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215780 (2004 HR69)
Classification: Main-belt Asteroid          SPK-ID: 2215780
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1055301176462083 5.2598e-08  
a 2.863895321367092 3.154e-08 au
q 2.561668111176798 1.6362e-07 au
i 14.06887704085176 5.0769e-06 deg
node 225.0186261608535 2.2934e-05 deg
peri 256.8703333603933 4.0213e-05 deg
M 243.3196268962923 3.8962e-05 deg
tp 2459774.258913171706
(2022-Jul-13.75891317)
0.00019641 TDB
period 1770.248099551633
4.85
2.9244e-05
8.007e-08
d
yr
n .2033613255063968 3.3594e-09 deg/d
Q 3.166122531557387 3.4869e-08 au
  Orbit Determination Parameters
   # obs. used (total)      321  
   data-arc span      6988 days (19.13 yr)  
   first obs. used      2001-09-29  
   last obs. used      2020-11-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50678  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:52:08  

Additional Information
 Earth MOID = 1.62142 au 
 Jupiter MOID = 2.09761 au 
 T_jup = 3.248 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457979.5 (2017-Aug-14.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .102873914838511 5.2149e-08  
q 2.570315171690984 1.6216e-07 au
tp 2457995.313130510298
(2017-Aug-29.81313051)
0.00018817 TDB
node 225.1657457213764 2.2856e-05 deg
peri 255.4324144451084 4.1135e-05 deg
i 14.09148670801504 5.0845e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      321  
   data-arc span      6988 days (19.13 yr)  
   first obs. used      2001-09-29  
   last obs. used      2020-11-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50678  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:52:08  

Additional Information
 Jupiter MOID = 2.09761 au 
 T_jup = 3.248 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.719484908074949E-15 -8.345626686211169E-15 -1.705332389769417E-12 -4.473370287341326E-15 -2.513034126941499E-13 6.538271222945502E-15
q -8.345626686211169E-15 2.629485563513409E-14 7.087100835055439E-12 1.415049090663288E-14 1.105041745894622E-12 -1.787130960085773E-14
tp -1.705332389769417E-12 7.087100835055439E-12 3.540695984584421E-8 6.441704389251793E-11 6.480396656414286E-9 8.478822662440287E-12
node -4.473370287341326E-15 1.415049090663288E-14 6.441704389251793E-11 5.223772673253793E-10 -4.941440753576081E-10 -1.466821616424089E-11
peri -2.513034126941499E-13 1.105041745894622E-12 6.480396656414286E-9 -4.941440753576081E-10 1.692081330812444E-9 1.58706812940546E-11
i 6.538271222945502E-15 -1.787130960085773E-14 8.478822662440287E-12 -1.466821616424089E-11 1.58706812940546E-11 2.585212082837967E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.97   n/a E2021B55  

215780 (2004 HR69)          Discovered 2004-Apr-22 by Spacewatch at Kitt Peak
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08

Alternate Designations
 2004 HR69 = 2008 CX35 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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