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52957 (1998 TW1)
Classification: Main-belt Asteroid          SPK-ID: 2052957
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1444937793194792 5.3047e-08  
a 2.740043068808016 1.4075e-08 au
q 2.344123890297802 1.4634e-07 au
i 10.13665171879828 5.2819e-06 deg
node 54.10426841703497 2.4589e-05 deg
peri 333.3118203850576 2.7987e-05 deg
M 285.5849321948027 1.5061e-05 deg
tp 2459342.946626121488
(2021-May-08.44662612)
7.0505e-05 TDB
period 1656.664289098792
4.54
1.2765e-05
3.495e-08
d
yr
n .2173041348020101 1.6744e-09 deg/d
Q 3.13596224731823 1.6109e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1321  
   data-arc span      7961 days (21.80 yr)  
   first obs. used      1998-08-31  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5418  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 22:06:07  

Additional Information
 Earth MOID = 1.35455 au 
 Jupiter MOID = 2.3073 au 
 T_jup = 3.313 
[ 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 14.0   n/a MPO474414  
diameter diameter 4.172 km 1.369 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.255   0.281 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

52957 (1998 TW1)          Discovered 1998-Oct-14 by Korlevic, K. at Visnjan
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 TW1 = 2000 ES12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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