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102476 (1999 TC246)
Classification: Main-belt Asteroid          SPK-ID: 2102476
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .161928547584837 3.3304e-08  
a 2.426230601468858 9.7393e-09 au
q 2.03335460406712 8.2474e-08 au
i 5.633289058181607 3.046e-06 deg
node 133.0488949840447 4.9931e-05 deg
peri 320.1406080758875 5.2218e-05 deg
M 176.342944544961 1.5911e-05 deg
tp 2458524.335869266579
(2019-Feb-09.83586927)
5.9387e-05 TDB
period 1380.373270346342
3.78
8.3115e-06
2.276e-08
d
yr
n .2607990227959676 1.5703e-09 deg/d
Q 2.819106598870596 1.1316e-08 au
  Orbit Determination Parameters
   # obs. used (total)      836  
   data-arc span      7619 days (20.86 yr)  
   first obs. used      1999-10-08  
   last obs. used      2020-08-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50938  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:42:10  

Additional Information
 Earth MOID = 1.05352 au 
 Jupiter MOID = 2.35859 au 
 T_jup = 3.486 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457398.5 (2016-Jan-11.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1624774420553574 3.3128e-08  
q 2.03217261217919 8.1965e-08 au
tp 2457146.049460687610
(2015-May-03.54946069)
5.6933e-05 TDB
node 133.0768788946984 4.9933e-05 deg
peri 320.4463905434193 5.2202e-05 deg
i 5.633197246022984 3.0462e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      836  
   data-arc span      7619 days (20.86 yr)  
   first obs. used      1999-10-08  
   last obs. used      2020-08-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50938  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:42:10  

Additional Information
 Jupiter MOID = 2.35859 au 
 T_jup = 3.486 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.097479163831933E-15 -2.702010594784251E-15 -9.848370609590273E-13 -1.609555215023086E-14 -2.793822836488763E-13 -8.291211058012415E-16
q -2.702010594784251E-15 6.718271020855451E-15 2.481706809508489E-12 4.073697803988399E-14 7.043586306802791E-13 2.11529010601487E-15
tp -9.848370609590273E-13 2.481706809508489E-12 3.241407653108476E-9 2.888467403054039E-11 8.988857617587682E-10 7.053200151739967E-13
node -1.609555215023086E-14 4.073697803988399E-14 2.888467403054039E-11 2.493269994049289E-9 -2.472793622130124E-9 2.653271503544988E-11
peri -2.793822836488763E-13 7.043586306802791E-13 8.988857617587682E-10 -2.472793622130124E-9 2.725014513003611E-9 -2.618362381091087E-11
i -8.291211058012415E-16 2.11529010601487E-15 7.053200151739967E-13 2.653271503544988E-11 -2.618362381091087E-11 9.279488475319552E-12

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 15.98   n/a E2021B55  
diameter diameter 3.046 km 0.874 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 14.9813 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:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.083   0.033 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

102476 (1999 TC246)          Discovered 1999-Oct-08 by CSS at Catalina
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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