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101154 (1998 RE74)
Classification: Main-belt Asteroid          SPK-ID: 2101154
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1580516248865079 6.8491e-08  
a 2.320321939330878 9.2455e-09 au
q 1.953591286559819 1.6371e-07 au
i 3.966268014789758 7.2644e-06 deg
node 308.6840047875567 7.1286e-05 deg
peri 87.57379515651307 7.8551e-05 deg
M 28.41534724505561 3.3194e-05 deg
tp 2458898.600685272525
(2020-Feb-19.10068527)
0.00011869 TDB
period 1290.983811865058
3.53
7.7161e-06
2.113e-08
d
yr
n .2788570985099459 1.6667e-09 deg/d
Q 2.687052592101936 1.0707e-08 au
  Orbit Determination Parameters
   # obs. used (total)      592  
   data-arc span      10101 days (27.66 yr)  
   first obs. used      1993-03-21  
   last obs. used      2020-11-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58965  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 22:28:51  

Additional Information
 Earth MOID = .965318 au 
 Jupiter MOID = 2.73968 au 
 T_jup = 3.558 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457590.5 (2016-Jul-21.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1587088028218795 6.9495e-08  
q 1.952005312698429 1.6646e-07 au
tp 2457605.360715450417
(2016-Aug-04.86071545)
0.00011303 TDB
node 308.8385773373761 7.1312e-05 deg
peri 86.89732770341966 7.8412e-05 deg
i 3.9644128195142 7.2693e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      592  
   data-arc span      10101 days (27.66 yr)  
   first obs. used      1993-03-21  
   last obs. used      2020-11-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58965  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 22:28:51  

Additional Information
 Jupiter MOID = 2.73968 au 
 T_jup = 3.558 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.829580672799811E-15 -1.156009723423886E-14 -6.566597020317805E-12 3.871358136451871E-14 -1.831151047614234E-12 -1.069846007742101E-14
q -1.156009723423886E-14 2.770930695126393E-14 1.574626737850656E-11 -9.300250946651238E-14 4.390406941875646E-12 2.57562356319961E-14
tp -6.566597020317805E-12 1.574626737850656E-11 1.277622790887877E-8 -6.449618593477637E-11 3.703533773886955E-9 1.862323467247601E-11
node 3.871358136451871E-14 -9.300250946651238E-14 -6.449618593477637E-11 5.085391781808672E-9 -5.091769896586759E-9 3.572450325044046E-10
peri -1.831151047614234E-12 4.390406941875646E-12 3.703533773886955E-9 -5.091769896586759E-9 6.148418520495523E-9 -3.51325359890622E-10
i -1.069846007742101E-14 2.57562356319961E-14 1.862323467247601E-11 3.572450325044046E-10 -3.51325359890622E-10 5.284222934971014E-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 15.7   n/a MPO449612  

101154 (1998 RE74)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1998 RE74 = 1993 FV29 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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