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JPL Small-Body Database Browser
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52444 (1994 TQ2)
Classification: Main-belt Asteroid          SPK-ID: 2052444
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2576389763908126 5.0958e-08  
a 2.53144695522199 7.8888e-09 au
q 1.879247552890957 1.2954e-07 au
i 9.442881592241287 3.7151e-06 deg
node 40.46782058645657 2.7427e-05 deg
peri 295.1267789886565 2.7799e-05 deg
M 157.7869229841915 6.1761e-06 deg
tp 2458355.707198489332
(2018-Aug-25.20719849)
2.3887e-05 TDB
period 1471.132107488381
4.03
6.8768e-06
1.883e-08
d
yr
n .2447094983295668 1.1439e-09 deg/d
Q 3.183646357553023 9.9212e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1486  
   data-arc span      9331 days (25.55 yr)  
   first obs. used      1994-10-02  
   last obs. used      2020-04-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50071  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 10:22:34  

Additional Information
 Earth MOID = .893652 au 
 Jupiter MOID = 2.28218 au 
 T_jup = 3.385 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457213.5 (2015-Jul-10.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .259507230701199 5.1307e-08  
q 1.873156090321116 1.3061e-07 au
tp 2456882.954236590975
(2014-Aug-13.45423659)
2.1559e-05 TDB
node 40.55544022956902 2.749e-05 deg
peri 294.7079656985133 2.7837e-05 deg
i 9.437650179209575 3.7145e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1486  
   data-arc span      9331 days (25.55 yr)  
   first obs. used      1994-10-02  
   last obs. used      2020-04-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50071  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 10:22:34  

Additional Information
 Jupiter MOID = 2.28218 au 
 T_jup = 3.385 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.63239255733737E-15 -6.694734591201423E-15 2.395336805311795E-13 -2.440772930279164E-14 4.541257909421599E-14 -8.309279056685948E-15
q -6.694734591201423E-15 1.705958742266759E-14 -5.906321223735719E-13 6.32759454248423E-14 -1.115428303316226E-13 2.10873219884123E-14
tp 2.395336805311795E-13 -5.906321223735719E-13 4.647884266470995E-10 1.71803330451067E-12 1.234590544631474E-10 -1.851446210347462E-12
node -2.440772930279164E-14 6.32759454248423E-14 1.71803330451067E-12 7.556879567576681E-10 -7.444762118082135E-10 -4.422015961107784E-11
peri 4.541257909421599E-14 -1.115428303316226E-13 1.234590544631474E-10 -7.444762118082135E-10 7.749233628187098E-10 4.328036007839728E-11
i -8.309279056685948E-15 2.10873219884123E-14 -1.851446210347462E-12 -4.422015961107784E-11 4.328036007839728E-11 1.379783469570944E-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 15.2   n/a MPO449339  
diameter diameter 2.406 km 0.090 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.367   0.044 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

52444 (1994 TQ2)          Discovered 1994-Oct-02 by Endate, K., Watanabe, K. at Kitami
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1994 TQ2 = 1998 UH33 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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