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30382 (2000 JB81)
Classification: Main-belt Asteroid          SPK-ID: 2030382
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1859783490983073 2.783e-08  
a 2.561656929037206 1.0422e-08 au
q 2.085244202418627 7.0962e-08 au
i 8.311755259954097 3.1555e-06 deg
node 95.16118367113144 2.9154e-05 deg
peri 206.2126424598843 3.1557e-05 deg
M 16.76515016237179 1.3954e-05 deg
tp 2459326.759537506468
(2021-Apr-22.25953751)
5.7925e-05 TDB
period 1497.544981972275
4.10
9.1388e-06
2.502e-08
d
yr
n .2403934468304773 1.467e-09 deg/d
Q 3.038069655655786 1.236e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1925  
   data-arc span      8639 days (23.65 yr)  
   first obs. used      1997-10-30  
   last obs. used      2021-06-25  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51273  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 06:43:15  

Additional Information
 Earth MOID = 1.07269 au 
 Jupiter MOID = 2.18733 au 
 T_jup = 3.396 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456895.5 (2014-Aug-26.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1861011420615148 2.7939e-08  
q 2.084171840193848 7.1077e-08 au
tp 2456329.388818172758
(2013-Feb-05.88881817)
5.4986e-05 TDB
node 95.29623083903599 2.9059e-05 deg
peri 205.5305558938643 3.1443e-05 deg
i 8.32557316216834 3.1612e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1925  
   data-arc span      8639 days (23.65 yr)  
   first obs. used      1997-10-30  
   last obs. used      2021-06-25  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51273  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 06:43:15  

Additional Information
 Jupiter MOID = 2.18733 au 
 T_jup = 3.396 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.806010264318424E-16 -1.97195242074593E-15 2.829846530040732E-13 -6.998245540484431E-16 7.358351275928174E-14 7.221258875825863E-18
q -1.97195242074593E-15 5.051896843215125E-15 -7.281252192796631E-13 2.083445748371592E-15 -1.832217359184548E-13 2.140588831970266E-16
tp 2.829846530040732E-13 -7.281252192796631E-13 3.023487443984281E-9 7.642629756320872E-12 6.85382298649573E-10 1.501896933982237E-13
node -6.998245540484431E-16 2.083445748371592E-15 7.642629756320872E-12 8.444124432300405E-10 -8.334618966497782E-10 -8.218365038684932E-12
peri 7.358351275928174E-14 -1.832217359184548E-13 6.85382298649573E-10 -8.334618966497782E-10 9.886790814320825E-10 8.187390495499165E-12
i 7.221258875825863E-18 2.140588831970266E-16 1.501896933982237E-13 -8.218365038684932E-12 8.187390495499165E-12 9.993004974597104E-12

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.43   n/a E2021B10  
diameter diameter 3.260 km 0.792 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 4.253 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.381   0.246 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

30382 (2000 JB81)          Discovered 2000-May-15 by Crni Vrh at Crni Vrh
Reference: 20011002/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 2000 JB81 = 1999 CG35 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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