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49123 (1998 SX16)
Classification: Main-belt Asteroid          SPK-ID: 2049123
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05200701283472967 3.6689e-08  
a 2.363584093233599 8.6132e-09 au
q 2.240661144960837 8.6611e-08 au
i 5.095767652709861 3.5963e-06 deg
node 176.2955445029544 4.3349e-05 deg
peri 73.86417094273544 6.0339e-05 deg
M 97.85404582004664 3.9093e-05 deg
tp 2458639.729265675103
(2019-Jun-05.22926567)
0.00014491 TDB
period 1327.256969995981
3.63
7.255e-06
1.986e-08
d
yr
n .2712360968057979 1.4826e-09 deg/d
Q 2.486507041506362 9.0611e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1412  
   data-arc span      8525 days (23.34 yr)  
   first obs. used      1997-04-02  
   last obs. used      2020-08-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53484  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 04:38:13  

Additional Information
 Earth MOID = 1.2333 au 
 Jupiter MOID = 2.51143 au 
 T_jup = 3.542 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456848.5 (2014-Jul-10.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05152879914275044 3.6788e-08  
q 2.243164857642696 8.6805e-08 au
tp 2457312.006317885817
(2015-Oct-16.50631789)
0.00014942 TDB
node 176.3724839302554 4.338e-05 deg
peri 73.81656889966644 6.0582e-05 deg
i 5.092621880327767 3.5952e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1412  
   data-arc span      8525 days (23.34 yr)  
   first obs. used      1997-04-02  
   last obs. used      2020-08-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53484  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 04:38:13  

Additional Information
 Jupiter MOID = 2.51143 au 
 T_jup = 3.542 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.353389593719839E-15 -3.179416965490722E-15 -8.776124143613749E-13 2.40062870012274E-15 -2.471655901398192E-13 -2.474750563261331E-15
q -3.179416965490722E-15 7.535158132260853E-15 1.546407545000638E-12 -5.586118232297875E-15 4.300463908284475E-13 5.84676481973837E-15
tp -8.776124143613749E-13 1.546407545000638E-12 2.232551877193627E-8 -7.59238562985556E-12 6.332822614747854E-9 1.672171406192408E-12
node 2.40062870012274E-15 -5.586118232297875E-15 -7.59238562985556E-12 1.88181684953019E-9 -1.876235128494483E-9 2.972805234934926E-11
peri -2.471655901398192E-13 4.300463908284475E-13 6.332822614747854E-9 -1.876235128494483E-9 3.670158848006958E-9 -2.915880329059389E-11
i -2.474750563261331E-15 5.84676481973837E-15 1.672171406192408E-12 2.972805234934926E-11 -2.915880329059389E-11 1.292543774072409E-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 14.8   n/a MPO385131  

49123 (1998 SX16)          Discovered 1998-Sep-17 by Spacewatch at Kitt Peak
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 SX16 = 1997 GC6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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