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30664 (1040 T-2)
Classification: Main-belt Asteroid          SPK-ID: 2030664
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07440588208490176 2.9054e-08  
a 2.302822466116891 6.8348e-09 au
q 2.131478929240535 6.7336e-08 au
i 1.49340392697409 3.4275e-06 deg
node 207.5243791690557 0.0001168 deg
peri 331.4091670229963 0.00011886 deg
M 7.943529100817872 2.2555e-05 deg
tp 2459172.335625944721
(2020-Nov-18.83562594)
7.9941e-05 TDB
period 1276.406812540867
3.49
5.6826e-06
1.556e-08
d
yr
n .2820417412873012 1.2556e-09 deg/d
Q 2.474166002993247 7.3433e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1450  
   data-arc span      17351 days (47.50 yr)  
   first obs. used      1973-09-19  
   last obs. used      2021-03-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52151  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 04:30:54  

Additional Information
 Earth MOID = 1.13416 au 
 Jupiter MOID = 2.48509 au 
 T_jup = 3.586 
[ 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 15.32   n/a E2021B10  
diameter diameter 2.288 km 0.455 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.308   0.157 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

30664 (1040 T-2)          Discovered 1973-Sep-29 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20011002/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1040 T-2 = 1996 DD4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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