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23032 Fossey (1999 XB8)
Classification: Main-belt Asteroid          SPK-ID: 2023032
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07244885675260904 4.9155e-08  
a 2.753908634945351 1.4259e-08 au
q 2.554391102742422 1.3842e-07 au
i 7.181304835449204 3.7588e-06 deg
node 103.4764396133098 4.0103e-05 deg
peri 276.2595617046858 4.6806e-05 deg
M 263.1203770924682 2.5313e-05 deg
tp 2459649.713353175834
(2022-Mar-11.21335318)
0.00011792 TDB
period 1669.255125999543
4.57
1.2965e-05
3.55e-08
d
yr
n .2156650558640241 1.675e-09 deg/d
Q 2.95342616714828 1.5292e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1022  
   data-arc span      8974 days (24.57 yr)  
   first obs. used      1995-12-20  
   last obs. used      2020-07-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57662  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 19:13:55  

Additional Information
 Earth MOID = 1.56783 au 
 Jupiter MOID = 2.41141 au 
 T_jup = 3.329 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457426.5 (2016-Feb-08.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07253995564508553 4.9295e-08  
q 2.552772091914012 1.385e-07 au
tp 2457986.999761061260
(2017-Aug-21.49976106)
0.00011506 TDB
node 103.4838808638366 4.011e-05 deg
peri 277.5294427255161 4.6668e-05 deg
i 7.1816495864703 3.7601e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1022  
   data-arc span      8974 days (24.57 yr)  
   first obs. used      1995-12-20  
   last obs. used      2020-07-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57662  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 19:13:55  

Additional Information
 Jupiter MOID = 2.41141 au 
 T_jup = 3.329 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.429986578799945E-15 -6.796325720064931E-15 1.717519206122204E-12 -9.644111329427399E-16 3.449031773701723E-13 -6.657545609695849E-16
q -6.796325720064931E-15 1.918203164506718E-14 -4.640093359364778E-12 1.948063973263745E-15 -9.419384694741175E-13 2.13538714564963E-15
tp 1.717519206122204E-12 -4.640093359364778E-12 1.323851317863885E-8 1.470202967549626E-11 2.783239464575713E-9 -2.723231018257375E-12
node -9.644111329427399E-16 1.948063973263745E-15 1.470202967549626E-11 1.608785013722027E-9 -1.593007715845746E-9 -5.513484440847867E-11
peri 3.449031773701723E-13 -9.419384694741175E-13 2.783239464575713E-9 -1.593007715845746E-9 2.177911220413766E-9 5.412891753973047E-11
i -6.657545609695849E-16 2.13538714564963E-15 -2.723231018257375E-12 -5.513484440847867E-11 5.412891753973047E-11 1.413804872290671E-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 14.69   n/a E2021B10  
diameter diameter 3.301 km 1.066 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.195   0.089 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

23032 Fossey           Discovered 1999 Dec. 3 by J. Broughton at Reedy Creek Observatory.
American occupational therapist Dian Fossey (1932-1985) spent many years in Africa studying the behavior of the mountain gorilla, the largest and rarest of the great apes. Her campaign for their protection was largely responsible for bringing the species back from the brink of extinction.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20011230/MPCPages.arcLast Updated: 2009-05-11

[ 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
1935-Dec-29 05:09 00:02 Psych 0.0477793379179958 0.047772004583661 0.0477866757219489 2.14656569437531 2.14656557640605 2428165.714621393 1.56155453768789 818.060588274877 44.5388090768815 63.6662915883534 143433.292512902 T 23 CATAB v2.0f-lin.ifort 2021-Feb-24 19:13:58 2021-Feb-24 19:13
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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