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74662 (1999 RH93)
Classification: Main-belt Asteroid          SPK-ID: 2074662
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2371851187824866 3.9237e-08  
a 2.580783698086141 9.0757e-09 au
q 1.968660210103675 9.9582e-08 au
i 4.343018886990876 5.9758e-06 deg
node 23.2345744923102 5.9889e-05 deg
peri 326.6175839217225 6.1578e-05 deg
M 3.909144906593412 1.4361e-05 deg
tp 2458984.056089450125
(2020-May-14.55608945)
6.0363e-05 TDB
period 1514.348518513694
4.15
7.9882e-06
2.187e-08
d
yr
n .2377259894923882 1.254e-09 deg/d
Q 3.192907186068607 1.1228e-08 au
  Orbit Determination Parameters
   # obs. used (total)      489  
   data-arc span      9131 days (25.00 yr)  
   first obs. used      1995-11-16  
   last obs. used      2020-11-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54713  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 22:01:00  

Additional Information
 Earth MOID = .964584 au 
 Jupiter MOID = 2.24254 au 
 T_jup = 3.381 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457542.5 (2016-Jun-03.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2387997855108936 3.9449e-08  
q 1.96418783555404 1.0037e-07 au
tp 2457470.922186082780
(2016-Mar-23.42218608)
5.6338e-05 TDB
node 23.29389625790177 5.9783e-05 deg
peri 326.8193466507417 6.1452e-05 deg
i 4.348398423434021 5.9816e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      489  
   data-arc span      9131 days (25.00 yr)  
   first obs. used      1995-11-16  
   last obs. used      2020-11-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54713  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 22:01:00  

Additional Information
 Jupiter MOID = 2.24254 au 
 T_jup = 3.381 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.556248957579214E-15 -3.951222142972047E-15 1.060200514752745E-12 -1.395541090243135E-14 2.81511611040344E-13 1.344872440585741E-15
q -3.951222142972047E-15 1.007469817351639E-14 -2.590614635762333E-12 3.41772929370247E-14 -6.897137148880098E-13 -3.076355270061097E-15
tp 1.060200514752745E-12 -2.590614635762333E-12 3.173955916735716E-9 -3.453573345680206E-11 8.225107686626618E-10 1.990326018150868E-12
node -1.395541090243135E-14 3.41772929370247E-14 -3.453573345680206E-11 3.573957805734592E-9 -3.571340337404815E-9 1.413116967239746E-10
peri 2.81511611040344E-13 -6.897137148880098E-13 8.225107686626618E-10 -3.571340337404815E-9 3.776338330523178E-9 -1.404025412060281E-10
i 1.344872440585741E-15 -3.076355270061097E-15 1.990326018150868E-12 1.413116967239746E-10 -1.404025412060281E-10 3.577987882187253E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.6   n/a MPO436305  

74662 (1999 RH93)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 RH93 = 1995 WD10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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