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21699 Wolpert (1999 RE64)
Classification: Main-belt Asteroid          SPK-ID: 2021699
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1743601473968625 3.8617e-08  
a 3.120813821781582 1.5329e-08 au
q 2.57666826381758 1.2149e-07 au
i 3.018724496970696 3.7125e-06 deg
node 81.78767618501091 7.3907e-05 deg
peri 319.5734934359986 7.4501e-05 deg
M 305.8162660532923 9.6143e-06 deg
tp 2459699.586538242800
(2022-Apr-30.08653824)
5.4835e-05 TDB
period 2013.725260697684
5.51
1.4836e-05
4.062e-08
d
yr
n .1787731459828203 1.3171e-09 deg/d
Q 3.664959379745584 1.8001e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1605  
   data-arc span      17838 days (48.84 yr)  
   first obs. used      1972-10-06  
   last obs. used      2021-08-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49365  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-24 22:45:03  

Additional Information
 Earth MOID = 1.58551 au 
 Jupiter MOID = 1.74883 au 
 T_jup = 3.190 
[ 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 13.82   n/a E2021B10  
diameter diameter 10.259 km 0.316 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 87.848 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 sidereal period (not synodic); Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.061   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

21699 Wolpert           Discovered 1999 Sept. 7 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Maya Nina Wolpert (b. 1988) was awarded first place and Best in Category in the 2006 Intel International Science and Engineering Fair for her behavioral and social sciences project. She attends the Hathaway Brown School, Shaker Heights, Ohio, U.S.A.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20060711/MPCPages.arcLast Updated: 2006-07-17

[ 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
1949-May-07 07:02 00:01 Jupiter 1.94726997094465 1.94726934881203 1.94727059307737 3.01506334493466 2.86716723986587 2433043.793083270 1.4908802797921 54.2124694799056 13.0559484205881 76.5098606317354 2462036.29627198 T 25 CATAB v2.0g-lin.ifort 2021-Aug-24 22:45:09 2021-Aug-24 22:45
1959-Jun-24 14:26 00:01 Jupiter 1.75526697613119 1.75526663517404 1.75526731708815 1.79132522153569 1.49790688883086 2436744.101184449 1.25108357250761 64.5553570696604 29.8432849671603 84.2403836089751 2571615.37693991 T 25 CATAB v2.0g-lin.ifort 2021-Aug-24 22:45:09 2021-Aug-24 22:45
1969-Aug-15 05:20 < 00:01 Jupiter 1.91433672377794 1.91433623920706 1.91433720834893 2.19205195503931 1.97994102481606 2440448.722095878 0.981563145491133 75.691408342506 4.53896928644178 89.6560380130552 2874232.05440295 T 25 CATAB v2.0g-lin.ifort 2021-Aug-24 22:45:09 2021-Aug-24 22:45
2031-Apr-24 22:19 < 00:01 Jupiter 1.77952119275526 1.77952088218805 1.77952150332238 2.00596533637927 1.75269226387747 2462981.429518017 0.443168516258582 45.6883035317842 12.4762293571638 85.8875786514812 3088657.46495157 T 25 CATAB v2.0g-lin.ifort 2021-Aug-24 22:45:09 2021-Aug-24 22:45
2041-Jun-13 03:20 < 00:01 Jupiter 1.82414142396596 1.82414097951563 1.8241418684164 1.8870140637263 1.62238753958321 2466683.638626288 0.679199430048094 79.8031389443135 19.3157084999153 -89.7742696225458 2570474.02586028 T 25 CATAB v2.0g-lin.ifort 2021-Aug-24 22:45:09 2021-Aug-24 22:45
2103-Feb-26 09:08 00:02 Jupiter 1.84761787583897 1.84761726210197 1.84761848957596 2.42413625240085 2.22700605093192 2489220.880358155 2.06575412993354 61.1988399063286 5.14604283489334 88.042202974825 2175089.08413804 T 25 CATAB v2.0g-lin.ifort 2021-Aug-24 22:45:09 2021-Aug-24 22:45
2113-Apr-13 05:30 00:02 Jupiter 1.76375860859715 1.76375811011288 1.76375910708183 1.75379889237175 1.45441951903574 2492919.729436224 2.29782908552906 97.2152456383569 33.443878701261 87.3686357317145 2458078.34872539 T 25 CATAB v2.0g-lin.ifort 2021-Aug-24 22:45:09 2021-Aug-24 22:45
2174-Dec-30 01:12 00:04 Jupiter 1.93810896298402 1.93810771994325 1.93811020602601 3.0256618319048 2.87759594569631 2515460.550336453 3.66636513410939 111.08574549858 12.7683287814232 74.232584200907 2153714.65545406 T 25 CATAB v2.0g-lin.ifort 2021-Aug-24 22:45:09 2021-Aug-24 22:45
2185-Feb-11 08:30 00:04 Jupiter 1.7419750318368 1.74197469739405 1.74197536627935 1.78273759653665 1.48514918082106 2519156.854040044 3.94807699788993 65.7175692793887 45.120045470141 -73.592792639895 2237093.459765 T 25 CATAB v2.0g-lin.ifort 2021-Aug-24 22:45:09 2021-Aug-24 22:45
2195-Apr-05 00:17 00:04 Jupiter 1.91902679122562 1.91902525213087 1.91902833032942 2.22008648558635 2.01147245405223 2522861.511805539 4.1500376396051 247.186143585224 5.33974271836107 86.1712021795413 2773356.59533377 T 25 CATAB v2.0g-lin.ifort 2021-Aug-24 22:45:09 2021-Aug-24 22:45

Alternate Designations
 1999 RE64 = 1972 TU7 = 1989 YM5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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