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48791 (1997 SD33)
Classification: Main-belt Asteroid          SPK-ID: 2048791
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .150526810448695 4.5436e-08  
a 3.187452278246046 1.9257e-08 au
q 2.707655253344242 1.5077e-07 au
i .2466405610510961 4.1381e-06 deg
node 322.5241435628502 0.0011878 deg
peri 178.2535367103213 0.001188 deg
M 289.3356319475107 1.8299e-05 deg
tp 2459608.501671728260
(2022-Jan-29.00167173)
0.00010726 TDB
period 2078.566693090231
5.69
1.8836e-05
5.157e-08
d
yr
n .1731962708710508 1.5695e-09 deg/d
Q 3.667249303147849 2.2155e-08 au
  Orbit Determination Parameters
   # obs. used (total)      916  
   data-arc span      10696 days (29.28 yr)  
   first obs. used      1991-10-08  
   last obs. used      2021-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56061  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 04:57:52  

Additional Information
 Earth MOID = 1.72057 au 
 Jupiter MOID = 1.357 au 
 T_jup = 3.180 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457197.5 (2015-Jun-24.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1486223056413695 4.6312e-08  
q 2.71412718194515 1.5368e-07 au
tp 2457535.632967546600
(2016-May-27.13296755)
0.00010101 TDB
node 323.4019691712374 0.0011755 deg
peri 178.4634578468025 0.0011756 deg
i .2483814276189137 4.1572e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      916  
   data-arc span      10696 days (29.28 yr)  
   first obs. used      1991-10-08  
   last obs. used      2021-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56061  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 04:57:52  

Additional Information
 Jupiter MOID = 1.357 au 
 T_jup = 3.180 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.144795265737196E-15 -7.080562638035352E-15 4.245690916318034E-13 -1.747934198791847E-14 2.169437742120687E-13 -7.381668078385704E-17
q -7.080562638035352E-15 2.361728265178862E-14 -9.360356470089317E-13 5.646975496590705E-14 -6.420081692548469E-13 3.163076200669616E-16
tp 4.245690916318034E-13 -9.360356470089317E-13 1.02029713936186E-8 2.331802065233198E-11 1.796428505759575E-9 2.48211161982813E-13
node -1.747934198791847E-14 5.646975496590705E-14 2.331802065233198E-11 1.381766249910013E-6 -1.381747858080107E-6 1.120863935288142E-9
peri 2.169437742120687E-13 -6.420081692548469E-13 1.796428505759575E-9 -1.381747858080107E-6 1.382071704111327E-6 -1.120815119744521E-9
i -7.381668078385704E-17 3.163076200669616E-16 2.48211161982813E-13 1.120863935288142E-9 -1.120815119744521E-9 1.728249343815516E-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 MPO359067  
diameter diameter 5.676 km 0.193 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.055   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

48791 (1997 SD33)          Discovered 1997-Sep-29 by Spacewatch at Kitt Peak
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1997 SD33 = 1999 BE27 = 2000 JY25 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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