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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 ]

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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06744245403980741 6.6834e-08  
a 2.914039111529724 2.1676e-08 au
q 2.717509162680179 1.9e-07 au
i 4.749605127023512 5.0409e-06 deg
node 306.3828216466031 7.4418e-05 deg
peri 241.0528639324007 8.1561e-05 deg
M 162.4854009666096 3.0811e-05 deg
tp 2458576.425444430389
(2019-Apr-02.92544443)
0.0001577 TDB
period 1816.943788480594
4.97
2.0273e-05
5.55e-08
d
yr
n .1981349132991326 2.2107e-09 deg/d
Q 3.110569060379268 2.3138e-08 au
  Orbit Determination Parameters
   # obs. used (total)      788  
   data-arc span      11819 days (32.36 yr)  
   first obs. used      1989-02-11  
   last obs. used      2021-06-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52957  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 15:01:17  

Additional Information
 Earth MOID = 1.72358 au 
 Jupiter MOID = 1.8806 au 
 T_jup = 3.274 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457007.5 (2014-Dec-16.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .064303016670741 6.6682e-08  
q 2.726487889147506 1.885e-07 au
tp 2456748.321557397022
(2014-Mar-31.82155740)
0.00017138 TDB
node 306.4605510452189 7.4455e-05 deg
peri 239.184579847323 8.2196e-05 deg
i 4.748852380866435 5.0272e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      788  
   data-arc span      11819 days (32.36 yr)  
   first obs. used      1989-02-11  
   last obs. used      2021-06-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52957  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 15:01:17  

Additional Information
 Jupiter MOID = 1.8806 au 
 T_jup = 3.274 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.446450690436363E-15 -1.250865464047564E-14 -2.114575798696048E-12 3.367865221318029E-14 -4.828356152156359E-13 -1.764442747065518E-15
q -1.250865464047564E-14 3.553389572942498E-14 5.002493355118023E-12 -9.118345096388758E-14 1.171247952196125E-12 5.181972267723336E-15
tp -2.114575798696048E-12 5.002493355118023E-12 2.937231172346424E-8 -5.608446292814484E-11 6.033243202140644E-9 -9.038105389007615E-13
node 3.367865221318029E-14 -9.118345096388758E-14 -5.608446292814484E-11 5.543619619086133E-9 -5.535225516553709E-9 1.675492314549264E-10
peri -4.828356152156359E-13 1.171247952196125E-12 6.033243202140644E-9 -5.535225516553709E-9 6.756151348955405E-9 -1.671714291853952E-10
i -1.764442747065518E-15 5.181972267723336E-15 -9.038105389007615E-13 1.675492314549264E-10 -1.671714291853952E-10 2.527251251516648E-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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