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2802 Weisell (1939 BU)
Classification: Main-belt Asteroid          SPK-ID: 2002802
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 50 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1231069349404695 2.3428e-08  
a 3.113283205990178 1.3951e-08 au
q 2.730016452899089 7.6169e-08 au
i 9.613886177418873 1.7689e-07 deg
node 129.3374033925182 1.7949e-06 deg
peri 59.30395133391414 4.7651e-06 deg
M 270.0716215832059 4.1166e-06 deg
tp 2459701.711043859007
(2022-May-02.21104386)
2.4308e-05 TDB
period 2006.440891805806
5.49
1.3487e-05
3.693e-08
d
yr
n .1794221805736816 1.206e-09 deg/d
Q 3.496549959081267 1.5668e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3058  
   data-arc span      30006 days (82.15 yr)  
   first obs. used      1939-01-18  
   last obs. used      2021-03-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42112  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 14:18:22  

Additional Information
 Earth MOID = 1.74702 au 
 Jupiter MOID = 1.53485 au 
 T_jup = 3.185 
[ 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 11.03   n/a E2021B10  
diameter diameter 18.813 km 0.371 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 14.683 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:
[Brinsfield, J.W. (2011) Minor Planet Bull. 38, 154-155.]
geometric albedo albedo 0.199   0.035 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

2802 Weisell (1939 BU)          Discovered 1939-Jan-19 by Vaisala, Y. at Turku
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
1903-Sep-09 10:47 00:03 Jupiter 1.55788836121862 1.55788799996879 1.55788872247368 2.41237440588412 2.17535101989117 2416366.949388263 2.49895848241003 186.562298253122 3.91746476694923 85.0713242499406 6678122.73435445 T 50 CATAB v2.0f-lin.ifort 2021-Apr-12 14:20:30 2021-Apr-12 14:20
1965-Sep-04 21:40 00:01 Jupiter 1.9735266105775 1.97352603771209 1.9735271834429 3.32241443923062 3.19061953526728 2439008.402852159 1.1262079880583 31.4492170970735 1.69381857990729 -51.6401366772666 19572952.2451736 T 50 CATAB v2.0f-lin.ifort 2021-Apr-12 14:20:30 2021-Apr-12 14:20
1975-Aug-29 13:36 < 00:01 Jupiter 1.58379636399428 1.58379607288056 1.58379665510845 1.78098593314147 1.44993121195411 2442654.066515285 0.954892551644498 72.5949895786841 16.2800959734115 56.2781667577157 4445902.59934727 T 50 CATAB v2.0f-lin.ifort 2021-Apr-12 14:20:30 2021-Apr-12 14:20
1985-Oct-01 04:55 < 00:01 Jupiter 1.77436831767957 1.77436800917448 1.77436862618487 3.24205445093497 3.09130809427374 2446339.704710600 0.620207760994623 36.9943822477468 4.77504690355311 -71.561543244747 10842765.701539 T 50 CATAB v2.0f-lin.ifort 2021-Apr-12 14:20:30 2021-Apr-12 14:20
2047-Sep-08 09:23 < 00:01 Jupiter 1.7071980339302 1.70719768003248 1.70719838782782 1.79217783175517 1.48983416011549 2468961.891003568 0.803052171738688 49.1658893448606 20.354660177086 -58.0319228777397 3309585.10490497 T 50 CATAB v2.0f-lin.ifort 2021-Apr-12 14:20:30 2021-Apr-12 14:20
2057-Sep-07 13:05 < 00:01 Jupiter 1.60931115940886 1.60931082063429 1.60931149818417 2.59182924077515 2.3801106187575 2472614.045099712 0.985602242781206 71.3728203106607 4.70989378048237 -86.8733483694676 7269353.68207452 T 50 CATAB v2.0f-lin.ifort 2021-Apr-12 14:20:30 2021-Apr-12 14:20
2119-Sep-08 10:18 00:02 Jupiter 1.87232399056258 1.87232287046889 1.87232511065584 2.8483710215974 2.68485297339166 2495258.929171790 2.36707102404767 46.9378826472062 1.9940749186595 -59.6776742920235 6975955.6356989 T 50 CATAB v2.0f-lin.ifort 2021-Apr-12 14:20:30 2021-Apr-12 14:20
2129-Aug-26 05:07 00:03 Jupiter 1.56565406177095 1.56565380865328 1.56565431489129 1.83798894815049 1.51532131688942 2498898.712858840 2.7415525789017 208.977068288745 13.4036063108514 57.9829672334811 4337467.01367058 T 50 CATAB v2.0f-lin.ifort 2021-Apr-12 14:20:30 2021-Apr-12 14:20
2139-Oct-05 10:12 00:03 Jupiter 1.86540781210203 1.86540606373879 1.86540956046845 3.54102285223648 3.41038213197225 2502590.925235990 2.72266932345405 151.849599682015 4.30991667757834 -60.1023209679821 12701199.8304127 T 50 CATAB v2.0f-lin.ifort 2021-Apr-12 14:20:30 2021-Apr-12 14:20

Alternate Designations
 1939 BU = 1945 GA = 1951 KZ = 1952 OT = 1962 JO = 1969 RQ = 1975 VB6 = 1977 AL = 1978 GM2 = 1983 CZ1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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