   first obs. used      1977-10-07  
   last obs. used      2019-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56706  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 14:42:53  

Additional Information
 Earth MOID = .857627 au 
 Jupiter MOID = 2.44529 au 
 T_jup = 3.543 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.0   n/a MPO432208  
diameter diameter 1.458 km 0.193 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 6.40 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Chang, C.K.; Ip, W.-H.; Lin, H.-W.; Cheng, Y.C.; et al. (2015) Astrophys. J. Supp. Ser. 219, A27.]
geometric albedo albedo 0.331   0.064 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

65619 (4218 T-3)          Discovered 1977-Oct-16 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 4218 T-3 = 2002 VQ49 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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