Schedule Observations Schedule Spectroscopic Observations
NameP11bX5O → C/2021 A9
Type Comet (Hyperbolic) [Dynamically New]
Status Actively Following
Characterization Target
Source LOOK Project
Check Spectroscopic Feasibility Create LC Plot
Recent Blocks Scheduled
Measurements
Show Measurements
Plot Visibility
Last Update: 2025-Jan-18 20:12
Orbital Elements
MPC Comet
Epoch of elements (MJD)
60600.0 Oct. 17, 2024
Orbital inclination in deg 158.0144
Longitude of Ascending Node (deg) 314.83796
Arg of perihelion (deg) 211.54666
Eccentricity 1.0009212
Perihelion distance (AU) 7.7611139
Epoch of perihelion Dec. 2, 2023, 11:42 p.m.
Epoch of perihelion (MJD) 60280.98817
Total Magnitude (M1) 6.6
Slope Parameter (k1) 9.25
Physical Parameters
Reciprocal of semimajor axis E2025-AE4
0.000021 au +/- 0.0000006
+/- 0.0000006
K1 autocmod 3.0f

52
9.25
M1 from 352 observations, assumed slope, autocmod 3.0f

52
6.6 +/- 0.7
Diameter Initial Diameter Guess using H=11.1 and albedo=0.14 (0.01 to 0.5)

MPC Default
21402.33 m +58678.0 / -10077.0
Follow-up Details
NEOCP digest2 score 35
Number of observations 383
Arc length (days) 1419.00
Time since last observation (days) 0.86
Spectroscopy Details
Known Taxonomies None