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70477 (1999 TC38)
Classification: Main-belt Asteroid          SPK-ID: 2070477
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05908625811279424 3.4275e-08  
a 2.408785874549008 8.5828e-09 au
q 2.266459730626953 8.1243e-08 au
i 6.605142734685703 4.5239e-06 deg
node 176.4047835049512 2.8009e-05 deg
peri 255.8298950359178 4.6968e-05 deg
M 186.2536637913584 3.7192e-05 deg
tp 2459859.535600035813
(2022-Oct-07.03560004)
0.00014132 TDB
period 1365.512627143919
3.74
7.2982e-06
1.998e-08
d
yr
n .263637254496115 1.4091e-09 deg/d
Q 2.551112018471064 9.0899e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1461  
   data-arc span      10602 days (29.03 yr)  
   first obs. used      1991-06-15  
   last obs. used      2020-06-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50018  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:49:58  

Additional Information
 Earth MOID = 1.29053 au 
 Jupiter MOID = 2.58949 au 
 T_jup = 3.510 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456945.5 (2014-Oct-15.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05822240933911363 3.3959e-08  
q 2.268607231529618 8.0291e-08 au
tp 2457130.402600935771
(2015-Apr-17.90260094)
0.00014379 TDB
node 176.4304367055859 2.8018e-05 deg
peri 256.3849194154024 4.7541e-05 deg
i 6.602933828736452 4.5226e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1461  
   data-arc span      10602 days (29.03 yr)  
   first obs. used      1991-06-15  
   last obs. used      2020-06-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50018  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:49:58  

Additional Information
 Jupiter MOID = 2.58949 au 
 T_jup = 3.510 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.153211060998804E-15 -2.713108779329585E-15 -2.221990998569213E-12 -1.789189082383738E-17 -6.125921891790225E-13 3.484690218233843E-16
q -2.713108779329585E-15 6.44658934997403E-15 5.296052501338875E-12 -2.873386097408849E-16 1.457199734496134E-12 -6.324638045008268E-16
tp -2.221990998569213E-12 5.296052501338875E-12 2.067547567574552E-8 -8.243750899762213E-13 5.53005118254065E-9 -9.710209417477213E-13
node -1.789189082383738E-17 -2.873386097408849E-16 -8.243750899762213E-13 7.850336593077273E-10 -7.797133620391839E-10 4.06450610316103E-11
peri -6.125921891790225E-13 1.457199734496134E-12 5.53005118254065E-9 -7.797133620391839E-10 2.260105891679925E-9 -4.066980460304562E-11
i 3.484690218233843E-16 -6.324638045008268E-16 -9.710209417477213E-13 4.06450610316103E-11 -4.066980460304562E-11 2.045401810258049E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.93   n/a E2021B10  
diameter diameter 2.470 km 0.468 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.74421 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 0.382   0.192 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

70477 (1999 TC38)          Discovered 1999-Oct-01 by CSS at Catalina
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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