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78547 (2002 RZ122)
Classification: Main-belt Asteroid          SPK-ID: 2078547
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1377480204965182 4.8312e-08  
a 2.755624174308285 1.6565e-08 au
q 2.376042399064966 1.3485e-07 au
i 12.61706792565397 5.471e-06 deg
node 27.59449929047602 2.0053e-05 deg
peri 343.2696425171202 2.5645e-05 deg
M 346.2831558422132 1.6957e-05 deg
tp 2459264.161975283259
(2021-Feb-18.66197528)
7.8945e-05 TDB
period 1670.81515531858
4.57
1.5066e-05
4.125e-08
d
yr
n .2154636907943043 1.9429e-09 deg/d
Q 3.135205949551604 1.8847e-08 au
  Orbit Determination Parameters
   # obs. used (total)      770  
   data-arc span      9958 days (27.26 yr)  
   first obs. used      1993-10-09  
   last obs. used      2021-01-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58905  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 19:27:46  

Additional Information
 Earth MOID = 1.37832 au 
 Jupiter MOID = 2.33208 au 
 T_jup = 3.295 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456981.5 (2014-Nov-20.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1402384228054145 4.8183e-08  
q 2.36800704239472 1.3485e-07 au
tp 2457595.447361447648
(2016-Jul-25.94736145)
7.2454e-05 TDB
node 27.72746585307528 2.0021e-05 deg
peri 343.6802722956542 2.5428e-05 deg
i 12.63366101052535 5.4756e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      770  
   data-arc span      9958 days (27.26 yr)  
   first obs. used      1993-10-09  
   last obs. used      2021-01-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58905  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 19:27:46  

Additional Information
 Jupiter MOID = 2.33208 au 
 T_jup = 3.295 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.321643648383399E-15 -6.462333102196078E-15 -2.359098253443401E-13 -6.681351109821989E-15 -7.741112723053979E-14 -1.461155506793818E-15
q -6.462333102196078E-15 1.818386260593309E-14 8.983312986449861E-13 1.785531412505809E-14 2.510321425990725E-13 5.124033426593794E-15
tp -2.359098253443401E-13 8.983312986449861E-13 5.249586681088474E-9 7.490852965380334E-12 1.149453766712535E-9 -2.209802052431092E-12
node -6.681351109821989E-15 1.785531412505809E-14 7.490852965380334E-12 4.00835003862959E-10 -3.889832201359203E-10 -1.702535011605233E-11
peri -7.741112723053979E-14 2.510321425990725E-13 1.149453766712535E-9 -3.889832201359203E-10 6.466061561569612E-10 1.607134066379577E-11
i -1.461155506793818E-15 5.124033426593794E-15 -2.209802052431092E-12 -1.702535011605233E-11 1.607134066379577E-11 2.998233899988812E-11

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 15.02   n/a E2020-QM9  

78547 (2002 RZ122)          Discovered 2002-Sep-08 by NEAT at Haleakala
Reference: 20040415/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
1950-May-14 17:58 00:01 Cybel 0.0428853930172981 0.0428758093602403 0.0428949776680158 4.81435302167638 4.81435299221394 2433416.248578124 1.41599929359483 578.677827298743 39.4330476323895 -34.441397158557 92433.8890143291 T 18 CATAB v2.0f-lin.ifort 2021-Feb-24 19:27:48 2021-Feb-24 19:27

Alternate Designations
 2002 RZ122 = 1993 TU23 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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