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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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457103.5 (2015-Mar-22.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2150229500405726 3.2184e-08  
q 2.109234286200136 8.7407e-08 au
tp 2457420.312617747528
(2016-Feb-01.81261775)
5.176e-05 TDB
node 335.6411304297675 1.9635e-05 deg
peri 281.6187269557474 2.2618e-05 deg
i 10.62502585938047 4.9963e-06 deg
  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
 Jupiter MOID = 1.96823 au 
 T_jup = 3.317 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.035795027400553E-15 -2.795258383608691E-15 2.581325921089922E-13 3.41668366652125E-15 6.450646863858476E-14 5.275724149485202E-16
q -2.795258383608691E-15 7.640040808408169E-15 -7.373334883008696E-13 -1.00006785637753E-14 -1.895643090263741E-13 -1.937028457288664E-15
tp 2.581325921089922E-13 -7.373334883008696E-13 2.67911204029132E-9 9.183751992565503E-12 5.914401227380306E-10 1.237897014580732E-12
node 3.41668366652125E-15 -1.00006785637753E-14 9.183751992565503E-12 3.855283069893581E-10 -3.76428931303359E-10 -5.003119180123604E-12
peri 6.450646863858476E-14 -1.895643090263741E-13 5.914401227380306E-10 -3.76428931303359E-10 5.115570469989968E-10 5.135429083530127E-12
i 5.275724149485202E-16 -1.937028457288664E-15 1.237897014580732E-12 -5.003119180123604E-12 5.135429083530127E-12 2.496325455415767E-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 14.09   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

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