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187004 (2004 TV121)
Classification: Main-belt Asteroid          SPK-ID: 2187004
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1698543215852437 4.9431e-08  
a 3.155401959904192 3.7025e-08 au
q 2.619443300675917 1.6391e-07 au
i 6.547286994622567 7.3053e-06 deg
node 206.7324704566431 4.1125e-05 deg
peri 106.1103549523741 4.6516e-05 deg
M 10.30012141082061 2.1196e-05 deg
tp 2459141.923919763180
(2020-Oct-19.42391976)
0.00012016 TDB
period 2047.295176841538
5.61
3.6034e-05
9.866e-08
d
yr
n .175841766283741 3.095e-09 deg/d
Q 3.691360619132467 4.3314e-08 au
  Orbit Determination Parameters
   # obs. used (total)      363  
   data-arc span      8001 days (21.91 yr)  
   first obs. used      1998-08-26  
   last obs. used      2020-07-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5344  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 07:55:40  

Additional Information
 Earth MOID = 1.61344 au 
 Jupiter MOID = 1.67003 au 
 T_jup = 3.174 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.43   n/a E2021B55  

187004 (2004 TV121)          Discovered 2004-Oct-07 by LONEOS at Anderson Mesa
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22

[ show close-approach data ]
Alternate Designations
 2004 TV121 = 1998 QB30 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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