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v. 3.17.1
C/1998 M4
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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 18:26
Orbital Elements
MPC Comet
Epoch of elements (MJD)
50997.0
July 3, 1998
Orbital inclination in deg
154.5710965247214
Longitude of Ascending Node (deg)
92.9226691500038
Arg of perihelion (deg)
106.2863013348337
Eccentricity
0.9973867690204228
Perihelion distance (AU)
2.6000174
Epoch of perihelion
Dec. 10, 1997, 2:48 a.m.
Epoch of perihelion (MJD)
50792.11681
Total Magnitude (M1)
9.5
Slope Parameter (k1)
25.0
Physical Parameters
Follow-up Details
Number of observations
116
Arc length (days)
71.00
Spectroscopy Details
Known Taxonomies
None
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