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351440 (2005 HX2)
Classification: Main-belt Asteroid          SPK-ID: 2351440
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 .1389586000905874 8.4927e-08  
a 2.528293263265638 1.4441e-08 au
q 2.176965170783782 2.1813e-07 au
i 8.077737904656541 8.6852e-06 deg
node 221.9303236749166 3.036e-05 deg
peri 337.3300367948122 3.6176e-05 deg
M 337.1841804245893 1.6425e-05 deg
tp 2459293.562169156849
(2021-Mar-20.06216916)
6.6974e-05 TDB
period 1468.383845942236
4.02
1.2581e-05
3.444e-08
d
yr
n .2451675023494926 2.1005e-09 deg/d
Q 2.879621355747494 1.6448e-08 au
  Orbit Determination Parameters
   # obs. used (total)      213  
   data-arc span      7312 days (20.02 yr)  
   first obs. used      2001-04-24  
   last obs. used      2021-05-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5548  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 12:13:51  

Additional Information
 Earth MOID = 1.17549 au 
 Jupiter MOID = 2.09431 au 
 T_jup = 3.425 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457746.5 (2016-Dec-24.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1399077785492251 8.4897e-08  
q 2.174689459522323 2.1849e-07 au
tp 2457825.762620136056
(2017-Mar-13.26262014)
6.7607e-05 TDB
node 221.9456240615077 3.0365e-05 deg
peri 337.466070199024 3.6074e-05 deg
i 8.077189644257269 8.6864e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      213  
   data-arc span      7312 days (20.02 yr)  
   first obs. used      2001-04-24  
   last obs. used      2021-05-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5548  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 12:13:51  

Additional Information
 Jupiter MOID = 2.09431 au 
 T_jup = 3.425 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.207554863380518E-15 -1.852142934307892E-14 1.838535883964337E-12 -1.087168953874389E-13 5.158087317635891E-13 1.227753189641759E-14
q -1.852142934307892E-14 4.773928585731254E-14 -4.830569523499213E-12 2.801269763228E-13 -1.355515450436952E-12 -3.13525060402365E-14
tp 1.838535883964337E-12 -4.830569523499213E-12 4.570735848624662E-9 -4.117745591020734E-11 1.330425844245457E-9 1.534611654078665E-12
node -1.087168953874389E-13 2.801269763228E-13 -4.117745591020734E-11 9.220228763574592E-10 -9.224103258756273E-10 -9.969654655183483E-11
peri 5.158087317635891E-13 -1.355515450436952E-12 1.330425844245457E-9 -9.224103258756273E-10 1.301320280173992E-9 9.897488365666717E-11
i 1.227753189641759E-14 -3.13525060402365E-14 1.534611654078665E-12 -9.969654655183483E-11 9.897488365666717E-11 7.545385743526575E-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 17.36   n/a MPCxxxxx  

351440 (2005 HX2)          Discovered 2005-Apr-17 by Spacewatch at Kitt Peak
Reference: 20130127/Numbers.arcLast Updated: 2013-01-31
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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