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46478 (1097 T-2)
Classification: Main-belt Asteroid          SPK-ID: 2046478
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08093720017744194 3.4617e-08  
a 2.78025754285215 1.0734e-08 au
q 2.555231281561483 9.7595e-08 au
i 1.836713593236857 3.9427e-06 deg
node 300.0061835348113 0.00010989 deg
peri 69.9017763840006 0.00011262 deg
M 61.25852577608364 2.3909e-05 deg
tp 2458912.368985325053
(2020-Mar-03.86898533)
0.00011223 TDB
period 1693.269042453477
4.64
9.8065e-06
2.685e-08
d
yr
n .2126064972394316 1.2313e-09 deg/d
Q 3.005283804142818 1.1603e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1365  
   data-arc span      17312 days (47.40 yr)  
   first obs. used      1973-09-19  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5476  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 09:49:25  

Additional Information
 Earth MOID = 1.55361 au 
 Jupiter MOID = 2.40401 au 
 T_jup = 3.328 
[ 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 14.82   n/a E2021B10  
diameter diameter 4.505 km 0.217 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.126   0.022 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46478 (1097 T-2)          Discovered 1973-Sep-29 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1097 T-2 = 2001 RP74 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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