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Minor planet follow-up portal
v. 3.8.4
C/2021 C1
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Name
C4WH682 → C/2021 C1
Type
Comet
Status
Not Following
Source
Minor Planet Center
UTC date
------------ Any 1.0m ------------
LSC 1.0m - W85-87; (CTIO, Chile)
ELP 1.0m - V37,V39; (McDonald, Texas)
COJ 1.0m - Q63-64; (Siding Spring, Aust.)
CPT 1.0m - K91-93; (Sutherland, S. Africa)
------------ Any 0.4m ------------
LSC 0.4m - W89,W79; (CTIO, Chile)
ELP 0.4m - V38; (McDonald, Texas)
OGG 0.4m - T03-04; (Maui, Hawaii)
COJ 0.4m - Q58-59; (Siding Spring, Aust.)
CPT 0.4m - L09; (Sutherland, S. Africa)
TFN 0.4m - Z17,Z21; (Tenerife, Spain)
------------ Any 2.0m ------------
FTS 2.0m - E10; (Siding Spring, Aust.)
FTN 2.0m - F65; (Maui, Hawaii ) [MuSCAT3]
------------ Non LCO ------------
Mt John 1.8m - 474 (Mt John, NZ)
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Min Altitude
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Measurements
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Last Update: 2021-Feb-24 11:11
Orbital Elements
MPC Comet
Epoch of elements (MJD)
59264.0
Feb. 19, 2021
Orbital inclination in deg
143.02284
Longitude of Ascending Node (deg)
186.89232
Arg of perihelion (deg)
336.15938
Eccentricity
0.9966274
Perihelion distance (AU)
3.4792046
Epoch of perihelion
Dec. 6, 2020, 8:50 a.m.
Epoch of perihelion (MJD)
59189.36860
Total Magnitude (M1)
14.1
Slope Parameter (k1)
10.0
Physical Parameters
Diameter
Initial Diameter Guess using H=14.1 and albedo=0.14 (0.01 to 0.5)
MPC Default
5376.02 m
+14739.0 / -2531.0
Follow-up Details
NEOCP
digest2
score
35
Number of observations
78
Arc length (days)
13.02
Time since last observation (days)
0.51
Spectroscopy Details
Known Taxonomies
None
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