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4985 Fitzsimmons (1979 QK4)
Classification: Outer Main-belt Asteroid          SPK-ID: 2004985
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .140086032325148 3.5724e-08  
a 3.243460333096869 1.5768e-08 au
q 2.789096844029325 1.1822e-07 au
i .7996024893619011 4.9348e-06 deg
node 12.09470155181694 0.00024198 deg
peri 25.54691675349632 0.0002425 deg
M 12.64597293961206 1.5619e-05 deg
tp 2459321.551825254452
(2021-Apr-17.05182525)
9.2664e-05 TDB
period 2133.59170047575
5.84
1.5559e-05
4.26e-08
d
yr
n .168729565230183 1.2304e-09 deg/d
Q 3.697823822164412 1.7977e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2040  
   data-arc span      18223 days (49.89 yr)  
   first obs. used      1971-03-24  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49091  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 14:35:31  

Additional Information
 Earth MOID = 1.79588 au 
 Jupiter MOID = 1.72491 au 
 T_jup = 3.168 
[ 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 13.11   n/a E2021B10  
diameter diameter 11.839 km 0.123 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.087   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

4985 Fitzsimmons (1979 QK4)          Discovered 1979-Aug-23 by Lagerkvist, C.-I. at La Silla
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
1984-Sep-03 16:45 < 00:01 Jupiter 1.90061207422167 1.90061156538165 1.90061258306158 2.99093908339061 2.83802767595639 2445947.197621335 0.867826733811188 46.4449176795529 15.6648776713366 87.2478473192072 2644153.35266576 T 28 CATAB v2.0g-lin.ifort 2021-Jul-08 14:35:55 2021-Jul-08 14:35
1995-Dec-31 22:32 < 00:01 Jupiter 1.80989380136595 1.80989341598173 1.80989418675007 2.44959963742686 2.250454840607 2450083.439176973 0.579232690121136 52.4752600023008 6.69494378980408 88.3906693196752 3198830.45344294 T 28 CATAB v2.0g-lin.ifort 2021-Jul-08 14:35:55 2021-Jul-08 14:35
2007-May-26 13:21 < 00:01 Jupiter 1.74614829154121 1.74614797751203 1.74614860557028 2.10348781339797 1.85862851390863 2454247.056448386 0.336513529119932 54.45130425216 5.75855429404877 87.299919252098 3489092.64452909 T 28 CATAB v2.0g-lin.ifort 2021-Jul-08 14:35:55 2021-Jul-08 14:35
2018-Nov-12 18:21 < 00:01 Jupiter 1.71509629908609 1.71509600091056 1.71509659726153 1.92222572840497 1.64536496216523 2458435.264548394 0.299824602599376 53.0704801700044 13.4311413352263 86.799483673093 3345603.58931714 T 28 CATAB v2.0g-lin.ifort 2021-Jul-08 14:35:55 2021-Jul-08 14:35
2030-May-16 13:27 < 00:01 Jupiter 1.70928453946556 1.70928422536885 1.70928485356217 1.85121757874244 1.56074413423013 2462638.060257299 0.525188847689867 51.6651437813456 18.1065969579446 87.4411760213037 3186255.84422949 T 28 CATAB v2.0g-lin.ifort 2021-Jul-08 14:35:55 2021-Jul-08 14:35
2041-Nov-22 03:28 < 00:01 Jupiter 1.7282264613733 1.72822608961958 1.72822683312692 1.87190305784724 1.5886470317098 2466845.644238568 0.861748562834499 54.2141576617116 16.2241477844715 88.4632433493583 3070250.68892531 T 28 CATAB v2.0g-lin.ifort 2021-Jul-08 14:35:55 2021-Jul-08 14:35
2053-May-25 12:04 00:01 Jupiter 1.76852443697896 1.76852393234737 1.76852494161074 1.97981618141392 1.72098401673497 2471048.002912641 1.27679403329349 67.0685392544817 9.61622748976428 88.4504254354114 2951745.21748492 T 28 CATAB v2.0g-lin.ifort 2021-Jul-08 14:35:55 2021-Jul-08 14:35
2064-Nov-11 14:15 00:02 Jupiter 1.8346684687547 1.83466774523474 1.83466919227539 2.19608961821598 1.9747044057455 2475236.093753018 1.75767772153102 91.5887905048154 2.23296795409679 85.1065024680513 2947948.1493401 T 28 CATAB v2.0g-lin.ifort 2021-Jul-08 14:35:55 2021-Jul-08 14:35
2076-Apr-13 01:02 00:02 Jupiter 1.92262447341049 1.9226234995298 1.92262544729282 2.53362028083182 2.35332127292003 2479406.542873004 2.27501259336319 116.692190982887 7.99730424496212 79.7448338676595 3012590.69800249 T 28 CATAB v2.0g-lin.ifort 2021-Jul-08 14:35:55 2021-Jul-08 14:35
2199-Aug-09 18:42 00:05 Jupiter 1.97819281066662 1.97819091380977 1.97819470752796 3.81143389866473 3.69738670568632 2524449.279313404 4.75442503468276 184.926293099881 18.2689284425287 67.2332134015811 3113276.78294597 T 28 CATAB v2.0g-lin.ifort 2021-Jul-08 14:35:55 2021-Jul-08 14:35

Alternate Designations
 1979 QK4 = 1974 WT = 1985 PY1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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