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JPL Small-Body Database Browser
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49075 (1998 RJ58)
Classification: Main-belt Asteroid          SPK-ID: 2049075
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2412647089384969 2.9175e-08  
a 2.325818548774719 6.079e-09 au
q 1.764680613560829 6.8401e-08 au
i 1.845357375264168 4.1568e-06 deg
node 166.1341204818315 0.00011167 deg
peri 245.2280315331609 0.000112 deg
M 8.396963896324806 9.6317e-06 deg
tp 2458970.280870022829
(2020-Apr-30.78087002)
3.4618e-05 TDB
period 1295.573843844096
3.55
5.0794e-06
1.391e-08
d
yr
n .2778691478764685 1.0894e-09 deg/d
Q 2.886956483988609 7.5457e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1016  
   data-arc span      8666 days (23.73 yr)  
   first obs. used      1996-02-10  
   last obs. used      2019-11-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57941  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 09:19:37  

Additional Information
 Earth MOID = .776402 au 
 Jupiter MOID = 2.49275 au 
 T_jup = 3.534 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456908.5 (2014-Sep-08.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2418919101429298 2.9167e-08  
q 1.762841910885712 6.8379e-08 au
tp 2456376.735679839227
(2013-Mar-25.23567984)
3.167e-05 TDB
node 166.2379971032203 0.00011153 deg
peri 244.663186681025 0.00011185 deg
i 1.845610612151554 4.1608e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1016  
   data-arc span      8666 days (23.73 yr)  
   first obs. used      1996-02-10  
   last obs. used      2019-11-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57941  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 09:19:37  

Additional Information
 Jupiter MOID = 2.49275 au 
 T_jup = 3.534 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.507177020393694E-16 -1.989862934262244E-15 -1.044532165270065E-14 -2.581650615418415E-15 1.310652919866125E-14 -4.344549317489131E-16
q -1.989862934262244E-15 4.675736592409623E-15 4.351083201385304E-14 7.624682421207166E-15 -2.497441650243556E-14 1.031619560759823E-15
tp -1.044532165270065E-14 4.351083201385304E-14 1.002962914452097E-9 8.698863637782448E-12 2.814421805767959E-10 1.112007726607808E-13
node -2.581650615418415E-15 7.624682421207166E-15 8.698863637782448E-12 1.243854068004807E-8 -1.242885248831327E-8 -8.727429755140937E-11
peri 1.310652919866125E-14 -2.497441650243556E-14 2.814421805767959E-10 -1.242885248831327E-8 1.251106872061675E-8 8.724871167523254E-11
i -4.344549317489131E-16 1.031619560759823E-15 1.112007726607808E-13 -8.727429755140937E-11 8.724871167523254E-11 1.731258918251607E-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 MPO502483  
diameter diameter 1.788 km 0.278 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.220   0.070 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

49075 (1998 RJ58)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 RJ58 = 2000 FZ9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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