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20048 (1993 FF19)
Classification: Main-belt Asteroid          SPK-ID: 2020048
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09406482128728332 2.948e-08  
a 2.707495452371395 1.194e-08 au
q 2.452815376507947 7.9866e-08 au
i 9.428228016185628 3.9703e-06 deg
node 147.5531216339984 2.151e-05 deg
peri 304.8018425043631 3.2991e-05 deg
M 167.4769013579092 2.6328e-05 deg
tp 2458443.488552602242
(2018-Nov-20.98855260)
0.000117 TDB
period 1627.234077377576
4.46
1.0764e-05
2.947e-08
d
yr
n .2212343048888025 1.4634e-09 deg/d
Q 2.962175528234842 1.3063e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1966  
   data-arc span      9985 days (27.34 yr)  
   first obs. used      1993-03-17  
   last obs. used      2020-07-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51475  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:12:07  

Additional Information
 Earth MOID = 1.48324 au 
 Jupiter MOID = 2.1833 au 
 T_jup = 3.339 
[ 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 13.77   n/a E2021B10  
diameter diameter 6.420 km 0.077 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 7.032 h n/a LCDB (Rev. 2020-October); 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 0.232   0.023 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20048 (1993 FF19)          Discovered 1993-Mar-17 by UESAC at La Silla
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1993 FF19 = 1997 ES38 = 1998 KC51 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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