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46941 (1998 SQ74)
Classification: Main-belt Asteroid          SPK-ID: 2046941
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04064077796278042 4.0355e-08  
a 2.728126765064454 1.5564e-08 au
q 2.617253570951151 1.1103e-07 au
i 4.554531402608664 4.3664e-06 deg
node 76.6256700457039 5.8625e-05 deg
peri 63.20301436703819 8.0993e-05 deg
M 90.50113390973227 5.5442e-05 deg
tp 2458186.741654799077
(2018-Mar-09.24165480)
0.00025367 TDB
period 1645.868928237971
4.51
1.4084e-05
3.856e-08
d
yr
n .2187294466913642 1.8718e-09 deg/d
Q 2.838999959177757 1.6196e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1097  
   data-arc span      7541 days (20.65 yr)  
   first obs. used      1998-09-18  
   last obs. used      2019-05-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52967  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:34:36  

Additional Information
 Earth MOID = 1.63483 au 
 Jupiter MOID = 2.15995 au 
 T_jup = 3.350 
[ show covariance matrix ]

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 14.5   n/a MPO257186  
diameter diameter 4.183 km 0.540 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.175   0.028 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46941 (1998 SQ74)          Discovered 1998-Sep-21 by Elst, E. W. at La Silla
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 SQ74 = 2000 AU62 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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