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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 90 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2806390344297433 4.5746e-08  
a 1.476763123409013 2.1137e-09 au
q 1.062325746374056 6.7059e-08 au
i 46.68662487843249 1.225e-05 deg
node 223.7169239387009 4.4532e-06 deg
peri 158.0040629611657 1.0142e-05 deg
M 328.5994280656071 8.0211e-06 deg
tp 2459057.674153454580
(2020-Jul-27.17415345)
1.4678e-05 TDB
period 655.4879091582642
1.79
1.4073e-06
3.853e-09
d
yr
n .5492092149530097 1.1791e-09 deg/d
Q 1.891200500443971 2.7069e-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.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45684  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jul-30 07:23:51  

Additional Information
 Earth MOID = .0881111 au 
 Jupiter MOID = 3.57768 au 
 T_jup = 4.225 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457013.5 (2014-Dec-22.0) TDB
Reference: JPL 90 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2808925446213784 4.5807e-08  
q 1.062090882581865 6.7056e-08 au
tp 2457090.975064137664
(2015-Mar-09.47506414)
1.2503e-05 TDB
node 223.7340505952189 4.4521e-06 deg
peri 157.961991612166 1.0128e-05 deg
i 46.68313497859907 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.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45684  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jul-30 07:23:51  

Additional Information
 Jupiter MOID = 3.57768 au 
 T_jup = 4.225 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.098258693936345E-15 -3.070927357940269E-15 3.002142754314438E-13 -1.497310074315369E-14 2.401769238159988E-13 -6.86865569630523E-14
q -3.070927357940269E-15 4.496524052787924E-15 -4.359050440977072E-13 2.171785740811016E-14 -3.494333569069788E-13 9.861631687319181E-14
tp 3.002142754314438E-13 -4.359050440977072E-13 1.563285413612855E-10 -2.151788297398138E-12 1.143807885150895E-10 3.642464041464152E-12
node -1.497310074315369E-14 2.171785740811016E-14 -2.151788297398138E-12 1.982133358377455E-11 -1.493356328432873E-11 9.573649174260731E-12
peri 2.401769238159988E-13 -3.494333569069788E-13 1.143807885150895E-10 -1.493356328432873E-11 1.025703372465609E-10 -3.749203553293973E-12
i -6.86865569630523E-14 9.861631687319181E-14 3.642464041464152E-12 9.573649174260731E-12 -3.749203553293973E-12 1.500868324295194E-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 17.8   n/a MPO452913  
rotation period rot_per 5.43 h n/a LCDB (Rev. 2019-August); 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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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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