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13423 Bobwoolley (1999 VR22)
Classification: Main-belt Asteroid          SPK-ID: 2013423
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07548505106844618 1.0337e-08  
a 2.748125692311669 1.1365e-08 au
q 2.540683284085014 3.3687e-08 au
i 4.028403650476907 7.218e-07 deg
node 285.4981012784795 1.018e-05 deg
peri 93.33991114733418 1.9469e-05 deg
M 240.7443895996177 1.8366e-05 deg
tp 2459751.725924232962
(2022-Jun-21.22592423)
8.5993e-05 TDB
period 1663.999974991787
4.56
1.0323e-05
2.826e-08
d
yr
n .2163461570976147 1.3421e-09 deg/d
Q 2.955568100538325 1.2223e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2277  
   data-arc span      17885 days (48.97 yr)  
   first obs. used      1971-07-27  
   last obs. used      2020-07-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45175  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 23:56:50  

Additional Information
 Earth MOID = 1.54512 au 
 Jupiter MOID = 2.42254 au 
 T_jup = 3.339 
[ 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 13.17   n/a E2021B10  
diameter diameter 12.349 km 0.063 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.076   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

13423 Bobwoolley           Discovered 1999 Nov. 13 by C. W. Juels at Fountain Hills.
Robert Woolley (b. 1953) taught astronomy and was planetarium director at Montgomery College (1976-1981) and president of the Von Braun Astronomical Society (1993-1994). Since 1994 he has been conducting week-long astronomical/geological educational experiences at a dark site near Flagstaff, Arizona.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010109/MPCPages.arcLast Updated: 2009-05-11

[ 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
1960-Sep-16 20:10 00:04 Hygie 0.0109392104526555 0.0109351006557473 0.0109433218967597 2.1661797894753 2.16617815897038 2437194.340311897 3.70292187452106 298.650523204336 53.8371851484737 47.9855456415876 22739.0922288124 T 32 CATAB v2.0f-lin.ifort 2021-Apr-12 23:57:46 2021-Apr-12 23:57
2015-Nov-10 15:39 00:02 Iris 0.0413313928588471 0.0413299772895631 0.0413328084308938 2.10676167409107 2.10676160807075 2457337.151882378 1.68499193335934 74.0909481375659 47.4886502955583 23.7078897391186 92442.4231321631 T 32 CATAB v2.0f-lin.ifort 2021-Apr-12 23:57:46 2021-Apr-12 23:57
2161-Apr-28 12:16 00:10 Hygie 0.00513949033206191 0.00513463388149736 0.00514441617841421 2.4493234496077 2.44932038032774 2510467.010782333 9.50243170240669 991.435958122336 53.9039239147472 -76.1740041962268 13782.5790034816 T 32 CATAB v2.0f-lin.ifort 2021-Apr-12 23:57:46 2021-Apr-12 23:57
2189-Feb-12 14:26 00:17 Iris 0.0496229874226632 0.0496033305929263 0.0496426445240881 2.16312043543708 2.16312038188092 2520619.101514667 17.165963671492 996.191362736286 50.399542547007 10.7082923543757 28276.9711960106 T 32 CATAB v2.0f-lin.ifort 2021-Apr-12 23:57:46 2021-Apr-12 23:57

Alternate Designations
 1999 VR22 = 1971 OY = 1971 QC2 = 1985 QN4 = 1990 UC3 = 1990 WC13 = 1996 BD13 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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