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46875 (1998 QD104)
Classification: Main-belt Asteroid          SPK-ID: 2046875
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 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2267606743493308 4.7945e-08  
a 2.546003118049558 8.7158e-09 au
q 1.968669734105142 1.2426e-07 au
i 8.210310966856104 5.8145e-06 deg
node 137.107951117591 1.7986e-05 deg
peri 324.0833841450506 2.3739e-05 deg
M 47.62405040379337 1.1922e-05 deg
tp 2458804.204360607215
(2019-Nov-16.70436061)
4.9452e-05 TDB
period 1483.839143924934
4.06
7.6195e-06
2.086e-08
d
yr
n .2426138988676066 1.2458e-09 deg/d
Q 3.123336501993975 1.0692e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2304  
   data-arc span      15204 days (41.63 yr)  
   first obs. used      1978-11-01  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47271  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 21:42:26  

Additional Information
 Earth MOID = .99193 au 
 Jupiter MOID = 2.05281 au 
 T_jup = 3.392 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457179.5 (2015-Jun-06.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2259017710910026 4.8476e-08  
q 1.971008982149689 1.257e-07 au
tp 2457321.400013655793
(2015-Oct-25.90001366)
5.2567e-05 TDB
node 137.150773655095 1.7975e-05 deg
peri 324.344006303829 2.3729e-05 deg
i 8.211818458202846 5.8161e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2304  
   data-arc span      15204 days (41.63 yr)  
   first obs. used      1978-11-01  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47271  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 21:42:26  

Additional Information
 Jupiter MOID = 2.05281 au 
 T_jup = 3.392 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.349912657230944E-15 -6.085398958872041E-15 2.030007008090034E-12 -3.192324980750271E-14 5.855024667984181E-13 -1.613232573597782E-14
q -6.085398958872041E-15 1.580078634547506E-14 -5.333608338848671E-12 8.252147809863224E-14 -1.539440883355503E-12 4.188452109717324E-14
tp 2.030007008090034E-12 -5.333608338848671E-12 2.763273886241316E-9 -3.339765845540401E-11 8.182004526383866E-10 -1.750410766217549E-11
node -3.192324980750271E-14 8.252147809863224E-14 -3.339765845540401E-11 3.230983239405386E-10 -3.284430631108737E-10 2.079324605961076E-11
peri 5.855024667984181E-13 -1.539440883355503E-12 8.182004526383866E-10 -3.284430631108737E-10 5.630818540287996E-10 -2.537409421239043E-11
i -1.613232573597782E-14 4.188452109717324E-14 -1.750410766217549E-11 2.079324605961076E-11 -2.537409421239043E-11 3.382758232635875E-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 13.7   n/a MPO502468  
diameter diameter 4.514 km 0.176 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 88.734 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.315   0.062 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46875 (1998 QD104)          Discovered 1998-Aug-26 by Elst, E. W. at La Silla
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 QD104 = 1978 VZ16 = 1986 RV3 = 1999 VG77 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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