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JPL Small-Body Database Browser
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(2019 NJ2)
Classification: Apollo [NEO]          SPK-ID: 3843135
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | 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 2458668.5 (2019-Jul-04.0) TDB
Reference: JPL 2 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4743395416996778 0.0026394  
a 1.509548136583931 0.0064202 au
q .7935097653031065 0.00061159 au
i .8020406290626211 0.0027147 deg
node 334.2280507685081 0.10249 deg
peri 36.31197480735874 0.13062 deg
M 324.4777230149986 0.28012 deg
tp 2458735.344729789945
(2019-Sep-08.84472979)
0.10068 TDB
period 677.4369428666079
1.85
4.3218
0.01183
d
yr
n .5314147741583773 0.0033902 deg/d
Q 2.225586507864755 0.0094655 au
  Orbit Determination Parameters
   # obs. used (total)      18  
   data-arc span      6 days  
   first obs. used      2019-06-29  
   last obs. used      2019-07-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      8  
   norm. resid. RMS      .50672  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 21:26:12  

Additional Information
 Earth MOID = .00819538 au 
 Jupiter MOID = 3.23612 au 
 T_jup = 4.395 
[ hide covariance matrix ]
Orbit Covariance (6×6)
  e q tp node peri i
e 6.966336005122474E-6 -1.609399128152909E-6 -.0002657017343440166 .0002659781494713662 -.0003387017590728178 7.155913736892306E-6
q -1.609399128152909E-6 3.740389102968502E-7 6.132240698107652E-5 -6.058138381492065E-5 7.711129062438811E-5 -1.659449643676843E-6
tp -.0002657017343440166 6.132240698107652E-5 .01013577933908169 -.01016845568960811 .01294967152686002 -.0002727602417235331
node .0002659781494713662 -6.058138381492065E-5 -.01016845568960811 .01050425455260056 -.01338627162071982 .0002706449037342083
peri -.0003387017590728178 7.711129062438811E-5 .01294967152686002 -.01338627162071982 .01706047203135464 -.0003445866756559474
i 7.155913736892306E-6 -1.659449643676843E-6 -.0002727602417235331 .0002706449037342083 -.0003445866756559474 7.369823942784632E-6

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 24.9   .37565 MPO473711 autocmod 2.6q

[ 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
1952-Dec-27 05:25 8_18:53 Venus 0.141161419288628 0.0934142739680228 0.195701217651389 9.95211561197045 9.95056974809785 2434373.725451047 12653.1747694648 2986171.15915179 310.869967128742 -29.0425617746188 3230.30167778502 T 2 CATAB v2.0g-lin.ifort 2021-Apr-15 21:26:12 2021-Apr-15 21:26
2019-Jul-19 19:53 00:18 Earth 0.0342084453392551 0.0336472365020911 0.0347696403470662 13.4640908754247 13.4583046504594 2458684.328664028 17.849185136532 27963.8351499516 67.3861368271145 -0.416433765106389 301.007012191367 T 2 CATAB v2.0g-lin.ifort 2021-Apr-15 21:26:12 2021-Apr-15 21:26
2119-Jul-07 19:21 3_15:17 Earth 0.255948768727974 0.230709424289834 0.292961165617228 19.9607758820947 19.960254342161 2495196.306109104 5236.5462997451 3160438.91098815 2586.3121100281 59.8410439311181 9435.42959662633 T 2 CATAB v2.0g-lin.ifort 2021-Apr-15 21:26:12 2021-Apr-15 21:26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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