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v. 3.17.1
C/1998 U1
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Type
Comet (Hyperbolic)
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 18:34
Orbital Elements
MPC Comet
Epoch of elements (MJD)
51129.0
Nov. 12, 1998
Orbital inclination in deg
156.4285052793357
Longitude of Ascending Node (deg)
210.4570991100919
Arg of perihelion (deg)
124.6456475589217
Eccentricity
1.000438480606483
Perihelion distance (AU)
3.9754447
Epoch of perihelion
May 2, 1998, noon
Epoch of perihelion (MJD)
50935.50012
Total Magnitude (M1)
9.5
Slope Parameter (k1)
25.0
Physical Parameters
Follow-up Details
Number of observations
122
Arc length (days)
87.00
Spectroscopy Details
Known Taxonomies
None
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