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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 ]

[ 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 .1575718802299922 4.1419e-08  
a 2.804383309413465 1.5947e-08 au
q 2.362491358463577 1.2344e-07 au
i 2.537047307500666 3.6476e-06 deg
node 276.7652527208065 9.9351e-05 deg
peri 64.23339181818523 0.00010012 deg
M 274.9195436284406 1.3572e-05 deg
tp 2459405.898182620765
(2021-Jul-10.39818262)
6.6142e-05 TDB
period 1715.356874745929
4.70
1.4631e-05
4.006e-08
d
yr
n .2098688647826252 1.7901e-09 deg/d
Q 3.246275260363352 1.846e-08 au
  Orbit Determination Parameters
   # obs. used (total)      912  
   data-arc span      11602 days (31.76 yr)  
   first obs. used      1988-09-11  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5614  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 21:41:07  

Additional Information
 Earth MOID = 1.3554 au 
 Jupiter MOID = 2.152 au 
 T_jup = 3.304 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457024.5 (2015-Jan-02.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1566334758327785 4.1444e-08  
q 2.36516402778609 1.2338e-07 au
tp 2457692.467518973101
(2016-Oct-30.96751897)
6.1495e-05 TDB
node 276.7812062562341 9.9372e-05 deg
peri 64.62385611246044 0.00010016 deg
i 2.536456501082982 3.6472e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      912  
   data-arc span      11602 days (31.76 yr)  
   first obs. used      1988-09-11  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5614  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 21:41:07  

Additional Information
 Jupiter MOID = 2.152 au 
 T_jup = 3.304 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.717641787748808E-15 -5.090304832797082E-15 5.211258541182889E-14 1.761526944252088E-14 5.926390223151883E-14 -4.78690218560233E-16
q -5.090304832797082E-15 1.522317698728777E-14 4.68972217891346E-14 -5.397559961424887E-14 -1.452271958891724E-13 1.569901572997926E-15
tp 5.211258541182889E-14 4.68972217891346E-14 3.781622989889186E-9 -1.078656078958021E-12 7.91947841053992E-10 7.318712422867714E-13
node 1.761526944252088E-14 -5.397559961424887E-14 -1.078656078958021E-12 9.874803853437245E-9 -9.864357457983068E-9 -4.275263757925574E-11
peri 5.926390223151883E-14 -1.452271958891724E-13 7.91947841053992E-10 -9.864357457983068E-9 1.003136437136829E-8 4.283749495419182E-11
i -4.78690218560233E-16 1.569901572997926E-15 7.318712422867714E-13 -4.275263757925574E-11 4.283749495419182E-11 1.330184206322753E-11

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 14.8   n/a MPO290787  
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

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