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135905 (2002 TR90)
Classification: Main-belt Asteroid          SPK-ID: 2135905
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09347008264325507 4.939e-08  
a 2.766976147067912 1.6841e-08 au
q 2.508346657929558 1.4374e-07 au
i 5.125367873955005 5.8532e-06 deg
node 338.6377555004157 4.0202e-05 deg
peri 56.26494590718752 4.9211e-05 deg
M 334.3107862217506 2.8421e-05 deg
tp 2459320.465083840460
(2021-Apr-15.96508384)
0.00013287 TDB
period 1681.15032851381
4.60
1.5348e-05
4.202e-08
d
yr
n .2141390891070708 1.955e-09 deg/d
Q 3.025605636206265 1.8415e-08 au
  Orbit Determination Parameters
   # obs. used (total)      623  
   data-arc span      8062 days (22.07 yr)  
   first obs. used      1998-12-17  
   last obs. used      2021-01-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55015  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 18:15:06  

Additional Information
 Earth MOID = 1.51762 au 
 Jupiter MOID = 2.35926 au 
 T_jup = 3.327 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457754.5 (2017-Jan-01.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09635965109450254 4.9914e-08  
q 2.500489901597621 1.458e-07 au
tp 2457634.374973189663
(2016-Sep-02.87497319)
0.00012505 TDB
node 338.8647900350961 4.0257e-05 deg
peri 55.2583849848422 4.8491e-05 deg
i 5.122393533408672 5.8508e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      623  
   data-arc span      8062 days (22.07 yr)  
   first obs. used      1998-12-17  
   last obs. used      2021-01-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55015  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 18:15:06  

Additional Information
 Jupiter MOID = 2.35926 au 
 T_jup = 3.327 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.491378667105135E-15 -7.245257413535717E-15 -2.883590604339506E-12 9.973619418239337E-15 -5.753592711295464E-13 1.104505906874534E-15
q -7.245257413535717E-15 2.1258789850692E-14 8.06781286642865E-12 -2.914725815122972E-14 1.608161300743601E-12 -2.647534472062378E-15
tp -2.883590604339506E-12 8.06781286642865E-12 1.563854005871807E-8 -2.566754239383835E-11 3.387370001981926E-9 -1.085990094632243E-12
node 9.973619418239337E-15 -2.914725815122972E-14 -2.566754239383835E-11 1.620665834319854E-9 -1.619041463969711E-9 3.04278739679911E-11
peri -5.753592711295464E-13 1.608161300743601E-12 3.387370001981926E-9 -1.619041463969711E-9 2.3514206051952E-9 -3.05579446706509E-11
i 1.104505906874534E-15 -2.647534472062378E-15 -1.085990094632243E-12 3.04278739679911E-11 -3.05579446706509E-11 3.423143075957512E-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 15.47   n/a MPCxxxxx  
rotation period rot_per 7.43 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Erasmus, N.; McNeill, A.; Mommert, N.; Trilling, D.E.; et al. (2019) Ap. J. Suppl. Series 242, A15.]

135905 (2002 TR90)          Discovered 2002-Oct-03 by NEAT at Palomar
Reference: 20060907/Numbers.arcLast Updated: 2006-09-10

[ show close-approach data ]
Alternate Designations
 2002 TR90 = 2000 GJ180 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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