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30727 (1979 MC9)
Classification: Main-belt Asteroid          SPK-ID: 2030727
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1788048357244745 3.7014e-08  
a 2.354853185355214 9.7456e-09 au
q 1.933794048392519 8.4975e-08 au
i 2.190500228057553 5.9018e-06 deg
node 187.2328326442115 0.0001042 deg
peri 78.06107558234855 0.00010595 deg
M 245.4927475628749 2.1764e-05 deg
tp 2459816.331165022158
(2022-Aug-24.83116502)
8.1127e-05 TDB
period 1319.909579447522
3.61
8.1937e-06
2.243e-08
d
yr
n .2727459559394109 1.6932e-09 deg/d
Q 2.775912322317908 1.1488e-08 au
  Orbit Determination Parameters
   # obs. used (total)      443  
   data-arc span      15097 days (41.33 yr)  
   first obs. used      1979-06-23  
   last obs. used      2020-10-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55773  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 06:39:30  

Additional Information
 Earth MOID = .919443 au 
 Jupiter MOID = 2.30238 au 
 T_jup = 3.532 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457058.5 (2015-Feb-05.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1787663098395074 3.697e-08  
q 1.933288978525147 8.4841e-08 au
tp 2457177.539508650687
(2015-Jun-04.03950865)
7.3993e-05 TDB
node 187.268323874511 0.00010418 deg
peri 78.13333481199381 0.00010593 deg
i 2.19057273116558 5.9036e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      443  
   data-arc span      15097 days (41.33 yr)  
   first obs. used      1979-06-23  
   last obs. used      2020-10-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55773  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 06:39:30  

Additional Information
 Jupiter MOID = 2.30238 au 
 T_jup = 3.532 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.366769412111237E-15 -3.124069727005402E-15 3.675371365698119E-13 1.181306049207772E-15 5.815525042182638E-14 3.343082498698306E-16
q -3.124069727005402E-15 7.198021826517957E-15 -6.612464645599546E-13 -2.859096256861512E-15 -8.985730232040472E-14 -7.571208328835796E-16
tp 3.675371365698119E-13 -6.612464645599546E-13 5.474983224062078E-9 -1.696907556634599E-11 1.430304239204972E-9 3.788303809126148E-13
node 1.181306049207772E-15 -2.859096256861512E-15 -1.696907556634599E-11 1.085313718897582E-8 -1.084902212821358E-8 -5.589400551366122E-11
peri 5.815525042182638E-14 -8.985730232040472E-14 1.430304239204972E-9 -1.084902212821358E-8 1.122208277528936E-8 5.597089653579134E-11
i 3.343082498698306E-16 -7.571208328835796E-16 3.788303809126148E-13 -5.589400551366122E-11 5.597089653579134E-11 3.485191933973011E-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 16.6   n/a MPO435976  

30727 (1979 MC9)          Discovered 1979-Jun-25 by Helin, E. F., Bus, S. J. at Siding Spring
Reference: 20011130/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1979 MC9 = 1995 YU11 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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