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20873 Evanfrank (2000 VH49)
Classification: Main-belt Asteroid          SPK-ID: 2020873
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 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1480178316051772 3.3247e-08  
a 2.434173636442945 9.1972e-09 au
q 2.073872533026171 8.2352e-08 au
i 7.868373820178554 5.1226e-06 deg
node 51.00437040192384 2.457e-05 deg
peri 56.48592251565136 3.0407e-05 deg
M 70.82906809209426 1.6829e-05 deg
tp 2458927.580362646563
(2020-Mar-19.08036265)
6.4635e-05 TDB
period 1387.1574495303
3.80
7.8618e-06
2.152e-08
d
yr
n .2595235314649381 1.4709e-09 deg/d
Q 2.794474739859719 1.0559e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1580  
   data-arc span      11357 days (31.09 yr)  
   first obs. used      1990-02-01  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48267  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:33:53  

Additional Information
 Earth MOID = 1.10223 au 
 Jupiter MOID = 2.36521 au 
 T_jup = 3.478 
[ 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 14.27   n/a E2021B10  
rotation period rot_per 4.106 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.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]

20873 Evanfrank           Discovered 2000 Nov. 2 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Evan Frank (b. 1986) was awarded second place in the 2004 Intel International Science and Engineering Fair for his physics project. He attends the duPont Manual High School, Louisville, Kentucky, U.S.A.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20041226/MPCPages.arcLast Updated: 2004-12-25

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Alternate Designations
 2000 VH49 = 1990 CG = 1998 HZ139 = 1999 NS63 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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