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10953 Gerdatschira (4276 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2010953
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1828637092359948 3.6263e-08  
a 2.217539898567376 7.3258e-09 au
q 1.812032327336534 7.8764e-08 au
i 5.508728977693007 4.4867e-06 deg
node 355.7784755004057 4.3932e-05 deg
peri 255.0918744049246 4.5783e-05 deg
M 181.7284619169927 1.3532e-05 deg
tp 2459797.789804206683
(2022-Aug-06.28980421)
4.6047e-05 TDB
period 1206.161857504621
3.30
5.977e-06
1.636e-08
d
yr
n .2984674053155596 1.479e-09 deg/d
Q 2.623047469798218 8.6654e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1065  
   data-arc span      22027 days (60.31 yr)  
   first obs. used      1960-09-24  
   last obs. used      2021-01-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55043  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 22:26:54  

Additional Information
 Earth MOID = .806278 au 
 Jupiter MOID = 2.43692 au 
 T_jup = 3.624 
[ 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 15.77   n/a MPCxxxxx  
rotation period rot_per 18.7924 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.]

10953 Gerdatschira           Discovered 1960 Sept. 24 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Gerda Tschira (b. 1943) is the founder and director of the Heidelberg Carl Bosch Museum, built in memory of the great German chemist and 1931 Nobel laureate. She is very much interested in the natural sciences including astronomy. The name was suggested by L. D. Schmadel.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20060219/MPCPages.arcLast Updated: 2010-06-03

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Alternate Designations
 4276 P-L = 1989 GX1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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