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135273 (2001 SR123)
Classification: Main-belt Asteroid          SPK-ID: 2135273
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09924201109018452 4.3563e-08  
a 3.087225907562352 2.3384e-08 au
q 2.780843399806144 1.3962e-07 au
i 9.079503798771587 4.9466e-06 deg
node 335.2484233813894 2.3519e-05 deg
peri 2.646543543404289 3.0535e-05 deg
M 203.8303326539021 2.0925e-05 deg
tp 2460059.998704641353
(2023-Apr-25.49870464)
0.00011977 TDB
period 1981.3036611339
5.42
2.2511e-05
6.163e-08
d
yr
n .1816985488201097 2.0644e-09 deg/d
Q 3.39360841531856 2.5705e-08 au
  Orbit Determination Parameters
   # obs. used (total)      682  
   data-arc span      7199 days (19.71 yr)  
   first obs. used      2001-08-15  
   last obs. used      2021-05-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5448  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 09:21:03  

Additional Information
 Earth MOID = 1.76971 au 
 Jupiter MOID = 1.97663 au 
 T_jup = 3.199 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457714.5 (2016-Nov-22.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09805590162594259 4.3575e-08  
q 2.784088800443303 1.3946e-07 au
tp 2458077.571267212245
(2017-Nov-20.07126721)
0.00011144 TDB
node 335.2752777724926 2.3524e-05 deg
peri 2.564795648945556 3.0687e-05 deg
i 9.078498890857114 4.9459e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      682  
   data-arc span      7199 days (19.71 yr)  
   first obs. used      2001-08-15  
   last obs. used      2021-05-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5448  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 09:21:03  

Additional Information
 Jupiter MOID = 1.97663 au 
 T_jup = 3.199 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.898819295457868E-15 -6.009871869636175E-15 2.137836257398243E-13 -3.33290536433332E-15 4.962104576026902E-14 5.17579011077187E-16
q -6.009871869636175E-15 1.944919003770535E-14 1.461534316432036E-13 8.184843275071465E-15 -2.560271542561008E-14 -1.389059758806878E-15
tp 2.137836257398243E-13 1.461534316432036E-13 1.241885772730715E-8 -1.057740413571633E-11 2.209212065276599E-9 -2.175390199367432E-12
node -3.33290536433332E-15 8.184843275071465E-15 -1.057740413571633E-11 5.533793549536493E-10 -5.480340351619799E-10 1.669946030786369E-11
peri 4.962104576026902E-14 -2.560271542561008E-14 2.209212065276599E-9 -5.480340351619799E-10 9.416652879496695E-10 -1.687053443907364E-11
i 5.17579011077187E-16 -1.389059758806878E-15 -2.175390199367432E-12 1.669946030786369E-11 -1.687053443907364E-11 2.446201477356857E-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 14.85   n/a E2021B55  
diameter diameter 4.467 km 1.269 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.128   0.077 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

135273 (2001 SR123)          Discovered 2001-Sep-16 by LINEAR at Socorro
Reference: 20060907/Numbers.arcLast Updated: 2006-09-10

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