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JPL Small-Body Database Browser
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65580 (4181 T-2)
Classification: Main-belt Asteroid          SPK-ID: 2065580
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ 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 .03422715202875759 4.1033e-08  
a 3.100860327397505 2.5072e-08 au
q 2.994726709551728 1.359e-07 au
i 11.02188406887269 6.9059e-06 deg
node 22.26121690053429 2.1269e-05 deg
peri 287.0050746342148 0.00010028 deg
M 247.8711804261665 9.9422e-05 deg
tp 2459621.707203704217
(2022-Feb-11.20720370)
0.00055222 TDB
period 1994.443481911992
5.46
2.4189e-05
6.623e-08
d
yr
n .1805014798689019 2.1892e-09 deg/d
Q 3.206993945243283 2.5931e-08 au
  Orbit Determination Parameters
   # obs. used (total)      641  
   data-arc span      17023 days (46.61 yr)  
   first obs. used      1973-09-19  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53959  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 12:52:24  

Additional Information
 Earth MOID = 2.00551 au 
 Jupiter MOID = 1.89227 au 
 T_jup = 3.193 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457169.5 (2015-May-27.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03274987695664547 4.1008e-08  
q 2.999604171378448 1.3566e-07 au
tp 2457625.565052038982
(2016-Aug-25.06505204)
0.00057274 TDB
node 22.29019905607318 2.1267e-05 deg
peri 286.9084033470419 0.00010462 deg
i 11.02207002753566 6.9057e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      641  
   data-arc span      17023 days (46.61 yr)  
   first obs. used      1973-09-19  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53959  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 12:52:24  

Additional Information
 Jupiter MOID = 1.89227 au 
 T_jup = 3.193 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.681670765998428E-15 -5.481060403589346E-15 6.377074202545995E-12 1.982760377798544E-15 1.160732255015373E-12 -4.853897103336793E-16
q -5.481060403589346E-15 1.840423426799265E-14 -1.766026544127151E-11 -5.369524322182215E-15 -3.24836254322369E-12 4.555991941559574E-15
tp 6.377074202545995E-12 -1.766026544127151E-11 3.280306379763428E-7 8.177275508699739E-11 5.868015998336477E-8 -1.077646690724806E-12
node 1.982760377798544E-15 -5.369524322182215E-15 8.177275508699739E-11 4.522803785389495E-10 -4.289047022199574E-10 -1.121222953672595E-11
peri 1.160732255015373E-12 -3.24836254322369E-12 5.868015998336477E-8 -4.289047022199574E-10 1.094596553161023E-8 1.090002192017239E-11
i -4.853897103336793E-16 4.555991941559574E-15 -1.077646690724806E-12 -1.121222953672595E-11 1.090002192017239E-11 4.768807396777694E-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 14.6   n/a MPO287225  

65580 (4181 T-2)          Discovered 1973-Sep-29 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 4181 T-2 = 2001 TD34 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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