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 ]  
59823 (1999 RU26)
Classification: Main-belt Asteroid          SPK-ID: 2059823
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1104996618942338 4.8165e-08  
a 3.198801515347619 2.5688e-08 au
q 2.845335029434944 1.5536e-07 au
i 5.470523588447143 5.527e-06 deg
node 158.7032427200396 4.9153e-05 deg
peri 204.3461472021116 5.3721e-05 deg
M 219.7381637028918 2.3281e-05 deg
tp 2459814.672418984239
(2022-Aug-23.17241898)
0.00013866 TDB
period 2089.677980640905
5.72
2.5172e-05
6.892e-08
d
yr
n .1722753473669603 2.0752e-09 deg/d
Q 3.552268001260294 2.8526e-08 au
  Orbit Determination Parameters
   # obs. used (total)      710  
   data-arc span      10524 days (28.81 yr)  
   first obs. used      1991-04-07  
   last obs. used      2020-01-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5817  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 12:55:02  

Additional Information
 Earth MOID = 1.84366 au 
 Jupiter MOID = 1.89951 au 
 T_jup = 3.178 
[ 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 14.4   n/a MPO263810  
diameter diameter 3.795 km 0.839 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.177   0.084 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

59823 (1999 RU26)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20030614/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
1933-Mar-22 19:37 00:03 Jupiter 1.98735063319442 1.98735009332157 1.98735117306852 3.22821293005568 3.09337113175747 2427154.317690400 3.16589587201825 172.931491931641 18.1447832136799 -85.9216341564796 3039990.10238662 T 23 CATAB v2.0f-lin.ifort 2020-Feb-23 12:55:17 2020-Feb-23 12:55
1944-Jun-23 08:29 00:03 Jupiter 1.97887567511803 1.97887519066751 1.97887615956866 3.23546750330146 3.10035248927966 2431264.853313400 2.64899934699645 135.108529326558 18.2094268283882 -87.8564898233922 3045991.05460442 T 23 CATAB v2.0f-lin.ifort 2020-Feb-23 12:55:17 2020-Feb-23 12:55
1955-Sep-18 06:26 00:02 Jupiter 1.98535373546559 1.98535327323816 1.98535419769303 3.29966853082646 3.16773440808242 2435368.767961105 2.18280526727564 94.9659491973238 17.8239835249875 89.8030309363957 3204761.19379642 T 23 CATAB v2.0f-lin.ifort 2020-Feb-23 12:55:17 2020-Feb-23 12:55

Alternate Designations
 1999 RU26 = 2000 YC84 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Apr-07 20:50 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin