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
Plot Visibility
Last Update: 2023-Jun-03 19:43
Orbital Elements
MPC Comet
Epoch of elements (MJD)
60000.0 Feb. 25, 2023
Orbital inclination in deg 17.48002
Longitude of Ascending Node (deg) 5.49677
Arg of perihelion (deg) 72.79493
Eccentricity 0.9594442
Perihelion distance (AU) 6.6905513
Epoch of perihelion Jan. 1, 2024, noon
Epoch of perihelion (MJD) 60310.50062
Total Magnitude (M1) 6.5
Slope Parameter (k1) 9.25
Physical Parameters
Reciprocal of semimajor axis E2023-E49
0.006686 au +/- 0.000007
+/- 0.000007
K1 autocmod 3.0e

32
9.25
M1 from 367 observations, assumed slope, autocmod 3.0e

32
6.5 +/- 0.6
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 384
Arc length (days) 526.00
Time since last observation (days) 6.82
Spectroscopy Details
Known Taxonomies None