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
JPL Small-Body Database Browser
Search: [ help ]  
11835 (1985 RA4)
Classification: Main-belt Asteroid          SPK-ID: 2011835
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 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1017182801519902 3.7918e-08  
a 2.747028332171078 1.2432e-08 au
q 2.467605334693846 1.0635e-07 au
i 7.254758268096341 5.2858e-06 deg
node 349.6854943228703 2.772e-05 deg
peri 306.9971311039091 3.7285e-05 deg
M 265.9644814337807 2.5828e-05 deg
tp 2459434.892739645389
(2021-Aug-08.39273965)
0.0001195 TDB
period 1663.003391236868
4.55
1.1289e-05
3.091e-08
d
yr
n .2164758063014219 1.4696e-09 deg/d
Q 3.02645132964831 1.3697e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2055  
   data-arc span      12702 days (34.78 yr)  
   first obs. used      1985-09-10  
   last obs. used      2020-06-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47841  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:56:57  

Additional Information
 Earth MOID = 1.46037 au 
 Jupiter MOID = 2.19945 au 
 T_jup = 3.328 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456750.5 (2014-Apr-03.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1017530808392526 3.7544e-08  
q 2.46851187246363 1.0501e-07 au
tp 2456098.290543328839
(2012-Jun-19.79054333)
0.00011941 TDB
node 349.7978489793037 2.7802e-05 deg
peri 305.2220384103033 3.7325e-05 deg
i 7.244636851774379 5.2764e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2055  
   data-arc span      12702 days (34.78 yr)  
   first obs. used      1985-09-10  
   last obs. used      2020-06-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47841  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:56:57  

Additional Information
 Jupiter MOID = 2.19945 au 
 T_jup = 3.328 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.409586266117726E-15 -3.920773303730273E-15 1.539426116118274E-12 2.788218581920329E-15 3.379742012226975E-13 1.363171982478653E-15
q -3.920773303730273E-15 1.102706680081666E-14 -4.304490174769594E-12 -7.417132019021453E-15 -9.343217631728747E-13 -3.675606640218239E-15
tp 1.539426116118274E-12 -4.304490174769594E-12 1.425906412544886E-8 5.51171211808174E-12 2.980441367240369E-9 6.17785752657036E-12
node 2.788218581920329E-15 -7.417132019021453E-15 5.51171211808174E-12 7.729509682127963E-10 -7.653299827689171E-10 1.672865975326935E-12
peri 3.379742012226975E-13 -9.343217631728747E-13 2.980441367240369E-9 -7.653299827689171E-10 1.393132893901021E-9 -4.424505086176835E-13
i 1.363171982478653E-15 -3.675606640218239E-15 6.17785752657036E-12 1.672865975326935E-12 -4.424505086176835E-13 2.784041730368134E-11

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 13.6   n/a MPO340783  
diameter diameter 7.237 km 0.274 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.161   0.040 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

11835 (1985 RA4)          Discovered 1985-Sep-10 by Debehogne, H. at La Silla
Reference: 19991026/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1985 RA4 = 1994 PL28 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Dec-02 07:57 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin