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JPL Small-Body Database Browser
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52955 (1998 TJ)
Classification: Main-belt Asteroid          SPK-ID: 2052955
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 .1379813435797679 3.1783e-08  
a 2.305534887677496 8.1422e-09 au
q 1.987414086205726 7.2351e-08 au
i 5.733121514703996 4.4883e-06 deg
node 13.42387873674874 3.7228e-05 deg
peri 316.1746756359804 4.1035e-05 deg
M 110.9683380335071 1.6689e-05 deg
tp 2458606.358145756646
(2019-May-02.85814576)
5.927e-05 TDB
period 1278.662635145199
3.50
6.7735e-06
1.854e-08
d
yr
n .2815441619275283 1.4914e-09 deg/d
Q 2.623655689149266 9.2656e-09 au
  Orbit Determination Parameters
   # obs. used (total)      991  
   data-arc span      7817 days (21.40 yr)  
   first obs. used      1998-08-31  
   last obs. used      2020-01-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48179  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 10:38:54  

Additional Information
 Earth MOID = .98155 au 
 Jupiter MOID = 2.71406 au 
 T_jup = 3.569 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456978.5 (2014-Nov-17.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1388143986978416 3.1814e-08  
q 1.984829924853663 7.2486e-08 au
tp 2457328.398678147571
(2015-Nov-01.89867815)
5.9246e-05 TDB
node 13.46161123404672 3.7185e-05 deg
peri 316.2876852362768 4.0945e-05 deg
i 5.737844656487163 4.4906e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      991  
   data-arc span      7817 days (21.40 yr)  
   first obs. used      1998-08-31  
   last obs. used      2020-01-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48179  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 10:38:54  

Additional Information
 Jupiter MOID = 2.71406 au 
 T_jup = 3.569 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.012152561635059E-15 -2.295603621602237E-15 2.680225614634136E-13 6.454074765602049E-15 4.71204897620865E-14 -1.685276304829225E-15
q -2.295603621602237E-15 5.254255417081339E-15 -6.739245378328383E-13 -1.486273036818957E-14 -1.293436606164339E-13 3.951678149051373E-15
tp 2.680225614634136E-13 -6.739245378328383E-13 3.510080788435933E-9 2.831538307677006E-11 1.026065721505878E-9 1.173796069314074E-12
node 6.454074765602049E-15 -1.486273036818957E-14 2.831538307677006E-11 1.382757271081295E-9 -1.366844359453586E-9 4.946121995033735E-11
peri 4.71204897620865E-14 -1.293436606164339E-13 1.026065721505878E-9 -1.366844359453586E-9 1.676520172382978E-9 -4.876022191466347E-11
i -1.685276304829225E-15 3.951678149051373E-15 1.173796069314074E-12 4.946121995033735E-11 -4.876022191466347E-11 2.0165498513642E-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 15.6   n/a MPO502510  

52955 (1998 TJ)          Discovered 1998-Oct-10 by Kobayashi, T. at Oizumi
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 TJ = 2000 EH32 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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