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
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1155987185249483 4.6836e-08  
a 2.604665142778228 1.197e-08 au
q 2.303569190086463 1.2195e-07 au
i 14.00748313981288 5.1484e-06 deg
node 258.5862152972055 1.8695e-05 deg
peri 136.8853589997716 2.7368e-05 deg
M 216.4972499976188 2.0659e-05 deg
tp 2459212.545905534040
(2020-Dec-29.04590553)
8.9681e-05 TDB
period 1535.416749773774
4.20
1.0584e-05
2.898e-08
d
yr
n .2344640307284924 1.6162e-09 deg/d
Q 2.905761095469993 1.3353e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1445  
   data-arc span      14962 days (40.96 yr)  
   first obs. used      1978-09-08  
   last obs. used      2019-08-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4458  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 01:29:44  

Additional Information
 Earth MOID = 1.33161 au 
 Jupiter MOID = 2.49068 au 
 T_jup = 3.361 
[ 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 13.0   n/a MPO395198  
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. 2019-January); 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 2020-Jan-17 13:22 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin