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18939 Sariancel (2000 QZ48)
Classification: Main-belt Asteroid          SPK-ID: 2018939
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ 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 .09996546184092729 3.7288e-08  
a 3.125058829626834 1.471e-08 au
q 2.812660880443119 1.1778e-07 au
i .1489897659143564 3.8112e-06 deg
node 221.7530593926226 0.001427 deg
peri 332.0326384650699 0.0014271 deg
M 54.79756979727409 1.7312e-05 deg
tp 2459089.354242657078
(2020-Aug-27.85424266)
9.6983e-05 TDB
period 2017.835335627465
5.52
1.4248e-05
3.901e-08
d
yr
n .1784090077340501 1.2597e-09 deg/d
Q 3.437456778810548 1.6181e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2018  
   data-arc span      15638 days (42.81 yr)  
   first obs. used      1978-09-02  
   last obs. used      2021-06-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48041  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 04:44:13  

Additional Information
 Earth MOID = 1.81259 au 
 Jupiter MOID = 1.51846 au 
 T_jup = 3.207 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456863.5 (2014-Jul-25.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1016372885338532 3.7192e-08  
q 2.809247860004565 1.1779e-07 au
tp 2457065.150128290259
(2015-Feb-11.65012829)
9.608e-05 TDB
node 222.0333501160752 0.0014358 deg
peri 330.8509901083128 0.0014359 deg
i .1481782079446063 3.808e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2018  
   data-arc span      15638 days (42.81 yr)  
   first obs. used      1978-09-02  
   last obs. used      2021-06-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48041  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 04:44:13  

Additional Information
 Jupiter MOID = 1.51846 au 
 T_jup = 3.207 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.383279331996598E-15 -4.353139905066238E-15 -1.213074325277609E-13 6.846941431587567E-15 8.431824254210034E-15 -2.876491518611343E-17
q -4.353139905066238E-15 1.387483673155759E-14 2.512137288488672E-13 -6.308824374052248E-14 -1.278262715758865E-14 1.287436822838474E-16
tp -1.213074325277609E-13 2.512137288488672E-13 9.231334049769354E-9 3.624641520621625E-11 1.667754055670544E-9 4.888389524831277E-15
node 6.846941431587567E-15 -6.308824374052248E-14 3.624641520621625E-11 2.061461686038399E-6 -2.061451087498319E-6 -8.410531065018251E-10
peri 8.431824254210034E-15 -1.278262715758865E-14 1.667754055670544E-9 -2.061451087498319E-6 2.061763301460992E-6 8.410569570398486E-10
i -2.876491518611343E-17 1.287436822838474E-16 4.888389524831277E-15 -8.410531065018251E-10 8.410569570398486E-10 1.450059918425812E-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 13.66   n/a E2021B10  
diameter diameter 10.839 km 0.232 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 7.569 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.; Navarro-Meza, S.; McNeill, A.; Trilling, D.E.; et al. (2020) Ap. J. Suppl. Ser. 247, A13.]
geometric albedo albedo 0.066   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18939 Sariancel           Discovered 2000 Aug. 24 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Sari Ancel (b. 1988) was awarded fourth place in the 2003 Intel International Science and Engineering Fair for her behavioral and social sciences project. She attends the Nicolet High School, Glendale, Wisconsin, U.S.A.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20040830/MPCPages.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 2000 QZ48 = 1978 RY9 = 1998 FY16 = 1999 NQ12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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