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22120 Gaylefarrar (2000 SO102)
Classification: Main-belt Asteroid          SPK-ID: 2022120
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1797074985505978 4.6965e-08  
a 2.302536722691003 9.2199e-09 au
q 1.888753607935312 1.0845e-07 au
i 4.176198487564851 4.9826e-06 deg
node 207.6869947615809 4.8155e-05 deg
peri 181.2130231255393 4.9313e-05 deg
M 269.4869339129552 1.3121e-05 deg
tp 2459521.361087303960
(2021-Nov-02.86108730)
4.7849e-05 TDB
period 1276.169247413869
3.49
7.6651e-06
2.099e-08
d
yr
n .2820942447324543 1.6944e-09 deg/d
Q 2.716319837446695 1.0877e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1031  
   data-arc span      14431 days (39.51 yr)  
   first obs. used      1981-03-03  
   last obs. used      2020-09-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50048  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:01:02  

Additional Information
 Earth MOID = .892515 au 
 Jupiter MOID = 2.72611 au 
 T_jup = 3.565 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.67   n/a E2021B10  
rotation period rot_per 4.60242 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:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]

22120 Gaylefarrar           Discovered 2000 Sept. 24 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Gayle Farrar mentored a finalist in the 2005 Discovery Channel Young Scientist Challenge (DCYSC), a middle school science competition. She teaches at the Southern Middle School, Oakland, Maryland.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20051019/MPCPages.arcLast Updated: 2005-10-26

Alternate Designations
 2000 SO102 = 1981 EH43 = 1993 SF9 = 1998 BC36 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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