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992 Swasey (A922 VD)
Classification: Main-belt Asteroid          SPK-ID: 2000992
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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 47 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08558386884675262 2.0361e-08  
a 3.032886765897072 1.0748e-08 au
q 2.773320582697485 6.1385e-08 au
i 10.8391161803622 9.3693e-07 deg
node 212.1002050465086 2.7398e-06 deg
peri 347.218812378691 1.395e-05 deg
M 107.1363802061023 1.2276e-05 deg
tp 2458822.360814254210
(2019-Dec-04.86081425)
6.5532e-05 TDB
period 1929.224288433742
5.28
1.0255e-05
2.808e-08
d
yr
n .1866034976639597 9.9196e-10 deg/d
Q 3.292452949096659 1.1668e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3271  
   data-arc span      36011 days (98.59 yr)  
   first obs. used      1922-11-21  
   last obs. used      2021-06-25  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41148  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 11:49:20  

Additional Information
 Earth MOID = 1.77197 au 
 Jupiter MOID = 1.67674 au 
 T_jup = 3.210 
[ 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 10.61   n/a E2021B10  
diameter diameter 27.585 km 0.376 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 13.305 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:
[Behrend, R. (2004) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2020) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Marchini, A.; Conti, M.; Vallerani, C.; Papini, R.; Salvaggio, F. (2020) Minor Planet Bull. 47, 265-267.]
[Polakis, T. (2020) Minor Planet Bull. 47, 314-321.]
geometric albedo albedo 0.111   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

992 Swasey (A922 VD)          Discovered 1922-Nov-14 by Struve, O. at Williams Bay
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ hide close-approach data ]
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
1927-May-27 01:56 00:01 Jupiter 1.83645334950082 1.83645267807925 1.83645402092333 2.89703720766237 2.73319773951645 2425027.580412895 1.46813318073612 79.8600945064118 9.18544999922153 -61.8132496990484 8130571.16736885 T 47 CATAB v2.0g-lin.ifort 2021-Jul-08 11:50:36 2021-Jul-08 11:50
1965-Jun-02 12:06 < 00:01 Jupiter 1.9423387877753 1.94233823915756 1.94233933639314 3.80893058700862 3.6926663244924 2438914.004168906 0.793350761907488 38.9121989301197 11.3102607793826 50.1657138794004 6642367.00149595 T 47 CATAB v2.0g-lin.ifort 2021-Jul-08 11:50:36 2021-Jul-08 11:50
1974-Sep-01 11:57 < 00:01 Jupiter 1.88059175405046 1.88059139292748 1.88059211517355 2.85835529233513 2.69618076899162 2442291.997648603 0.703295889962804 34.5371356006736 8.94076092359837 -60.1513533497361 8274053.10379958 T 47 CATAB v2.0g-lin.ifort 2021-Jul-08 11:50:36 2021-Jul-08 11:50
2012-Sep-09 06:08 < 00:01 Jupiter 1.87901124521082 1.87901104209471 1.87901144832694 3.74356694907819 3.6211505855043 2456179.755896749 0.132077421816276 15.7912087215726 8.47198008748646 -89.1970055854595 7662175.5852749 T 47 CATAB v2.0g-lin.ifort 2021-Jul-08 11:50:36 2021-Jul-08 11:50
2021-Dec-03 22:53 < 00:01 Jupiter 1.93144798386628 1.93144776875732 1.93144819897524 2.85011862987524 2.69185636755199 2459552.453442213 0.173010279979253 8.87928640145987 6.52168068093996 42.5112414189094 8127297.22423819 T 47 CATAB v2.0g-lin.ifort 2021-Jul-08 11:50:36 2021-Jul-08 11:50
2059-Dec-18 20:40 < 00:01 Jupiter 1.8218774898925 1.82187708429349 1.82187789549181 3.69384622783078 3.5657629187638 2473446.361137788 0.723916649075054 52.1376932390198 9.74511576763054 71.2536893864598 6868926.48068501 T 47 CATAB v2.0g-lin.ifort 2021-Jul-08 11:50:36 2021-Jul-08 11:50
2069-Mar-09 11:48 < 00:01 Jupiter 1.98601796852624 1.98601741286981 1.98601852418267 2.89955660413893 2.74853465553716 2476814.991500622 0.95216305093232 35.0482362783245 7.59183127042503 -46.1193680816086 7078228.65947947 T 47 CATAB v2.0g-lin.ifort 2021-Jul-08 11:50:36 2021-Jul-08 11:50
2107-Apr-04 15:57 00:01 Jupiter 1.77970588953122 1.77970522350767 1.77970655555701 3.66273236119392 3.53040229794836 2490719.164248662 1.42740441396568 112.045279536131 9.4670189712496 73.9888200205547 6879680.27913668 T 47 CATAB v2.0g-lin.ifort 2021-Jul-08 11:50:36 2021-Jul-08 11:50
2154-Jul-28 14:51 00:02 Jupiter 1.74952874486199 1.7495278909096 1.74952959882044 3.63830154438048 3.50270633257738 2508001.118620840 2.09038951607495 176.578503140061 9.14150347420375 76.7285821453743 6949444.99035698 T 47 CATAB v2.0g-lin.ifort 2021-Jul-08 11:50:36 2021-Jul-08 11:50

Alternate Designations
 A922 VD = 1969 TA4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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