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78498 (2002 RX72)
Classification: Main-belt Asteroid          SPK-ID: 2078498
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1899671856952494 4.8332e-08  
a 3.101686875059643 1.8352e-08 au
q 2.51246814849667 1.4896e-07 au
i 1.976035700421548 4.778e-06 deg
node 172.9045277102511 0.00013047 deg
peri 219.1273180083457 0.00013103 deg
M 85.38766951987037 1.066e-05 deg
tp 2458727.252841400797
(2019-Aug-31.75284140)
5.8686e-05 TDB
period 1995.240976287178
5.46
1.7708e-05
4.848e-08
d
yr
n .180429333738876 1.6013e-09 deg/d
Q 3.690905601622616 2.1838e-08 au
  Orbit Determination Parameters
   # obs. used (total)      588  
   data-arc span      9805 days (26.84 yr)  
   first obs. used      1994-03-13  
   last obs. used      2021-01-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56047  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 07:15:22  

Additional Information
 Earth MOID = 1.5176 au 
 Jupiter MOID = 1.75026 au 
 T_jup = 3.193 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457472.5 (2016-Mar-25.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1855909640294607 4.7741e-08  
q 2.532783439864409 1.4594e-07 au
tp 2456725.813274412348
(2014-Mar-09.31327441)
6.4275e-05 TDB
node 172.8655383405234 0.00013045 deg
peri 218.7912123901988 0.00013105 deg
i 1.971163251878732 4.7782e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      588  
   data-arc span      9805 days (26.84 yr)  
   first obs. used      1994-03-13  
   last obs. used      2021-01-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56047  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 07:15:22  

Additional Information
 Jupiter MOID = 1.75026 au 
 T_jup = 3.193 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.279208785393844E-15 -6.928631933288601E-15 -3.648325016617538E-13 1.211321173574937E-14 -1.397156245271503E-13 -1.31142851904755E-15
q -6.928631933288601E-15 2.129806912853877E-14 8.205187907944279E-13 -4.418036575579708E-14 3.918436398388079E-13 4.149491431067581E-15
tp -3.648325016617538E-13 8.205187907944279E-13 4.131293533165319E-9 -6.522761185082499E-12 8.255988232259384E-10 -5.489364136542849E-13
node 1.211321173574937E-14 -4.418036575579708E-14 -6.522761185082499E-12 1.701649014522852E-8 -1.700806624925838E-8 8.7736263373248E-11
peri -1.397156245271503E-13 3.918436398388079E-13 8.255988232259384E-10 -1.700806624925838E-8 1.717496851794849E-8 -8.774164850526969E-11
i -1.31142851904755E-15 4.149491431067581E-15 -5.489364136542849E-13 8.7736263373248E-11 -8.774164850526969E-11 2.283081986309422E-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 15.31   n/a E2020-QM9  

78498 (2002 RX72)          Discovered 2002-Sep-05 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 2002 RX72 = 1997 WD58 = 2000 GZ183 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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