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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03945965132375318 2.0545e-08  
a 2.617901816612863 9.9694e-09 au
q 2.514600323729499 5.566e-08 au
i 15.20140318579605 4.5112e-07 deg
node 134.6529942552787 1.7436e-06 deg
peri 114.1777500109183 1.4802e-05 deg
M 3.631289329676417 1.5078e-05 deg
tp 2459184.894172168835
(2020-Dec-01.39417217)
6.4806e-05 TDB
period 1547.135881821857
4.24
8.8376e-06
2.42e-08
d
yr
n .2326880296875254 1.3292e-09 deg/d
Q 2.721203309496226 1.0363e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2672  
   data-arc span      25963 days (71.08 yr)  
   first obs. used      1949-07-28  
   last obs. used      2020-08-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42279  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-17 01:25:35  

Additional Information
 Earth MOID = 1.52892 au 
 Jupiter MOID = 2.38421 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 12.78   n/a E2021B10  
rotation period rot_per 6.2615 h n/a LCDB (Rev. 2020-October); 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.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]

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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