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v. 3.17.1
C/2026 S1
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Name
ec0001 → C/2026 S1
Type
Comet
Status
Not Following
Source
Minor Planet Center
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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Measurements
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Last Update: 2026-Oct-08 13:34
Orbital Elements
MPC Comet
Epoch of elements (MJD)
61321.0
Oct. 8, 2026
Orbital inclination in deg
85.25265
Longitude of Ascending Node (deg)
304.31327
Arg of perihelion (deg)
101.52645
Eccentricity
0.9907996
Perihelion distance (AU)
8.7788824
Epoch of perihelion
Aug. 29, 2027, 11:09 p.m.
Epoch of perihelion (MJD)
61646.96518
Total Magnitude (M1)
10.7
Slope Parameter (k1)
10.0
Physical Parameters
Diameter
Initial Diameter Guess using H=10.7 and albedo=0.14 (0.01 to 0.5)
MPC Default
25731.25 m
+70546.0 / -12116.0
Follow-up Details
NEOCP
digest2
score
35
Number of observations
53
Arc length (days)
21.64
Time since last observation (days)
0.43
Spectroscopy Details
Known Taxonomies
None
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