Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
20517 Judycrystal (1999 RB35)
Classification: Main-belt Asteroid          SPK-ID: 2020517
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03953820028598235 4.9792e-08  
a 2.650981919612063 1.7056e-08 au
q 2.546166865519923 1.3218e-07 au
i 21.31352008382461 7.8078e-06 deg
node 291.035343953227 1.9155e-05 deg
peri 135.7498068235763 0.00012542 deg
M 223.9224967847086 0.00012333 deg
tp 2459596.426100063580
(2022-Jan-16.92610006)
0.0005415 TDB
period 1576.553000707768
4.32
1.5215e-05
4.166e-08
d
yr
n .2283462717957365 2.2037e-09 deg/d
Q 2.755796973704202 1.773e-08 au
  Orbit Determination Parameters
   # obs. used (total)      741  
   data-arc span      16040 days (43.92 yr)  
   first obs. used      1976-05-29  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60028  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 05:13:02  

Additional Information
 Earth MOID = 1.58246 au 
 Jupiter MOID = 2.42125 au 
 T_jup = 3.292 
[ 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 14.3   n/a MPO384930  
diameter diameter 3.708 km 0.159 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.294   0.047 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20517 Judycrystal           Discovered 1999 Sept. 11 by L. Robinson at Sunflower Observatory.
Judy Crystal (Andrews) Robinson (b. 1949) is the wife of the discoverer.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010309/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
2124-Jul-01 04:33 00:08 Inter 0.043960166902272 0.043949247272787 0.0439710940780339 2.21836344971071 2.21836329959481 2497016.689928854 7.99213576399726 1060.62397054589 60.9524127431931 59.3760493257639 92636.2510532846 T 19 CATAB v2.0f-lin.ifort 2020-May-20 05:13:18 2020-May-20 05:13
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jun-06 14:13 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin