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46545 (1988 RY12)
Classification: Main-belt Asteroid          SPK-ID: 2046545
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1576757345412536 4.0713e-08  
a 2.805986500718415 1.5807e-08 au
q 2.363550518104797 1.2186e-07 au
i 2.536414147866571 3.5847e-06 deg
node 276.7671475151488 9.4648e-05 deg
peri 64.0277623537302 9.545e-05 deg
M 317.0729477364445 1.3636e-05 deg
tp 2459405.217683818778
(2021-Jul-09.71768382)
6.5801e-05 TDB
period 1716.828020761379
4.70
1.4507e-05
3.972e-08
d
yr
n .2096890286310374 1.7718e-09 deg/d
Q 3.248422483332034 1.8299e-08 au
  Orbit Determination Parameters
   # obs. used (total)      935  
   data-arc span      11629 days (31.84 yr)  
   first obs. used      1988-09-11  
   last obs. used      2020-07-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55776  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 09:49:52  

Additional Information
 Earth MOID = 1.35456 au 
 Jupiter MOID = 2.14926 au 
 T_jup = 3.303 
[ 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 14.83   n/a E2021B10  
diameter diameter 4.973 km 0.383 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.149   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46545 (1988 RY12)          Discovered 1988-Sep-14 by Bus, S. J. at Cerro Tololo
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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