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135282 (2001 SD142)
Classification: Main-belt Asteroid          SPK-ID: 2135282
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06625114590268479 6.6842e-08  
a 2.917086466725662 2.2525e-08 au
q 2.723826145607873 1.8972e-07 au
i 4.751446190679816 5.0474e-06 deg
node 306.3957300953467 7.4733e-05 deg
peri 241.2809470716385 8.258e-05 deg
M 123.4938050361277 3.2295e-05 deg
tp 2458576.240655669582
(2019-Apr-02.74065567)
0.0001654 TDB
period 1819.794635797364
4.98
2.1078e-05
5.771e-08
d
yr
n .1978245198213049 2.2914e-09 deg/d
Q 3.110346787843451 2.4018e-08 au
  Orbit Determination Parameters
   # obs. used (total)      782  
   data-arc span      11475 days (31.42 yr)  
   first obs. used      1989-02-11  
   last obs. used      2020-07-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52399  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 18:12:19  

Additional Information
 Earth MOID = 1.72846 au 
 Jupiter MOID = 1.88171 au 
 T_jup = 3.273 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456933.5 (2014-Oct-03.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06426571376124059 6.6908e-08  
q 2.726409688996867 1.8886e-07 au
tp 2456748.100767546747
(2014-Mar-31.60076755)
0.00017628 TDB
node 306.4607124386332 7.4863e-05 deg
peri 239.1350133536677 8.3039e-05 deg
i 4.748847352123671 5.0366e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      782  
   data-arc span      11475 days (31.42 yr)  
   first obs. used      1989-02-11  
   last obs. used      2020-07-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52399  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 18:12:19  

Additional Information
 Jupiter MOID = 1.88171 au 
 T_jup = 3.273 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.476664998833878E-15 -1.25722038367817E-14 -2.323061243546639E-12 3.396206779713422E-14 -5.278184541630186E-13 -1.748028411807613E-15
q -1.25722038367817E-14 3.566735081940001E-14 5.432316789437778E-12 -9.15938711351186E-14 1.263935985295778E-12 5.134473624855508E-15
tp -2.323061243546639E-12 5.432316789437778E-12 3.107381100403346E-8 -6.014931733339566E-11 6.399619679487573E-9 -9.243632135734457E-13
node 3.396206779713422E-14 -9.15938711351186E-14 -6.014931733339566E-11 5.604508184109341E-9 -5.59675631099582E-9 1.652584522684896E-10
peri -5.278184541630186E-13 1.263935985295778E-12 6.399619679487573E-9 -5.59675631099582E-9 6.895486790911581E-9 -1.648935620077365E-10
i -1.748028411807613E-15 5.134473624855508E-15 -9.243632135734457E-13 1.652584522684896E-10 -1.648935620077365E-10 2.536735085759801E-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 14.54   n/a E2021B55  
diameter diameter 4.880 km 0.392 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.141   0.034 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

135282 (2001 SD142)          Discovered 2001-Sep-16 by LINEAR at Socorro
Reference: 20060907/Numbers.arcLast Updated: 2006-09-10

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