Schedule Observations Schedule Spectroscopic Observations
NameP22ex9m → C/2025 R3
Type Comet (Hyperbolic)
Status Actively Following
Source Minor Planet Center
Check Spectroscopic Feasibility Create LC Plot
Recent Blocks Scheduled
Measurements
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Last Measurement: 2026-May-05 11:05
Orbital Elements
MPC Comet
Epoch of elements (MJD)
61000.0 Nov. 21, 2025
Orbital inclination in deg 124.72993
Longitude of Ascending Node (deg) 38.69259
Arg of perihelion (deg) 162.22597
Eccentricity 1.0003411
Perihelion distance (AU) 0.4986053
Epoch of perihelion April 19, 2026, 9:28 p.m.
Epoch of perihelion (MJD) 61149.89507
Total Magnitude (M1) 12.0
Slope Parameter (k1) 10.75
Physical Parameters
Reciprocal of semimajor axis E2026-J11
0.000366 au +/- 0.0000013
+/- 0.0000013
PC autocmod 3.0g

27
0.03
K2 autocmod 3.0g

27
5.0
M2 from 4 observations, autocmod 3.0g

27
15.6 +/- 0.2
K1 autocmod 3.0g

27
10.75
M1 2 parameter fit from 684 observations, autocmod 3.0g

27
12.0 +/- 0.7
Diameter Initial Diameter Guess using H=14.3 and albedo=0.14 (0.01 to 0.5)

MPC Default
4902.99 m +13442.0 / -2309.0
Follow-up Details
NEOCP digest2 score 35
Number of observations 789
Arc length (days) 240.00
Time since last observation (days) 0.91
Spectroscopy Details
Known Taxonomies None