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JPL Small-Body Database Browser
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39410 (2191 T-1)
Classification: Main-belt Asteroid          SPK-ID: 2039410
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1777930181199085 3.4394e-08  
a 2.289573061689704 1.0115e-08 au
q 1.882502956845852 7.9394e-08 au
i 6.264734865456975 5.4058e-06 deg
node 158.0133761288085 3.7172e-05 deg
peri 116.4644365863565 4.0767e-05 deg
M 243.9275506954583 1.9377e-05 deg
tp 2459008.496873372015
(2020-Jun-07.99687337)
6.9718e-05 TDB
period 1265.406866952175
3.46
8.386e-06
2.296e-08
d
yr
n .2844934774750246 1.8854e-09 deg/d
Q 2.696643166533556 1.1914e-08 au
  Orbit Determination Parameters
   # obs. used (total)      588  
   data-arc span      17502 days (47.92 yr)  
   first obs. used      1971-03-25  
   last obs. used      2019-02-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62901  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 02:06:36  

Additional Information
 Earth MOID = .875848 au 
 Jupiter MOID = 2.43862 au 
 T_jup = 3.570 
[ 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 16.2   n/a PDS3 (MPO 26845)  

39410 (2191 T-1)          Discovered 1971-Mar-25 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20020328/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2191 T-1 = 1999 JP95 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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