Schedule Observations Schedule Spectroscopic Observations
NameP12hxMW → P/2025 W4
Type Comet
Status Not Following
Source Minor Planet Center
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Measurements
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Last Update: 2025-Dec-16 06:10
Orbital Elements
MPC Comet
Epoch of elements (MJD)
61075.0 Feb. 4, 2026
Orbital inclination in deg 1.29798
Longitude of Ascending Node (deg) 237.11725
Arg of perihelion (deg) 172.30875
Eccentricity 0.2112428
Perihelion distance (AU) 2.0343373
Epoch of perihelion Oct. 4, 2025, 1:14 p.m.
Epoch of perihelion (MJD) 60952.55141
Total Magnitude (M1) 18.6
Slope Parameter (k1) 10.0
Physical Parameters
Diameter Initial Diameter Guess using H=18.6 and albedo=0.14 (0.01 to 0.5)

MPC Default
676.8 m +1856.0 / -319.0
Follow-up Details
NEOCP digest2 score 35
Number of observations 72
Arc length (days) 101.64
Time since last observation (days) 1.72
Spectroscopy Details
Known Taxonomies None