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 ]  
20378 (1998 KZ46)
Classification: Main-belt Asteroid          SPK-ID: 2020378
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1148929158282922 2.804e-08  
a 2.602396815180305 9.2109e-09 au
q 2.303399856941978 7.4842e-08 au
i 14.0042954389577 8.4423e-07 deg
node 258.572689900818 3.1239e-06 deg
peri 137.4944710567371 1.1133e-05 deg
M 356.5938580830021 8.8157e-06 deg
tp 2459215.008380707524
(2020-Dec-31.50838071)
3.7543e-05 TDB
period 1533.411461408522
4.20
8.141e-06
2.229e-08
d
yr
n .2347706464051863 1.2464e-09 deg/d
Q 2.901393773418631 1.0269e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2331  
   data-arc span      15521 days (42.49 yr)  
   first obs. used      1978-09-08  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .38429  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:18:59  

Additional Information
 Earth MOID = 1.33068 au 
 Jupiter MOID = 2.49276 au 
 T_jup = 3.363 
[ 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 13.01   n/a E2021B10  
diameter diameter 8.037 km 0.205 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 5.14 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Kim, M.-J.; Choi, Y.-J.; Moon, H.-K.; Byun, Y.-I.; et al. (2014) Astron. J. 147, A56.]
geometric albedo albedo 0.227   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20378 (1998 KZ46)          Discovered 1998-May-22 by LINEAR at Socorro
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 KZ46 = 1978 RG2 = 1991 XX1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Apr-21 13:52 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin