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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2141400670978949 1.6657e-08  
a 2.222481639822891 5.5365e-09 au
q 1.746559272347378 3.7432e-08 au
i 5.556163226636091 1.4833e-06 deg
node 242.0857592731461 7.2213e-06 deg
peri 61.56632293128361 9.1512e-06 deg
M 194.8325614179581 5.4372e-06 deg
tp 2459755.736020340397
(2022-Jun-25.23602034)
1.9396e-05 TDB
period 1210.195962585302
3.31
4.5222e-06
1.238e-08
d
yr
n .2974724847296167 1.1116e-09 deg/d
Q 2.698404007298404 6.7221e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2314  
   data-arc span      11487 days (31.45 yr)  
   first obs. used      1989-10-07  
   last obs. used      2021-03-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48862  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 03:00:40  

Additional Information
 Earth MOID = .73774 au 
 Jupiter MOID = 2.54818 au 
 T_jup = 3.612 
[ show covariance matrix ]

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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