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181942 (1999 TZ176)
Classification: Main-belt Asteroid          SPK-ID: 2181942
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1578098311603466 4.1011e-08  
a 2.223640915031931 7.3375e-09 au
q 1.872728517669503 8.8299e-08 au
i 5.273992403890217 4.1319e-06 deg
node 205.814788937415 3.6211e-05 deg
peri 165.0857817976657 3.8001e-05 deg
M 153.8683584168968 1.2827e-05 deg
tp 2458682.842832992827
(2019-Jul-18.34283299)
4.1843e-05 TDB
period 1211.142966883813
3.32
5.9948e-06
1.641e-08
d
yr
n .2972398881415752 1.4712e-09 deg/d
Q 2.574553312394358 8.4955e-09 au
  Orbit Determination Parameters
   # obs. used (total)      666  
   data-arc span      7884 days (21.59 yr)  
   first obs. used      1999-09-30  
   last obs. used      2021-05-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51565  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:09:55  

Additional Information
 Earth MOID = .871861 au 
 Jupiter MOID = 2.89443 au 
 T_jup = 3.626 
[ 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 16.46   n/a E2021B55  

181942 (1999 TZ176)          Discovered 1999-Oct-10 by LINEAR at Socorro
Reference: 20080420/Numbers.arcLast Updated: 2008-04-23

Alternate Designations
 1999 TZ176 = 2002 NZ44 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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