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43971 Gabzdyl (1997 GB4)
Classification: Main-belt Asteroid          SPK-ID: 2043971
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1778712756744905 3.4263e-08  
a 2.646049627817229 1.3539e-08 au
q 2.175393405019368 9.0105e-08 au
i 2.335842009047784 5.1655e-06 deg
node 183.8274405849488 9.2716e-05 deg
peri 79.98789209019807 9.4073e-05 deg
M 176.7261802715549 1.904e-05 deg
tp 2458624.719511584850
(2019-May-21.21951158)
7.9842e-05 TDB
period 1572.155157784362
4.30
1.2066e-05
3.303e-08
d
yr
n .2289850325634194 1.7574e-09 deg/d
Q 3.116705850615091 1.5947e-08 au
  Orbit Determination Parameters
   # obs. used (total)      655  
   data-arc span      9603 days (26.29 yr)  
   first obs. used      1994-10-29  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5449  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 09:24:44  

Additional Information
 Earth MOID = 1.16123 au 
 Jupiter MOID = 1.96168 au 
 T_jup = 3.369 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457176.5 (2015-Jun-03.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1776557524642474 3.4206e-08  
q 2.176297068695282 8.9933e-08 au
tp 2457053.900678701473
(2015-Jan-31.40067870)
7.4458e-05 TDB
node 183.8671279360185 9.2684e-05 deg
peri 80.22784763995631 9.405e-05 deg
i 2.335882228632044 5.1668e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      655  
   data-arc span      9603 days (26.29 yr)  
   first obs. used      1994-10-29  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5449  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 09:24:44  

Additional Information
 Jupiter MOID = 1.96168 au 
 T_jup = 3.369 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.170018376738719E-15 -3.052764376915383E-15 -1.415543451986456E-13 -4.76979132041342E-15 -4.586833345073356E-14 3.734352469308252E-16
q -3.052764376915383E-15 8.087978297499459E-15 7.035945515387555E-13 1.277947599535084E-14 1.882733191524603E-13 -7.147793377283029E-16
tp -1.415543451986456E-13 7.035945515387555E-13 5.543966610067303E-9 1.416104617025967E-12 1.201018824671183E-9 -1.486181906399942E-12
node -4.76979132041342E-15 1.277947599535084E-14 1.416104617025967E-12 8.590340529838088E-9 -8.582485758315224E-9 4.810730503055735E-11
peri -4.586833345073356E-14 1.882733191524603E-13 1.201018824671183E-9 -8.582485758315224E-9 8.845325743038944E-9 -4.834956662257098E-11
i 3.734352469308252E-16 -7.147793377283029E-16 -1.486181906399942E-12 4.810730503055735E-11 -4.834956662257098E-11 2.6696260671144E-11

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 15.85   n/a MPCxxxxx  
diameter diameter 3.812 km 0.046 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.064   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

43971 Gabzdyl           Discovered 1997 Apr. 8 by M. Tichy and Z. Moravec at Klet.
Pavel Gabzdyl (b. 1974) is a Czech planetary astronomer who specializes in studying the moon. He is the author of a series of popular books, scientific and popular articles, as well as of educational performances at the Nicholas Copernicus Observatory and Planetarium in Brno.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20070601/MPCPages.arcLast Updated: 2007-06-06

[ 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
1917-Nov-07 02:38 00:02 Jupiter 1.95128027806694 1.95127996056748 1.9512805955664 2.07033926449679 1.8488195242461 2421539.609770262 2.15770839356141 84.35565393351 16.9178187473703 78.8882767799296 2584034.8906053 T 25 CATAB v2.0f-lin.ifort 2021-Apr-13 09:24:45 2021-Apr-13 09:24
1965-Mar-15 18:02 00:01 Jupiter 1.95339908409875 1.95339876134399 1.9533994068534 2.10808539665677 1.89124157299207 2438835.251710491 1.11943823812944 57.3161512452771 14.8539398907962 82.5426859597286 2525787.62725858 T 25 CATAB v2.0f-lin.ifort 2021-Apr-13 09:24:45 2021-Apr-13 09:24
2012-Jul-22 05:36 < 00:01 Jupiter 1.95503012782222 1.95502979097044 1.9550304646739 2.15008441374046 1.93813238625661 2456130.733004544 0.157785288920715 38.1287648605117 12.4849530217583 88.9117053924601 2573456.51779926 T 25 CATAB v2.0f-lin.ifort 2021-Apr-13 09:24:45 2021-Apr-13 09:24
2059-Nov-27 19:59 < 00:01 Jupiter 1.9636319105478 1.9636315384008 1.9636322826947 2.2145831187807 2.0103900915909 2473425.332323612 0.972981294833417 53.6993911941202 10.833381918104 86.4382651140143 2449636.75855598 T 25 CATAB v2.0f-lin.ifort 2021-Apr-13 09:24:45 2021-Apr-13 09:24
2107-Apr-05 16:04 00:02 Jupiter 1.97882222929091 1.97882170960603 1.97882274897625 2.30431663129527 2.11039987052013 2490720.169196865 2.00546981767978 94.8393303557051 8.85096220472563 87.2386535539341 2370416.89464833 T 25 CATAB v2.0f-lin.ifort 2021-Apr-13 09:24:45 2021-Apr-13 09:24
2154-Aug-12 02:47 00:03 Jupiter 1.99474832646589 1.99474754188254 1.99474911105152 2.39935793177602 2.21532525268467 2508015.615709499 3.0394709394832 144.750728179053 7.77314233405272 89.5165198802026 2365904.92790123 T 25 CATAB v2.0f-lin.ifort 2021-Apr-13 09:24:45 2021-Apr-13 09:24

Alternate Designations
 1997 GB4 = 2001 DR68 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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