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19977 (1989 TQ)
Classification: Main-belt Asteroid          SPK-ID: 2019977
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2141753430499476 1.6646e-08  
a 2.22226289600259 5.538e-09 au
q 1.746308977904065 3.7402e-08 au
i 5.556181890667816 1.4787e-06 deg
node 242.0759938303897 7.2213e-06 deg
peri 61.60981422386693 9.1347e-06 deg
M 253.0965318429415 5.5401e-06 deg
tp 2459755.819571911692
(2022-Jun-25.31957191)
1.9367e-05 TDB
period 1210.017299889333
3.31
4.5231e-06
1.238e-08
d
yr
n .2975164074372533 1.1121e-09 deg/d
Q 2.698216814101115 6.7241e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2391  
   data-arc span      11565 days (31.66 yr)  
   first obs. used      1989-10-07  
   last obs. used      2021-06-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48729  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 18:17:55  

Additional Information
 Earth MOID = .738965 au 
 Jupiter MOID = 2.5476 au 
 T_jup = 3.612 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457143.5 (2015-May-01.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2142804655306323 1.6629e-08  
q 1.745759458695041 3.7352e-08 au
tp 2457336.118360127716
(2015-Nov-09.61836013)
1.5929e-05 TDB
node 242.1058222403401 7.2224e-06 deg
peri 61.65023250737603 9.1398e-06 deg
i 5.555766692193185 1.4788e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2391  
   data-arc span      11565 days (31.66 yr)  
   first obs. used      1989-10-07  
   last obs. used      2021-06-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48729  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 18:17:55  

Additional Information
 Jupiter MOID = 2.5476 au 
 T_jup = 3.612 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.765240394603907E-16 -6.169423277821742E-16 -5.602160032518488E-14 2.795641219090009E-14 -2.014625784066464E-14 -6.554115289393212E-15
q -6.169423277821742E-16 1.395166166556005E-15 1.33978307398574E-13 -6.292948393641922E-14 4.754741024600839E-14 1.523687835957025E-14
tp -5.602160032518488E-14 1.33978307398574E-13 2.537201779659061E-10 -7.447396462955127E-12 9.119651111732826E-11 1.340390264585123E-11
node 2.795641219090009E-14 -6.292948393641922E-14 -7.447396462955127E-12 5.216278205418377E-11 -5.235980365248899E-11 -2.564251849643848E-13
peri -2.014625784066464E-14 4.754741024600839E-14 9.119651111732826E-11 -5.235980365248899E-11 8.353651499598475E-11 4.424654455045384E-12
i -6.554115289393212E-15 1.523687835957025E-14 1.340390264585123E-11 -2.564251849643848E-13 4.424654455045384E-12 2.186770707904092E-12

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.10   n/a MPCxxxxx  
diameter diameter 4.302 km 0.125 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 10.4306 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Behrend, R. (2012) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.199   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19977 (1989 TQ)          Discovered 1989-Oct-07 by Mizuno, Y., Furuta, T. at Kani
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1989 TQ = 1992 NE 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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