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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1574259049255006 4.4857e-08  
a 2.803877366398663 1.7031e-08 au
q 2.362474434693224 1.3084e-07 au
i 2.537107027384202 3.9987e-06 deg
node 276.7638962708346 0.00011421 deg
peri 64.35130843943321 0.00011491 deg
M 190.8041807846484 1.3334e-05 deg
tp 2459406.479648992020
(2021-Jul-10.97964899)
6.6386e-05 TDB
period 1714.892690509228
4.70
1.5625e-05
4.278e-08
d
yr
n .2099256717299902 1.9127e-09 deg/d
Q 3.245280298104102 1.9712e-08 au
  Orbit Determination Parameters
   # obs. used (total)      814  
   data-arc span      11163 days (30.56 yr)  
   first obs. used      1988-09-11  
   last obs. used      2019-04-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .581  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 02:38:10  

Additional Information
 Earth MOID = 1.3545 au 
 Jupiter MOID = 2.15022 au 
 T_jup = 3.304 
[ 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 14.8   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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1974-Nov-04 21:05 00:01 Amphi 0.0466881779132685 0.0466806593410015 0.0466956968214186 3.64708717828499 3.64708714452363 2442356.378162988 1.1265321358775 424.116277030381 41.0715599267678 -28.0665688091126 81267.5663342337 T 21 CATAB v2.0e-lin.ifort 2019-Jul-13 02:38:14 2019-Jul-13 02:38
2013-Jun-30 21:01 < 00:01 Inter 0.0494358979541005 0.049434797789803 0.0494369981246764 4.48715868619515 4.48715862020109 2456474.375516311 0.674032258821961 63.39622375557 26.824664689074 -33.6561754594163 180908.343172723 T 21 CATAB v2.0e-lin.ifort 2019-Jul-13 02:38:14 2019-Jul-13 02:38
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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