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78996 (2080 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2078996
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1993641648401276 3.7067e-08  
a 2.209578715319457 5.8732e-09 au
q 1.769067900091271 8.366e-08 au
i 2.24647944796442 3.4035e-06 deg
node 294.0403697798973 9.7641e-05 deg
peri 81.50146677775051 9.8161e-05 deg
M 56.20447328413341 8.54e-06 deg
tp 2458813.202912139427
(2019-Nov-25.70291214)
2.837e-05 TDB
period 1199.672333711578
3.28
4.7832e-06
1.31e-08
d
yr
n .3000819389459641 1.1965e-09 deg/d
Q 2.650089530547643 7.0441e-09 au
  Orbit Determination Parameters
   # obs. used (total)      841  
   data-arc span      21712 days (59.44 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-03-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52977  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:24:47  

Additional Information
 Earth MOID = .771901 au 
 Jupiter MOID = 2.82206 au 
 T_jup = 3.631 
[ 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 16.4   n/a MPO502632  
rotation period rot_per 5.05 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Chang, C.K.; Ip, W.-H.; Lin, H.-W.; Cheng, Y.C.; et al. (2015) Astrophys. J. Supp. Ser. 219, A27.]

78996 (2080 P-L)          Discovered 1960-Sep-24 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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