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

Significant website upgrade scheduled for September 27. More details available here.

JPL Small-Body Database Browser
Search: [ help ]  
85193 (1991 RD19)
Classification: Main-belt Asteroid          SPK-ID: 2085193
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2389430923009987 4.099e-08  
a 2.210339504239862 7.7941e-09 au
q 1.682194148061733 9.3447e-08 au
i 2.849402453484427 2.9648e-06 deg
node 270.4473187575642 7.9944e-05 deg
peri 95.84893639352867 8.0154e-05 deg
M 14.97655620624195 7.9891e-06 deg
tp 2459346.565999033591
(2021-May-12.06599903)
2.6447e-05 TDB
period 1200.291983040472
3.29
6.3487e-06
1.738e-08
d
yr
n .2999270219968314 1.5864e-09 deg/d
Q 2.738484860417991 9.6564e-09 au
  Orbit Determination Parameters
   # obs. used (total)      912  
   data-arc span      10899 days (29.84 yr)  
   first obs. used      1991-09-12  
   last obs. used      2021-07-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54028  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 22:03:31  

Additional Information
 Earth MOID = .682936 au 
 Jupiter MOID = 2.73761 au 
 T_jup = 3.618 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.98   n/a E2021B10  
diameter diameter 3.653 km 0.147 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.041   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85193 (1991 RD19)          Discovered 1991-Sep-14 by Holt, H. E. at Palomar
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

Alternate Designations
 1991 RD19 = 2001 SV109 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Sep-19 00:31 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin