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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1440155344204841 4.3497e-08  
a 2.738113893982327 1.2829e-08 au
q 2.343782958236309 1.2341e-07 au
i 10.13566188368417 4.3348e-06 deg
node 54.06768975434392 2.3584e-05 deg
peri 333.5317267857556 2.7118e-05 deg
M 328.8620197447751 1.446e-05 deg
tp 2459343.640862093090
(2021-May-09.14086209)
6.6866e-05 TDB
period 1654.914992274282
4.53
1.1631e-05
3.184e-08
d
yr
n .2175338320582054 1.5288e-09 deg/d
Q 3.132444829728344 1.4676e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1541  
   data-arc span      8168 days (22.36 yr)  
   first obs. used      1998-08-31  
   last obs. used      2021-01-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52352  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 10:49:16  

Additional Information
 Earth MOID = 1.35302 au 
 Jupiter MOID = 2.31126 au 
 T_jup = 3.314 
[ 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 14.01   n/a E2021B10  
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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