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 ]  
(2021 JJ3)
Classification: Amor [NEO]          SPK-ID: 54144288
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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3778294017207931 0.00031682  
a 1.665190866205447 0.00087542 au
q 1.036032797476114 1.7104e-05 au
i 7.186997350064808 0.0044615 deg
node 225.4462123814694 0.0016628 deg
peri 16.08773093867729 0.0022056 deg
M 17.63933351419542 0.014338 deg
tp 2459358.043112846314
(2021-May-23.54311285)
0.00093396 TDB
period 784.8640859466364
2.15
0.61893
0.001695
d
yr
n .4586781411533165 0.0003617 deg/d
Q 2.29434893493478 0.0012062 au
  Orbit Determination Parameters
   # obs. used (total)      45  
   data-arc span      34 days  
   first obs. used      2021-05-08  
   last obs. used      2021-06-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      7  
   norm. resid. RMS      .528  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jun-13 08:26:03  

Additional Information
 Earth MOID = .0333228 au 
 Jupiter MOID = 2.72452 au 
 T_jup = 4.164 
[ 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 25.39   .35654 E2021N14 autocmod 2.9c

[ 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
1933-Apr-05 04:23 4_00:49 Earth 0.373833135037765 0.304259703941429 0.443532309032145 16.2908490455123 16.2904115267553 2427167.682304380 5808.98032874435 3489272.68887806 22.483824983356 5.54565486992852 199717.68877092 T 9 CATAB v2.0g-lin.ifort 2021-Jun-13 08:26:04 2021-Jun-13 08:26
1978-Jul-05 08:04 4_12:45 Earth 0.28989505694142 0.23964186712411 0.340957112062953 13.0346112460556 13.0339060900464 2443694.835810640 6525.18315716871 2639061.68104001 38.065816026716 -16.5731078824433 260789.29159502 T 9 CATAB v2.0g-lin.ifort 2021-Jun-13 08:26:04 2021-Jun-13 08:26
1991-Apr-10 00:24 4_20:21 Earth 0.312214661275286 0.232187849890374 0.392474626219244 14.5591685479194 14.5585823676007 2448356.516559825 6980.5120323726 4019014.42086073 22.0512721827413 5.90082147470292 178202.014429049 T 9 CATAB v2.0g-lin.ifort 2021-Jun-13 08:26:04 2021-Jun-13 08:26
2021-May-20 07:37 < 00:01 Earth 0.0440378194740369 0.0439441448792397 0.0441314928351098 6.26368610491465 6.25401910252385 2459354.817415838 0.141246613951012 4656.63679511491 8.58656967722271 0.206223616767326 801.309107221917 T 9 CATAB v2.0g-lin.ifort 2021-Jun-13 08:26:04 2021-Jun-13 08:26
2107-Apr-08 05:37 2_09:46 Earth 0.37414577742121 0.323053157547223 0.425321819910822 16.4304963023359 16.4300628647637 2490722.734145355 3466.429572362 2565037.43177446 22.0563364946962 6.19508697889199 228444.227615958 T 9 CATAB v2.0g-lin.ifort 2021-Jun-13 08:26:04 2021-Jun-13 08:26
2109-Jul-21 15:44 5_00:20 Earth 0.485520705114586 0.390079096139348 0.582014793670586 18.9277742178583 18.9274842776936 2491558.155685583 7220.2830065317 4916569.01564864 51.117182210324 -12.9976117368179 271380.066000496 T 9 CATAB v2.0g-lin.ifort 2021-Jun-13 08:26:04 2021-Jun-13 08:26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Sep-18 14:04 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin