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66637 (1999 RC213)
Classification: Main-belt Asteroid          SPK-ID: 2066637
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1158964645313544 5.2181e-08  
a 2.627994180227279 1.2916e-08 au
q 2.323418945929963 1.4304e-07 au
i 9.119000315632674 4.865e-06 deg
node 310.4022040723628 2.4176e-05 deg
peri 54.06557296155311 3.1215e-05 deg
M 44.30521844612259 1.7403e-05 deg
tp 2459204.991785602548
(2020-Dec-21.49178560)
7.5255e-05 TDB
period 1556.09112427514
4.26
1.1472e-05
3.141e-08
d
yr
n .2313489193428152 1.7056e-09 deg/d
Q 2.932569414524596 1.4413e-08 au
  Orbit Determination Parameters
   # obs. used (total)      662  
   data-arc span      8672 days (23.74 yr)  
   first obs. used      1997-03-10  
   last obs. used      2020-12-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52637  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:23:54  

Additional Information
 Earth MOID = 1.33239 au 
 Jupiter MOID = 2.52814 au 
 T_jup = 3.374 
[ 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 15.72   n/a E2021B10  
diameter diameter 5.653 km 0.385 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.026   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66637 (1999 RC213)          Discovered 1999-Sep-09 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
1939-Sep-23 08:50 00:02 Juno 0.049404475266785 0.0494028684113455 0.0494060856802207 8.20113742463603 8.20113739460947 2429529.867756121 1.50256603159406 936.519187042122 56.6052029484518 86.516443046244 130295.01038086 T 24 CATAB v2.0f-lin.ifort 2021-Apr-13 12:23:57 2021-Apr-13 12:23
2157-Feb-21 11:52 00:05 Thisb 0.0423472085349492 0.0423024507580267 0.0423919665348689 2.80417046828568 2.80417041086802 2508939.994372826 5.0359715973405 2233.79945961635 54.5892121697359 3.75516754229187 8099.14429805236 T 24 CATAB v2.0f-lin.ifort 2021-Apr-13 12:23:57 2021-Apr-13 12:23
2167-Jan-10 05:43 < 00:01 David 0.0487505999717904 0.0487335714644649 0.0487676546955836 8.27739137541468 8.27739133797695 2512549.738321785 0.633885358288665 1975.79533645805 34.0685162862921 -64.5491660326805 193256.4378629 T 24 CATAB v2.0f-lin.ifort 2021-Apr-13 12:23:57 2021-Apr-13 12:23

Alternate Designations
 1999 RC213 = 1997 EW22 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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