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: 2023-Dec-08 07:18
Orbital Elements
MPC Comet
Epoch of elements (MJD)
60280.0 Dec. 2, 2023
Orbital inclination in deg 158.01493
Longitude of Ascending Node (deg) 314.83434
Arg of perihelion (deg) 211.4787
Eccentricity 1.0013622
Perihelion distance (AU) 7.7594765
Epoch of perihelion Dec. 1, 2023, 10:59 p.m.
Epoch of perihelion (MJD) 60279.95813
Total Magnitude (M1) 6.7
Slope Parameter (k1) 9.0
Physical Parameters
Reciprocal of semimajor axis E2021-L04
0.000018 au +/- 0.0000335
+/- 0.0000335
K1 autocmod 3.0f

35
9.0
M1 from 239 observations, assumed slope, autocmod 3.0f

35
6.7 +/- 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 78
Arc length (days) 145.00
Time since last observation (days) 927.30
Spectroscopy Details
Known Taxonomies None