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1265 Schweikarda (A911 UR)
Classification: Main-belt Asteroid          SPK-ID: 2001265
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07228790062715396 1.8144e-08  
a 3.030352503681993 1.2544e-08 au
q 2.811294683030582 5.882e-08 au
i 9.515971571998168 1.3219e-06 deg
node 314.2650024759106 6.5684e-06 deg
peri 110.7013093123452 1.8213e-05 deg
M 233.8149785002329 1.5916e-05 deg
tp 2459875.872632006364
(2022-Oct-23.37263201)
8.6591e-05 TDB
period 1926.806721055554
5.28
1.1964e-05
3.276e-08
d
yr
n .1868376293615909 1.1601e-09 deg/d
Q 3.249410324333404 1.3451e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2360  
   data-arc span      39812 days (109.00 yr)  
   first obs. used      1911-10-18  
   last obs. used      2020-10-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43338  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 12:13:14  

Additional Information
 Earth MOID = 1.84262 au 
 Jupiter MOID = 1.97032 au 
 T_jup = 3.218 
[ 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 11.27   n/a E2021B10  
diameter diameter 19.335 km 0.199 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 13.016 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.]
geometric albedo albedo 0.172   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

1265 Schweikarda (A911 UR)          Discovered 1911-Oct-18 by Kaiser, F. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 A911 UR = 1929 CS = 1950 AB = 1950 DA1 = 1951 JR = 1958 QD = 1961 FB = 1964 VR = 1964 XE = 1966 CY = 1966 FM = 1969 TF4 = 1974 SW2 = 1976 AJ 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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