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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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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1926-Sep-10 08:31 00:02 Jupiter 1.99139308607362 1.99139281099323 1.99139336115446 4.40228972742013 4.30458725706177 2424768.854822924 1.6150223499211 58.4816634418742 6.19440149715995 78.7542900847377 11080358.1959167 T 36 CATAB v2.0f-lin.ifort 2021-Apr-12 12:13:57 2021-Apr-12 12:13
1973-Dec-31 12:01 < 00:01 Jupiter 1.97965974680735 1.97965956297512 1.97965993063969 4.36051711664928 4.26126556064728 2442048.000654324 0.753055671245442 38.0171549715854 5.95227506612886 80.7479726884676 11235438.1298087 T 36 CATAB v2.0f-lin.ifort 2021-Apr-12 12:13:57 2021-Apr-12 12:13
2021-Apr-21 20:39 < 00:01 Jupiter 1.97133604356898 1.97133589043745 1.97133619670051 4.31989744384161 4.21926242287149 2459326.360301455 0.119391589345001 34.5530878934574 5.2263288878604 82.0054989967541 12093279.5567821 T 36 CATAB v2.0f-lin.ifort 2021-Apr-12 12:13:57 2021-Apr-12 12:13
2068-Aug-11 02:32 < 00:01 Jupiter 1.96908535179447 1.96908519657299 1.96908550701607 4.28570920822623 4.18413463566849 2476604.605653349 0.970783093150009 38.1176880078523 5.05391011384387 81.9145232191391 11956421.5771261 T 36 CATAB v2.0f-lin.ifort 2021-Apr-12 12:13:57 2021-Apr-12 12:13
2115-Dec-03 02:44 00:02 Jupiter 1.97499950078083 1.97499931074196 1.97499969082015 4.25994572354481 4.15805159127062 2493883.613568419 1.83311798204343 58.8994971303301 5.0670121490858 81.9817141046646 11910478.5301649 T 36 CATAB v2.0f-lin.ifort 2021-Apr-12 12:13:57 2021-Apr-12 12:13
2163-Mar-25 02:19 00:03 Jupiter 1.97731940430586 1.97731911019693 1.97731969841637 4.22273787255342 4.12004574769022 2511162.596539036 2.70369319676743 98.8805720463563 5.07834009836148 81.3756088544941 12013157.3288501 T 36 CATAB v2.0f-lin.ifort 2021-Apr-12 12:13:57 2021-Apr-12 12:13

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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