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 ]  
3927 Feliciaplatt (1981 JA2)
Classification: Main-belt Asteroid          SPK-ID: 2003927
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1360581182252487 1.4724e-08  
a 2.194176659326037 5.2696e-09 au
q 1.895641112004374 3.4543e-08 au
i 1.952787661709705 7.2111e-07 deg
node 255.4398260564779 2.6124e-05 deg
peri 26.23129413151868 2.6559e-05 deg
M 22.45474368281904 5.677e-06 deg
tp 2459126.452327095612
(2020-Oct-03.95232710)
1.8672e-05 TDB
period 1187.15059152406
3.25
4.2767e-06
1.171e-08
d
yr
n .3032471217807619 1.0924e-09 deg/d
Q 2.4927122066477 5.9866e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2444  
   data-arc span      15431 days (42.25 yr)  
   first obs. used      1978-07-05  
   last obs. used      2020-10-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46161  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 15:44:14  

Additional Information
 Earth MOID = .877518 au 
 Jupiter MOID = 2.62243 au 
 T_jup = 3.657 
[ 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 14.03   n/a E2021B10  
diameter diameter 3.995 km 0.090 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.278   0.026 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

3927 Feliciaplatt (1981 JA2)          Discovered 1981-May-05 by Shoemaker, C. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1981 JA2 = 1985 TD1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-May-06 00:41 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin