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 ]  
146308 (2001 KJ28)
Classification: Main-belt Asteroid          SPK-ID: 2146308
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .300925294505494 5.1025e-08  
a 2.560854814506368 1.4111e-08 au
q 1.790228825265227 1.3217e-07 au
i 6.390378005856288 3.7971e-06 deg
node 92.80759528590775 4.007e-05 deg
peri 245.3698423501152 4.0786e-05 deg
M 213.392315041719 8.4401e-06 deg
tp 2459810.079141414634
(2022-Aug-18.57914141)
3.6425e-05 TDB
period 1496.841662643505
4.10
1.2372e-05
3.387e-08
d
yr
n .2405064002322198 1.9878e-09 deg/d
Q 3.331480803747509 1.8357e-08 au
  Orbit Determination Parameters
   # obs. used (total)      745  
   data-arc span      7233 days (19.80 yr)  
   first obs. used      2001-05-18  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5638  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 19:00:36  

Additional Information
 Earth MOID = .790591 au 
 Jupiter MOID = 2.09543 au 
 T_jup = 3.362 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457386.5 (2015-Dec-30.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3023305226085474 5.1398e-08  
q 1.786417737780207 1.3327e-07 au
tp 2456813.102366032801
(2014-Jun-04.60236603)
3.6071e-05 TDB
node 93.07355447589188 4.0058e-05 deg
peri 244.7486832370415 4.0755e-05 deg
i 6.392465069423366 3.7949e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      745  
   data-arc span      7233 days (19.80 yr)  
   first obs. used      2001-05-18  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5638  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 19:00:36  

Additional Information
 Jupiter MOID = 2.09543 au 
 T_jup = 3.362 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.641732725392037E-15 -6.831813455525192E-15 1.185212292042809E-12 -3.801579826064353E-14 1.974006804404437E-13 -7.538575004741831E-15
q -6.831813455525192E-15 1.776050650121994E-14 -3.153269770521309E-12 1.008021686110126E-13 -5.254149545032465E-13 1.977210451229619E-14
tp 1.185212292042809E-12 -3.153269770521309E-12 1.30110804824164E-9 -2.771206550883735E-11 2.916575323170328E-10 -5.395434213476753E-12
node -3.801579826064353E-14 1.008021686110126E-13 -2.771206550883735E-11 1.604625675618648E-9 -1.599167468572686E-9 -3.168847382926621E-11
peri 1.974006804404437E-13 -5.254149545032465E-13 2.916575323170328E-10 -1.599167468572686E-9 1.6609938719509E-9 3.049429423846794E-11
i -7.538575004741831E-15 1.977210451229619E-14 -5.395434213476753E-12 -3.168847382926621E-11 3.049429423846794E-11 1.44014546283912E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.75   n/a E2021B55  
rotation period rot_per 3.22993 h n/a LCDB (Rev. 2020-October); 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:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]

146308 (2001 KJ28)          Discovered 2001-May-18 by LINEAR at Socorro
Reference: 20070106/Numbers.arcLast Updated: 2007-01-09
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Apr-21 18:58 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin