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30654 (2234 T-1)
Classification: Main-belt Asteroid          SPK-ID: 2030654
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .109973569802492 9.3459e-08  
a 2.529582311848598 1.0111e-08 au
q 2.251395114905367 2.3547e-07 au
i 12.94126362567041 8.2391e-06 deg
node 13.81884622417836 1.9948e-05 deg
peri 95.61027912144239 8.4748e-05 deg
M 194.1606963724982 7.6271e-05 deg
tp 2459877.450035319242
(2022-Oct-24.95003532)
0.00031182 TDB
period 1469.506970810224
4.02
8.8108e-06
2.412e-08
d
yr
n .2449801240490279 1.4688e-09 deg/d
Q 2.80776950879183 1.1223e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1537  
   data-arc span      18013 days (49.32 yr)  
   first obs. used      1971-03-24  
   last obs. used      2020-07-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51946  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 06:38:56  

Additional Information
 Earth MOID = 1.31073 au 
 Jupiter MOID = 2.33336 au 
 T_jup = 3.408 
[ show covariance matrix ]

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 14.26   n/a E2021B10  
diameter diameter 5.108 km 1.813 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.155   0.074 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

30654 (2234 T-1)          Discovered 1971-Mar-25 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20011002/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2234 T-1 = 1993 TJ43 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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