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Table 1

Analyzed sample of small-perihelion Oort spike comets.

Comet Solution, Table Comet Solution, Table Comet Solution, Table
orb. qual. orb. qual. orb. qual.
A. Comets discovered before 1900
C/1885 X1 NG, 2a A.4 C/1886 T1 GR, 2a A.1 C/1890 F1 GR, 1a A.1
B. Complete sample of small-perihelion Oort spike comets discovered in the years 1901–1950
taken from Królikowska et al. (2014)
C/1902 R1 GR, 1b A.1 C/1902 X1 GR, 1b A.1 C/1903 M1 GR, 2a A.1
C. Comets discovered in the period 1951–2012; in the beginning objects with pure GR orbits are listed
C/1966 T1 GR, 2a A.1 C/1973 A1 GR, 1b A.1 C/1975 E1 GR, 2a A.1
C/1952 W1 NG, 2a A.4 C/1956 R1 NG, 1b A.3 C/1959 Y1 NG, 2b A.3

Notes. Comets for which new orbital solutions are presented here are shown in bold. Purely gravitational orbit solutions are marked by “GR” and non-gravitational ones are marked as “NG”, where “NG (CO)” indicates solutions based on CO sublimation. An orbit quality assessment for each comet is presented according to the modified method described in KD13. The full table is available at the CDS.

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