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66633 (1999 RB212)
Classification: Main-belt Asteroid          SPK-ID: 2066633
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2161059268299913 3.2047e-08  
a 2.685066446749474 1.2693e-08 au
q 2.104807673674568 8.7312e-08 au
i 10.63064913237555 4.9993e-06 deg
node 335.5938060661978 1.9624e-05 deg
peri 281.7536228292669 2.2599e-05 deg
M 82.33797346673566 1.165e-05 deg
tp 2459028.939650157623
(2020-Jun-28.43965016)
5.1633e-05 TDB
period 1607.055898657908
4.40
1.1396e-05
3.12e-08
d
yr
n .2240121207362139 1.5885e-09 deg/d
Q 3.265325219824381 1.5436e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1443  
   data-arc span      7958 days (21.79 yr)  
   first obs. used      1999-09-05  
   last obs. used      2021-06-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49852  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 14:30:34  

Additional Information
 Earth MOID = 1.12104 au 
 Jupiter MOID = 1.96823 au 
 T_jup = 3.317 
[ 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 14.09   n/a E2021B10  
diameter diameter 8.430 km 0.166 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.082   0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66633 (1999 RB212)          Discovered 1999-Sep-08 by LINEAR at Socorro
Reference: 20030910/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
1965-Apr-11 22:40 00:01 Jupiter 1.95555161858268 1.95555113217187 1.9555521049936 1.18978821971388 0.741162088222018 2438862.444369444 1.10266612176447 315.457254870531 292.86752510893 68.2882702079868 2221575.45494703 T 31 CATAB v2.0g-lin.ifort 2021-Jul-09 14:30:38 2021-Jul-09 14:30
2084-Apr-04 17:10 00:02 Jupiter 1.96518056382227 1.96518007426877 1.96518105337511 1.46244594318967 1.12991943191084 2482320.215479269 1.51261169245506 235.5968468244 81.3994166520225 -12.6211758900284 1125505.68081553 T 31 CATAB v2.0g-lin.ifort 2021-Jul-09 14:30:38 2021-Jul-09 14:30
2119-Jan-29 17:43 00:02 Jupiter 1.97988937128543 1.97988869736132 1.97989004521044 1.52043965247698 1.20669409391161 2495037.238011444 2.31641395791784 333.537326598085 81.6402377125363 23.126254657936 1174199.78946419 T 31 CATAB v2.0g-lin.ifort 2021-Jul-09 14:30:38 2021-Jul-09 14:30

Alternate Designations
 1999 RB212 = 2000 XL27 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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