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v. 3.17.1
C/1991 A2
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Type
Comet
Status
Not Following
Source
NEODSYS
UTC date
------------ Any 1.0m ------------
LSC 1.0m - W85-87; (CTIO, Chile)
ELP 1.0m - V37,V39; (McDonald, Texas)
COJ 1.0m - Q63-64; (Siding Spring, Aust.)
CPT 1.0m - K91-93; (Sutherland, S. Africa)
TFN 1.0m - Z31,Z24; (Tenerife, Spain)
------------ Any 0.4m ------------
LSC 0.4m - W89,W79; (CTIO, Chile)
ELP 0.4m - V38,V45,V47; (McDonald, Texas)
OGG 0.4m - T03-04; (Maui, Hawaii)
COJ 0.4m - Q58-59; (Siding Spring, Aust.)
CPT 0.4m - L09; (Sutherland, S. Africa)
TFN 0.4m - Z17,Z21; (Tenerife, Spain)
------------ Any 2.0m ------------
FTS 2.0m - E10; (Siding Spring, Aust.) [MuSCAT4]
FTN 2.0m - F65; (Maui, Hawaii ) [MuSCAT3]
------------ Non LCO ------------
Mt John 1.8m - 474 (Mt John, NZ)
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Last Update: 2026-May-22 17:24
Orbital Elements
MPC Comet
Epoch of elements (MJD)
48277.0
Jan. 21, 1991
Orbital inclination in deg
70.98028030443429
Longitude of Ascending Node (deg)
115.522769006283
Arg of perihelion (deg)
337.6400991636339
Eccentricity
0.9906638424740422
Perihelion distance (AU)
1.4341921
Epoch of perihelion
Dec. 10, 1990, 9:20 p.m.
Epoch of perihelion (MJD)
48235.88905
Total Magnitude (M1)
6.4
Slope Parameter (k1)
80.0
Physical Parameters
Follow-up Details
Number of observations
110
Arc length (days)
80.00
Spectroscopy Details
Known Taxonomies
None
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