Schedule Observations Schedule Spectroscopic Observations
NameX74756 → C/2021 S4
Type Comet
Status Actively Following
Characterization Target
Source LOOK Project
Check Spectroscopic Feasibility Create LC Plot
Recent Blocks Scheduled
  • No blocks have been scheduled
Measurements
Show Measurements
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Last Update: 2025-Jan-18 20:02
Orbital Elements
MPC Comet
Epoch of elements (MJD)
60600.0 Oct. 17, 2024
Orbital inclination in deg 17.47821
Longitude of Ascending Node (deg) 5.46997
Arg of perihelion (deg) 72.97923
Eccentricity 0.9582214
Perihelion distance (AU) 6.6900537
Epoch of perihelion Jan. 3, 2024, 9:59 a.m.
Epoch of perihelion (MJD) 60312.41646
Total Magnitude (M1) 6.4
Slope Parameter (k1) 9.25
Physical Parameters
Reciprocal of semimajor axis E2025-AE4
0.00668 au +/- 0.0000009
+/- 0.0000009
PC autocmod 3.0f

69
0.03
K2 autocmod 3.0f

69
5.0
M2 from 6 observations, autocmod 3.0f

69
10.1 +/- 0.4
K1 autocmod 3.0f

69
9.25
M1 from 951 observations, assumed slope, autocmod 3.0f

69
6.4 +/- 0.7
Diameter Initial Diameter Guess using H=11.4 and albedo=0.14 (0.01 to 0.5)

MPC Default
18640.65 m +51106.0 / -8777.0
Follow-up Details
NEOCP digest2 score 35
Number of observations 850
Arc length (days) 1126.00
Time since last observation (days) 4.31
Spectroscopy Details
Known Taxonomies None