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22922 Sophiecai (1999 TF97)
Classification: Main-belt Asteroid          SPK-ID: 2022922
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1280841464958586 4.0862e-08  
a 2.358128287636084 9.7228e-09 au
q 2.056089438586475 9.9344e-08 au
i 7.671718038127779 3.3197e-06 deg
node 94.25595150168429 3.1746e-05 deg
peri 268.2371279485399 3.4076e-05 deg
M 317.6457404495824 1.3401e-05 deg
tp 2459356.112386012270
(2021-May-21.61238601)
4.9461e-05 TDB
period 1322.664108853838
3.62
8.1802e-06
2.24e-08
d
yr
n .2721779457007871 1.6833e-09 deg/d
Q 2.660167136685692 1.0968e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1280  
   data-arc span      10088 days (27.62 yr)  
   first obs. used      1992-12-27  
   last obs. used      2020-08-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54063  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:14:47  

Additional Information
 Earth MOID = 1.06891 au 
 Jupiter MOID = 2.80336 au 
 T_jup = 3.530 
[ 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 15.36   n/a E2021B10  
diameter diameter 1.773 km 0.236 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.426   0.109 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

22922 Sophiecai           Discovered 1999 Oct. 2 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Sophie Cai (b. 1990) is a finalist in the 2007 Intel Science Talent Search (STS), a science competition for high school seniors, for her behavioral and social sciences project. She attends the Ridgefield High School, Ridgefield, Connecticut.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20070303/MPCPages.arcLast Updated: 2010-04-12

Alternate Designations
 1999 TF97 = 1996 XZ34 = 1998 HA146 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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