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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05908625811706605 3.4276e-08  
a 2.40878587512648 8.6427e-09 au
q 2.266459731160014 8.1255e-08 au
i 6.605142956010133 4.6127e-06 deg
node 176.404783700213 2.8021e-05 deg
peri 255.8298983009163 4.7359e-05 deg
M 186.2536599861899 3.7769e-05 deg
tp 2459859.535614706154
(2022-Oct-07.03561471)
0.00014358 TDB
period 1365.512627634962
3.74
7.3491e-06
2.012e-08
d
yr
n .2636372544013101 1.4189e-09 deg/d
Q 2.551112019092946 9.1533e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1448  
   data-arc span      10602 days (29.03 yr)  
   first obs. used      1991-06-15  
   last obs. used      2020-06-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50045  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 22:00:28  

Additional Information
 Earth MOID = 1.29053 au 
 Jupiter MOID = 2.58949 au 
 T_jup = 3.510 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456920.5 (2014-Sep-20.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05823168797118138 3.3965e-08  
q 2.268630013545754 8.0313e-08 au
tp 2457130.345550120455
(2015-Apr-17.84555012)
0.00014574 TDB
node 176.4302689865187 2.8031e-05 deg
peri 256.3682642911612 4.7929e-05 deg
i 6.6028770026004 4.6114e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1448  
   data-arc span      10602 days (29.03 yr)  
   first obs. used      1991-06-15  
   last obs. used      2020-06-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50045  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 22:00:28  

Additional Information
 Jupiter MOID = 2.58949 au 
 T_jup = 3.510 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.153622174502124E-15 -2.71414624582275E-15 -2.223122974305006E-12 1.880141336499606E-16 -6.130736394943727E-13 5.735028833887631E-16
q -2.71414624582275E-15 6.450110493580369E-15 5.32173521552899E-12 -8.265392260219726E-16 1.464177848600114E-12 -1.181277218576513E-15
tp -2.223122974305006E-12 5.32173521552899E-12 2.124082492996264E-8 -2.398042530128267E-12 5.673507572367867E-9 -1.962833785460977E-12
node 1.880141336499606E-16 -8.265392260219726E-16 -2.398042530128267E-12 7.857418969748195E-10 -7.808240134777566E-10 4.139633966206442E-11
peri -6.130736394943727E-13 1.464177848600114E-12 5.673507572367867E-9 -7.808240134777566E-10 2.297218443805711E-9 -4.16778266287138E-11
i 5.735028833887631E-16 -1.181277218576513E-15 -1.962833785460977E-12 4.139633966206442E-11 -4.16778266287138E-11 2.126473643177504E-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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