Schedule Observations Schedule Spectroscopic Observations
NameP21lhTi → C/2021 S3
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-Apr-28 07:04
Orbital Elements
MPC Comet
Epoch of elements (MJD)
60800.0 May 5, 2025
Orbital inclination in deg 58.53783
Longitude of Ascending Node (deg) 215.61003
Arg of perihelion (deg) 6.83829
Eccentricity 1.0000355
Perihelion distance (AU) 1.3198354
Epoch of perihelion Feb. 14, 2024, 4:15 p.m.
Epoch of perihelion (MJD) 60354.67733
Total Magnitude (M1) 10.7
Slope Parameter (k1) 4.5
Physical Parameters
Reciprocal of semimajor axis MPC182879
0.000007 au +/- 0.0000002
+/- 0.0000002
K1 autocmod 3.0f

121
4.5
M1 2 parameter fit from 3863 observations, autocmod 3.0f

121
10.7 +/- 1.0
PC autocmod 3.0f

97
0.03
K2 autocmod 3.0f

97
5.0
M2 from 304 observations, autocmod 3.0f

97
12.6 +/- 0.7
Diameter Initial Diameter Guess using H=10.0 and albedo=0.14 (0.01 to 0.5)

MPC Default
35519.02 m +97381.0 / -16724.0
Follow-up Details
NEOCP digest2 score 35
Number of observations 4606
Arc length (days) 1517.00
Time since last observation (days) 76.84
Spectroscopy Details
Known Taxonomies None