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1794 Finsen (1970 GA)
Classification: Main-belt Asteroid          SPK-ID: 2001794
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1509892634825154 3.4078e-08  
a 3.131138979815045 1.3073e-08 au
q 2.658370611391377 1.0669e-07 au
i 14.57895413606439 4.3131e-06 deg
node 221.0618351678621 1.319e-05 deg
peri 341.2045530842999 1.8973e-05 deg
M 34.43794972632801 1.2469e-05 deg
tp 2458806.908301140060
(2019-Nov-19.40830114)
7.0468e-05 TDB
period 2023.727084318772
5.54
1.2674e-05
3.47e-08
d
yr
n .1778895992397035 1.1141e-09 deg/d
Q 3.603907348238713 1.5047e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2872  
   data-arc span      25505 days (69.83 yr)  
   first obs. used      1950-10-05  
   last obs. used      2020-08-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45089  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:40:54  

Additional Information
 Earth MOID = 1.65824 au 
 Jupiter MOID = 1.39673 au 
 T_jup = 3.146 
[ 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 11.0   n/a MPO473788 IRAS observations used: 5
diameter diameter 38.050 km 0.283 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 12.346 h n/a LCDB (Rev. 2019-August); 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Hills, K. (2016) Minor Planet Bull. 43, 5-6.]
geometric albedo albedo 0.046   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.695   0.022 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=5.97 deg.
U-B UB 0.312   0.034 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=5.97 deg.
Tholen spectral type spec_T C   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices

1794 Finsen (1970 GA)          Discovered 1970-Apr-07 by Bruwer, J. A. at Hartbeespoort
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
1929-May-01 16:59 00:01 Jupiter 1.53824627817963 1.53824520783976 1.5382473485251 3.95220220977528 3.81033055596655 2425733.207494936 1.31317652339167 190.043054125789 31.3672361890827 76.7870134393327 3426459.63779717 T 37 CATAB v2.0f-lin.ifort 2020-Aug-24 22:41:08 2020-Aug-24 22:41
1939-Aug-31 18:50 00:01 Jupiter 1.62305448407341 1.62305330498131 1.62305566316753 3.15663912217439 2.9867426556219 2429507.284660869 1.36780391432474 133.790268861775 46.8506124893227 -68.0668487754988 2239140.92266234 T 37 CATAB v2.0f-lin.ifort 2020-Aug-24 22:41:08 2020-Aug-24 22:41
2011-Oct-25 17:20 < 00:01 Jupiter 1.38454463942298 1.38454425848137 1.38454502036458 3.83811454950625 3.67526649545734 2455860.222350303 0.212563797959728 68.9225958684219 17.9803562823796 89.3913128722382 3080972.67831793 T 37 CATAB v2.0f-lin.ifort 2020-Aug-24 22:41:08 2020-Aug-24 22:41
2021-Dec-01 20:49 < 00:01 Jupiter 1.93410057512061 1.93409987135078 1.93410127889045 2.15431034707655 1.94040471965531 2459550.367585222 0.483170802857913 107.323156487208 38.5714478451082 76.594651163704 2912991.22889907 T 37 CATAB v2.0f-lin.ifort 2020-Aug-24 22:41:08 2020-Aug-24 22:41
2083-Dec-16 08:24 00:01 Jupiter 1.72480554851406 1.72480418318279 1.72480691384553 3.9059801054323 3.77816288400978 2482209.849655455 1.21187834470891 106.361549488752 63.8484701028506 74.949504819788 2814644.39196921 T 37 CATAB v2.0f-lin.ifort 2020-Aug-24 22:41:08 2020-Aug-24 22:41
2094-Apr-27 13:26 00:01 Jupiter 1.45631416342724 1.45631326151146 1.45631506535139 3.6578975875101 3.49527871397937 2485995.059916287 1.30922139671213 210.83862774909 22.809121019934 -78.6738845811322 2831530.27736057 T 37 CATAB v2.0f-lin.ifort 2020-Aug-24 22:41:08 2020-Aug-24 22:41
2166-May-24 23:32 00:02 Jupiter 1.44547187163891 1.44547037914956 1.44547336416054 3.90848215166764 3.75556466305635 2512319.480664755 2.28168694273177 379.372118149643 26.5112753381303 79.5978173650159 3195219.65015213 T 37 CATAB v2.0f-lin.ifort 2020-Aug-24 22:41:08 2020-Aug-24 22:41
2176-Sep-14 18:42 00:03 Jupiter 1.73387016822186 1.73386729645067 1.73387303999502 3.1300833743225 2.96991428441903 2516085.279001352 3.28025980256825 174.972690073927 83.7617668190835 -19.7253719471631 2056144.73775055 T 37 CATAB v2.0f-lin.ifort 2020-Aug-24 22:41:08 2020-Aug-24 22:41

Alternate Designations
 1970 GA = 1937 JR = 1948 GK = 1950 TJ = 1950 TS2 = 1951 XL = 1951 YJ = 1962 WX = 1965 MC 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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