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 ]  
20361 Romanishin (1998 JD3)
Classification: Main-belt Asteroid          SPK-ID: 2020361
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 .1589515987566795 3.0828e-08  
a 2.65034145154504 1.1298e-08 au
q 2.229065440570857 8.1103e-08 au
i 14.31264576571352 3.419e-06 deg
node 73.77708220627335 1.6486e-05 deg
peri 211.5186518444569 2.2219e-05 deg
M 1.078741177152998 1.3192e-05 deg
tp 2458995.777565680942
(2020-May-26.27756568)
5.7758e-05 TDB
period 1575.981700585312
4.31
1.0077e-05
2.759e-08
d
yr
n .2284290482981482 1.4606e-09 deg/d
Q 3.071617462519222 1.3093e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1283  
   data-arc span      8973 days (24.57 yr)  
   first obs. used      1996-01-12  
   last obs. used      2020-08-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51758  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 01:34:44  

Additional Information
 Earth MOID = 1.2247 au 
 Jupiter MOID = 2.08296 au 
 T_jup = 3.329 
[ 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 14.1   n/a MPO431734  
diameter diameter 3.552 km 0.424 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.321   0.034 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20361 Romanishin           Discovered 1998 May 1 by the Lowell Observatory Near-Earth Object Search at the Anderson Mesa Station.
William Romanishin (b. 1952) is a professor of astronomy at the University of Oklahoma. An expert in imaging faint objects using CCD cameras, Romanishin has recently concentrated on observing Kuiper Belt Objects. With Stephen Tegler, he discovered the bimodal nature of centaur colors.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20080718/MPCPages.arcLast Updated: 2008-07-18

[ show close-approach data ]
Alternate Designations
 1998 JD3 = 1999 TK254 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Oct-25 01:05 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin