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

Significant website upgrade scheduled for September 27. More details available here.

JPL Small-Body Database Browser
Search: [ help ]  
35646 (1998 KO66)
Classification: Main-belt Asteroid          SPK-ID: 2035646
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1028851675073436 4.4417e-08  
a 3.096215474353703 1.9427e-08 au
q 2.777660826635993 1.3228e-07 au
i 4.576243642119598 4.1081e-06 deg
node 244.3079527292967 6.0812e-05 deg
peri 287.8601726966414 6.402e-05 deg
M 142.4289685525666 1.9862e-05 deg
tp 2458609.198605703800
(2019-May-05.69860570)
0.00011123 TDB
period 1989.963873409828
5.45
1.8729e-05
5.128e-08
d
yr
n .1809078068252241 1.7026e-09 deg/d
Q 3.414770122071414 2.1426e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1044  
   data-arc span      11190 days (30.64 yr)  
   first obs. used      1990-12-19  
   last obs. used      2021-08-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53469  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 00:19:31  

Additional Information
 Earth MOID = 1.78811 au 
 Jupiter MOID = 1.59436 au 
 T_jup = 3.210 
[ 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 14.31   n/a MPCxxxxx  
diameter diameter 7.249 km 0.260 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 9.95211 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.]
geometric albedo albedo 0.077   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

35646 (1998 KO66)          Discovered 1998-May-18 by LONEOS at Anderson Mesa
Reference: 20020227/Numbers.arcLast Updated: 2004-04-19

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1902-Feb-03 21:07 00:03 Jupiter 1.89125541090246 1.89125401671155 1.89125680509262 2.87942553007802 2.71944226650566 2415784.379699565 2.94503382665571 54.8591305777398 40.6092335855158 68.564338999479 1000330.95080156 T 25 CATAB v2.0g-lin.ifort 2021-Aug-25 00:19:47 2021-Aug-25 00:19
1952-Mar-26 05:20 00:02 Jupiter 1.64993880122886 1.64993814154971 1.64993946090849 2.17810171380949 1.92805472981325 2434097.722060308 1.70687280420684 104.235202151853 22.4578467955753 -83.0566788992407 1944836.94822602 T 25 CATAB v2.0g-lin.ifort 2021-Aug-25 00:19:47 2021-Aug-25 00:19
1961-Nov-17 09:43 00:01 Jupiter 1.78444216770141 1.78444153343271 1.78444280197012 2.36153219818548 2.15116080591792 2437620.904708635 1.43556452119352 70.2581221938555 15.0586230853018 -89.3269832022478 2144433.01742571 T 25 CATAB v2.0g-lin.ifort 2021-Aug-25 00:19:47 2021-Aug-25 00:19
2012-Jan-13 04:17 < 00:01 Jupiter 1.73067515914074 1.73067475958316 1.73067555869823 2.65032790910724 2.45874017644455 2455939.678554177 0.23243333888781 45.903483189186 13.9413173547516 -86.6962264164982 2715619.60005954 T 25 CATAB v2.0g-lin.ifort 2021-Aug-25 00:19:47 2021-Aug-25 00:19
2021-Sep-09 04:05 < 00:01 Jupiter 1.69096887189528 1.69096834577224 1.69096939801821 1.90421397916463 1.61994188601047 2459466.670393306 0.330712351256389 61.2315357963857 29.3624895901358 79.6349201721663 2257727.02785605 T 25 CATAB v2.0g-lin.ifort 2021-Aug-25 00:19:47 2021-Aug-25 00:19
2071-Oct-28 00:28 00:02 Jupiter 1.83915370115461 1.83915277164824 1.8391546306615 3.13827429184389 2.98791988393539 2477777.519755681 1.53896285254381 85.8796332213641 21.4281607223971 71.5074622746549 2429802.63637147 T 25 CATAB v2.0g-lin.ifort 2021-Aug-25 00:19:47 2021-Aug-25 00:19
2081-Jul-04 18:39 00:02 Jupiter 1.62243902584656 1.62243830234614 1.62243974934798 1.64968844067873 1.29512052220208 2481315.276830615 1.93922845671307 126.3597210708 57.328738186137 66.2916504539526 2181359.61004188 T 25 CATAB v2.0g-lin.ifort 2021-Aug-25 00:19:47 2021-Aug-25 00:19
2131-Aug-05 14:08 00:03 Jupiter 1.96221353127516 1.96221166170737 1.96221540084407 3.60841568469041 3.48673630733737 2499608.088987764 2.99929413361657 126.095925174611 28.7741226262249 53.3728619367128 2086477.70437563 T 25 CATAB v2.0g-lin.ifort 2021-Aug-25 00:19:47 2021-Aug-25 00:19
2141-Apr-27 07:23 00:04 Jupiter 1.58787415158154 1.58787360235326 1.58787470081109 1.68984388934073 1.33742620002984 2503160.807310119 3.60340676573453 169.687741057146 77.6194098672191 -60.6154832696276 1694777.63129068 T 25 CATAB v2.0g-lin.ifort 2021-Aug-25 00:19:47 2021-Aug-25 00:19

Alternate Designations
 1998 KO66 = 1995 UN61 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Sep-21 12:37 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin