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455554 (2004 MQ1)
Classification: Apollo [NEO]          SPK-ID: 2455554
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 65 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .7049308738313629 4.5039e-08  
a 2.407019987702433 1.6369e-08 au
q .7102372844418005 1.0502e-07 au
i 11.11991789730229 6.8985e-06 deg
node 56.96752795003957 5.1345e-05 deg
peri 332.0496234730316 4.9633e-05 deg
M 178.0089547958304 5.521e-06 deg
tp 2458722.038255917772
(2019-Aug-26.53825592)
1.5784e-05 TDB
period 1364.011311386507
3.73
1.3914e-05
3.809e-08
d
yr
n .2639274300695225 2.6922e-09 deg/d
Q 4.103802690963065 2.7907e-08 au
  Orbit Determination Parameters
   # obs. used (total)      266  
   # delay obs. used      1  
   # Doppler obs. used      1  
   data-arc span      5740 days (15.72 yr)  
   first obs. used      2004-06-17  
   last obs. used      2020-03-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .38158  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 15:30:27  

Additional Information
 Earth MOID = .122052 au 
 Jupiter MOID = 1.38486 au 
 T_jup = 3.108 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457111.5 (2015-Mar-30.0) TDB
Reference: JPL 65 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .7066942945138457 4.7286e-08  
q .7053218311552337 1.1122e-07 au
tp 2457350.654359085524
(2015-Nov-24.15435909)
9.8584e-06 TDB
node 57.6225902278995 5.3106e-05 deg
peri 331.0479838604383 5.12e-05 deg
i 10.96901723678595 6.6681e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      266  
   # delay obs. used      1  
   # Doppler obs. used      1  
   data-arc span      5740 days (15.72 yr)  
   first obs. used      2004-06-17  
   last obs. used      2020-03-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .38158  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 15:30:27  

Additional Information
 Jupiter MOID = 1.38486 au 
 T_jup = 3.108 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.235979583977384E-15 -5.258539530496808E-15 2.551538063084373E-13 1.140238601560027E-12 -1.294684341448053E-12 -3.619357160771567E-14
q -5.258539530496808E-15 1.236996370576756E-14 -5.999310277284911E-13 -2.671487009737846E-12 3.033309317542767E-12 8.546477929277867E-14
tp 2.551538063084373E-13 -5.999310277284911E-13 9.718749936101273E-11 4.262415175827181E-10 -3.777809125074663E-10 -5.366786775337219E-12
node 1.140238601560027E-12 -2.671487009737846E-12 4.262415175827181E-10 2.82019793291046E-9 -2.677460618023462E-9 1.477079177508439E-10
peri -1.294684341448053E-12 3.033309317542767E-12 -3.777809125074663E-10 -2.677460618023462E-9 2.621444386759666E-9 -1.487728181128869E-10
i -3.619357160771567E-14 8.546477929277867E-14 -5.366786775337219E-12 1.477079177508439E-10 -1.487728181128869E-10 4.44630250015608E-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 18.01   n/a E2021B25  

455554 (2004 MQ1)          Discovered 2004-Jun-17 by Siding Spring Survey at Siding Spring
Reference: Last Updated: 2016-02-25

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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