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54660 (2000 UJ1)
Classification: Amor [NEO]          SPK-ID: 2054660
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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 91 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2806491324473143 4.5742e-08  
a 1.476795013578098 2.1029e-09 au
q 1.062333774214885 6.7066e-08 au
i 46.68582775024137 1.225e-05 deg
node 223.7157430185684 4.4533e-06 deg
peri 158.011987923026 1.0142e-05 deg
M 78.43515758652477 8.1602e-06 deg
tp 2459057.680658784969
(2020-Jul-27.18065879)
1.4676e-05 TDB
period 655.5091418117369
1.79
1.4002e-06
3.834e-09
d
yr
n .5491914254696886 1.1731e-09 deg/d
Q 1.891256252941311 2.6931e-09 au
  Orbit Determination Parameters
   # obs. used (total)      393  
   # delay obs. used      0  
   # Doppler obs. used      3  
   data-arc span      7223 days (19.78 yr)  
   first obs. used      2000-10-19  
   last obs. used      2020-07-29  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45684  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 11:03:13  

Additional Information
 Earth MOID = .0872007 au 
 Jupiter MOID = 3.57871 au 
 T_jup = 4.225 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457013.5 (2014-Dec-22.0) TDB
Reference: JPL 91 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2808925445850484 4.5807e-08  
q 1.062090882594339 6.7056e-08 au
tp 2457090.975064136960
(2015-Mar-09.47506414)
1.2503e-05 TDB
node 223.7340505753939 4.4521e-06 deg
peri 157.9619915882658 1.0128e-05 deg
i 46.6831349960737 1.2251e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      393  
   # delay obs. used      0  
   # Doppler obs. used      3  
   data-arc span      7223 days (19.78 yr)  
   first obs. used      2000-10-19  
   last obs. used      2020-07-29  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45684  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 11:03:13  

Additional Information
 Jupiter MOID = 3.57871 au 
 T_jup = 4.225 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.098257826304909E-15 -3.070926698453037E-15 3.002150693685883E-13 -1.497305205114986E-14 2.401768782115887E-13 -6.868660230122447E-14
q -3.070926698453037E-15 4.496523909427188E-15 -4.359064213253867E-13 2.171779313578101E-14 -3.494335411708875E-13 9.861641246479116E-14
tp 3.002150693685883E-13 -4.359064213253867E-13 1.563290039476755E-10 -2.151782822328128E-12 1.14381244911271E-10 3.642408348056979E-12
node -1.497305205114986E-14 2.171779313578101E-14 -2.151782822328128E-12 1.982133259262577E-11 -1.493355339497401E-11 9.573631470678665E-12
peri 2.401768782115887E-13 -3.494335411708875E-13 1.14381244911271E-10 -1.493355339497401E-11 1.025704938156834E-10 -3.749225886403442E-12
i -6.868660230122447E-14 9.861641246479116E-14 3.642408348056979E-12 9.573631470678665E-12 -3.749225886403442E-12 1.500867483423778E-10

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 17.86   n/a E2021B10  
rotation period rot_per 5.43 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Bevins, E.; McLelland, K. (2011) Posting on CALL web site. http://www.minorplanet.info/call.html]

54660 (2000 UJ1)          Discovered 2000-Oct-19 by LINEAR at Socorro
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

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