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17129 (1999 JM78)
Classification: Main-belt Asteroid          SPK-ID: 2017129
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 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03936017447250957 3.2576e-08  
a 2.617735394724621 1.0226e-08 au
q 2.514700872865396 8.6277e-08 au
i 15.20126839557715 3.5271e-06 deg
node 134.6539821575697 1.4276e-05 deg
peri 114.0355221091117 5.0466e-05 deg
M 317.2193709876215 4.8272e-05 deg
tp 2459184.336485881737
(2020-Nov-30.83648588)
0.00020748 TDB
period 1546.988355367003
4.24
9.0646e-06
2.482e-08
d
yr
n .232710219667164 1.3636e-09 deg/d
Q 2.720769916583845 1.0628e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2550  
   data-arc span      25892 days (70.89 yr)  
   first obs. used      1949-07-28  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41432  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 18:06:38  

Additional Information
 Earth MOID = 1.53096 au 
 Jupiter MOID = 2.38512 au 
 T_jup = 3.356 
[ 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 12.7   n/a MPO337404  
rotation period rot_per 6.2615 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Ditteon, R.; West, J. (2011) Minor Planet Bull. 38, 214-217.]
[Warner, B.D. (2012) Minor Planet Bull. 39, 245-252.]

17129 (1999 JM78)          Discovered 1999-May-13 by LINEAR at Socorro
Reference: 20000913/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 JM78 = 1949 ON 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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