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 ]  
66368 (1999 JP98)
Classification: Main-belt Asteroid          SPK-ID: 2066368
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2126923548751753 3.7948e-08  
a 2.339187202337192 9.8366e-09 au
q 1.841659967778221 8.9242e-08 au
i 11.28453874711211 4.4753e-06 deg
node 122.1347285758047 2.0812e-05 deg
peri 162.7104165151541 2.2867e-05 deg
M 284.5728734164932 1.1724e-05 deg
tp 2459274.292128763608
(2021-Feb-28.79212876)
4.3507e-05 TDB
period 1306.760191186332
3.58
8.2426e-06
2.257e-08
d
yr
n .2754904858810987 1.7377e-09 deg/d
Q 2.836714436896163 1.1929e-08 au
  Orbit Determination Parameters
   # obs. used (total)      957  
   data-arc span      7573 days (20.73 yr)  
   first obs. used      1999-05-12  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54293  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 14:55:56  

Additional Information
 Earth MOID = .828381 au 
 Jupiter MOID = 2.3564 au 
 T_jup = 3.509 
[ 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 15.4   n/a MPO468589  
diameter diameter 4.154 km 0.026 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 97.219 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.079   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66368 (1999 JP98)          Discovered 1999-May-12 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 JP98 = 2002 CB21 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Apr-08 22:43 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin