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 ]  
(2019 WJ4)
Classification: Apollo [NEO]          SPK-ID: 3893641
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6818644481167276 0.00056529  
a 2.237962226092696 0.0035364 au
q .7119753478919166 0.00014003 au
i 10.68399135238701 0.0075858 deg
node 67.93860072566494 8.8627e-05 deg
peri 71.65617082107808 0.00075555 deg
M 41.09381231498492 0.093549 deg
tp 2458860.910906456022
(2020-Jan-12.41090646)
0.013096 TDB
period 1222.862295925449
3.35
2.8985
0.007936
d
yr
n .2943912828120651 0.00069779 deg/d
Q 3.763949104293476 0.0059478 au
  Orbit Determination Parameters
   # obs. used (total)      24  
   data-arc span      3 days  
   first obs. used      2019-11-26  
   last obs. used      2019-11-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .63088  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 07:04:36  

Additional Information
 Earth MOID = 6.4916E-5 au 
 Jupiter MOID = 1.46578 au 
 T_jup = 3.268 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 28.4   .38217 E2019-XC0 autocmod 2.8

[ 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
1909-May-09 04:42 7_13:55 Earth 0.266910464701203 0.151798371763487 0.404391423455558 24.9098864757166 24.9094857211308 2418435.695691794 10915.2359531332 7404120.3255824 102.907116067584 -27.5971754590338 177228.99923525 T 3 CATAB v2.0f-lin.ifort 2019-Dec-14 07:04:38 2019-Dec-14 07:04
1914-Apr-04 12:51 2_08:17 Jupiter 1.99321717080192 1.99251214009936 1.99392968434091 6.03074430191619 5.95986341617109 2420227.035164234 3376.55450699957 200398.19294079 823.841223240862 69.0235405635994 90121.9079321816 T 3 CATAB v2.0f-lin.ifort 2019-Dec-14 07:04:38 2019-Dec-14 07:04
1918-Nov-22 02:42 6_07:01 Earth 0.125743826835053 0.0258760823115626 0.232847175817326 22.1285908026011 22.1276332088081 2421919.612746825 9061.15290253795 5378170.26270795 14.6323102649183 9.21210894084255 188069.757728844 T 3 CATAB v2.0f-lin.ifort 2019-Dec-14 07:04:38 2019-Dec-14 07:04
1922-May-21 07:51 8_14:34 Earth 0.465776359607059 0.303506688115084 0.633473093133181 31.3608609049237 31.3606784951093 2423195.827301413 12393.6112214314 8601643.1864591 130.967179896871 -15.8421397413812 140595.548981041 T 3 CATAB v2.0f-lin.ifort 2019-Dec-14 07:04:38 2019-Dec-14 07:04
1950-Jan-30 13:05 6_15:39 Jupiter 1.64884841579942 1.63723961106883 1.6605243184128 4.96384683411559 4.85925553693326 2433312.044935151 9578.86721688646 786675.146666903 370.190790439763 46.77347473024 157901.202199575 T 3 CATAB v2.0f-lin.ifort 2019-Dec-14 07:04:38 2019-Dec-14 07:04
1958-Mar-14 10:13 4_07:21 Earth 0.288218940300399 0.281026259477654 0.29542908558329 13.8269109809721 13.8262423674226 2436276.925879871 6201.164388635 376130.346056297 43.5006313856546 17.3174857525211 226635.108159289 T 3 CATAB v2.0f-lin.ifort 2019-Dec-14 07:04:38 2019-Dec-14 07:04
2019-Nov-30 20:05 < 00:01 Earth 0.0021918023968107 0.00218660710255212 0.00219699752263293 18.5213587757398 18.4556066667236 2458818.336576041 0.145202950587255 257.279755019339 1.89054886433165 0.655096241808662 990.499296124576 T 3 CATAB v2.0f-lin.ifort 2019-Dec-14 07:04:38 2019-Dec-14 07:04
2019-Nov-30 22:46 < 00:01 Moon 0.000484738185642281 0.000483576340115378 0.000485954930399567 19.3439744083034 19.3404789424036 2458818.448275628 0.324994179034465 264.168847358441 2.07180534617725 -77.0292967759699 33146.3572519695 T 3 CATAB v2.0f-lin.ifort 2019-Dec-14 07:04:38 2019-Dec-14 07:04
2021-Aug-20 08:36 23:59 Jupiter 1.60772146285695 1.60421625562388 1.61144279780109 5.66092660576543 5.56708154455671 2459446.858610098 1439.10869014706 957139.697799252 749.35998640286 75.0356005159309 139464.64128154 T 3 CATAB v2.0f-lin.ifort 2019-Dec-14 07:04:38 2019-Dec-14 07:04
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jul-14 17:29 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin