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180355 (2003 YK78)
Classification: Main-belt Asteroid          SPK-ID: 2180355
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02708740558775173 5.678e-08  
a 2.336828164068333 1.2757e-08 au
q 2.273529551799333 1.3836e-07 au
i 5.164759383657285 5.4727e-06 deg
node 309.9112225091412 4.459e-05 deg
peri 52.59524315595538 8.5915e-05 deg
M 1.050959852182149 7.2436e-05 deg
tp 2459196.690901359854
(2020-Dec-13.19090136)
0.00026254 TDB
period 1304.783915013805
3.57
1.0685e-05
2.925e-08
d
yr
n .2759077544239891 2.2594e-09 deg/d
Q 2.400126776337333 1.3103e-08 au
  Orbit Determination Parameters
   # obs. used (total)      400  
   data-arc span      8701 days (23.82 yr)  
   first obs. used      1996-12-14  
   last obs. used      2020-10-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53367  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:26:11  

Additional Information
 Earth MOID = 1.26973 au 
 Jupiter MOID = 2.70117 au 
 T_jup = 3.561 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457846.5 (2017-Apr-03.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02808565593795664 5.6423e-08  
q 2.27160286235726 1.3774e-07 au
tp 2457895.704419667086
(2017-May-22.20441967)
0.00025724 TDB
node 309.9514827164868 4.4633e-05 deg
peri 53.76110021310896 8.4399e-05 deg
i 5.161976104758451 5.4691e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      400  
   data-arc span      8701 days (23.82 yr)  
   first obs. used      1996-12-14  
   last obs. used      2020-10-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53367  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:26:11  

Additional Information
 Jupiter MOID = 2.70117 au 
 T_jup = 3.561 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.183558488603582E-15 -7.745677534836433E-15 -5.410990346125879E-12 2.295817733424615E-14 -1.505896435486851E-12 1.782818343993329E-15
q -7.745677534836433E-15 1.897153175401186E-14 1.22550394105847E-11 -5.543393769501496E-14 3.410195359638456E-12 -3.948144066113556E-15
tp -5.410990346125879E-12 1.22550394105847E-11 6.6173648665686E-8 -9.212502924749439E-11 1.844249846934596E-8 -8.436491698918322E-12
node 2.295817733424615E-14 -5.543393769501496E-14 -9.212502924749439E-11 1.992103974957392E-9 -2.009106798497443E-9 1.195529839705026E-10
peri -1.505896435486851E-12 3.410195359638456E-12 1.844249846934596E-8 -2.009106798497443E-9 7.123262277502093E-9 -1.214236282722695E-10
i 1.782818343993329E-15 -3.948144066113556E-15 -8.436491698918322E-12 1.195529839705026E-10 -1.214236282722695E-10 2.991116522036754E-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 16.78   n/a MPCxxxxx  
rotation period rot_per 4.337 h n/a LCDB (Rev. 2020-October); 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

180355 (2003 YK78)          Discovered 2003-Dec-18 by LINEAR at Socorro
Reference: 20080321/Numbers.arcLast Updated: 2008-03-26

[ show close-approach data ]
Alternate Designations
 2003 YK78 = 2002 NS49 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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