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74217 (1998 RB73)
Classification: Mars-crossing Asteroid          SPK-ID: 2074217
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3386527403963527 4.5915e-08  
a 2.418125418278921 1.1704e-08 au
q 1.599220618756688 1.077e-07 au
i 7.415507049506263 5.062e-06 deg
node .07270193505475032 3.1909e-05 deg
peri 301.6609447079286 3.3121e-05 deg
M 206.1877517959224 1.3777e-05 deg
tp 2459187.320232986157
(2020-Dec-03.82023299)
5.5471e-05 TDB
period 1373.462037917317
3.76
9.9715e-06
2.73e-08
d
yr
n .2621113580582794 1.903e-09 deg/d
Q 3.237030217801155 1.5667e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1028  
   data-arc span      7612 days (20.84 yr)  
   first obs. used      1998-06-29  
   last obs. used      2019-05-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51092  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 08:02:13  

Additional Information
 Earth MOID = .599433 au 
 Jupiter MOID = 2.0714 au 
 T_jup = 3.424 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456627.5 (2013-Dec-01.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3405141647916713 4.619e-08  
q 1.593607803605421 1.0857e-07 au
tp 2456438.412898202643
(2013-May-25.91289820)
4.3139e-05 TDB
node .2003822588517688 3.2017e-05 deg
peri 301.2486063732566 3.318e-05 deg
i 7.409001531544027 5.0548e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1028  
   data-arc span      7612 days (20.84 yr)  
   first obs. used      1998-06-29  
   last obs. used      2019-05-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51092  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 08:02:13  

Additional Information
 Jupiter MOID = 2.0714 au 
 T_jup = 3.424 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.133544316526255E-15 -5.004893108653594E-15 1.205701527411609E-12 1.791003394008012E-14 2.164157222817973E-13 1.500452682532933E-16
q -5.004893108653594E-15 1.178689247175181E-14 -2.771869386419458E-12 -4.021188697492327E-14 -4.967660657085634E-13 -4.646578432536779E-16
tp 1.205701527411609E-12 -2.771869386419458E-12 1.860980760034304E-9 2.109943799407704E-11 3.914692859924434E-10 -2.321244124810515E-12
node 1.791003394008012E-14 -4.021188697492327E-14 2.109943799407704E-11 1.025107864996907E-9 -1.011489516486858E-9 3.381190676443902E-12
peri 2.164157222817973E-13 -4.967660657085634E-13 3.914692859924434E-10 -1.011489516486858E-9 1.100933132188959E-9 -3.975999879272797E-12
i 1.500452682532933E-16 -4.646578432536779E-16 -2.321244124810515E-12 3.381190676443902E-12 -3.975999879272797E-12 2.555087778355879E-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 14.7   n/a MPO333432  

74217 (1998 RB73)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

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