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v. 3.16.0
398P
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Name
H365057 → 398P
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; (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: 2025-Aug-24 02:55
Orbital Elements
MPC Comet
Epoch of elements (MJD)
60961.0
Oct. 13, 2025
Orbital inclination in deg
11.02784
Longitude of Ascending Node (deg)
127.40616
Arg of perihelion (deg)
320.30128
Eccentricity
0.5837547
Perihelion distance (AU)
1.3002831
Epoch of perihelion
July 7, 2026, 9:15 p.m.
Epoch of perihelion (MJD)
61228.88553
Total Magnitude (M1)
17.9
Slope Parameter (k1)
10.0
Physical Parameters
Diameter
Initial Diameter Guess using H=17.9 and albedo=0.14 (0.01 to 0.5)
MPC Default
934.25 m
+2561.0 / -440.0
Absolute Magnitude
MPC Default
17.9
Follow-up Details
NEOCP
digest2
score
35
Number of observations
54
Arc length (days)
4040.90
Time since last observation (days)
6.70
Spectroscopy Details
Known Taxonomies
None
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