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74832 (1999 TH26)
Classification: Main-belt Asteroid          SPK-ID: 2074832
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1967052193570914 3.7819e-08  
a 2.387118457645179 9.1718e-09 au
q 1.917559797802722 8.9024e-08 au
i 10.06668257267133 4.1654e-06 deg
node 214.973314213933 2.3277e-05 deg
peri 279.1025595858725 2.616e-05 deg
M 134.7972750361441 1.0015e-05 deg
tp 2458496.084997237694
(2019-Jan-12.58499724)
3.7633e-05 TDB
period 1347.129613308126
3.69
7.7639e-06
2.126e-08
d
yr
n .267234864740263 1.5402e-09 deg/d
Q 2.856677117487635 1.0976e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1312  
   data-arc span      7594 days (20.79 yr)  
   first obs. used      1999-10-03  
   last obs. used      2020-07-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48687  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:42:10  

Additional Information
 Earth MOID = .961133 au 
 Jupiter MOID = 2.28117 au 
 T_jup = 3.487 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456641.5 (2013-Dec-15.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1971879886878636 3.7771e-08  
q 1.914974063381775 8.8964e-08 au
tp 2457150.172321461185
(2015-May-07.67232146)
3.8828e-05 TDB
node 215.0520550697541 2.3268e-05 deg
peri 278.882472036466 2.6144e-05 deg
i 10.07131624623483 4.1669e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1312  
   data-arc span      7594 days (20.79 yr)  
   first obs. used      1999-10-03  
   last obs. used      2020-07-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48687  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:42:10  

Additional Information
 Jupiter MOID = 2.28117 au 
 T_jup = 3.487 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.426672697613359E-15 -3.349260496047423E-15 9.927533947851585E-14 5.04871550878196E-15 5.633729287445983E-14 -4.72509194312105E-15
q -3.349260496047423E-15 7.914571341152947E-15 -3.18188587348047E-13 -1.003343282484113E-14 -1.639288691801721E-13 1.083770941415548E-14
tp 9.927533947851585E-14 -3.18188587348047E-13 1.507626117610254E-9 -1.265903019856774E-11 4.755059158554014E-10 1.43662439656655E-12
node 5.04871550878196E-15 -1.003343282484113E-14 -1.265903019856774E-11 5.413860112617503E-10 -5.364208041966091E-10 -8.523082727480657E-12
peri 5.633729287445983E-14 -1.639288691801721E-13 4.755059158554014E-10 -5.364208041966091E-10 6.834929065134316E-10 8.71344113807932E-12
i -4.72509194312105E-15 1.083770941415548E-14 1.43662439656655E-12 -8.523082727480657E-12 8.71344113807932E-12 1.736335483843266E-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 14.83   n/a E2021B10  
diameter diameter 5.119 km 0.132 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 123.114 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 0.097   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74832 (1999 TH26)          Discovered 1999-Oct-03 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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