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v. 3.14.2
Rankin (C/2021 C1)
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Name
C4WH682 → C/2021 C1
Type
Comet (Long Period)
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)
TFN 1.0m - Z31,Z24; (Tenerife, Spain)
------------ 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.) [MuSCAT4]
FTN 2.0m - F65; (Maui, Hawaii ) [MuSCAT3]
------------ Non LCO ------------
Mt John 1.8m - 474 (Mt John, NZ)
Site
Min Altitude
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Measurements
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Last Update: 2022-Jan-05 00:00
Orbital Elements
MPC Comet
Epoch of elements (MJD)
59600.0
Jan. 21, 2022
Orbital inclination in deg
143.04352
Longitude of Ascending Node (deg)
186.89537
Arg of perihelion (deg)
336.30009
Eccentricity
0.9999338
Perihelion distance (AU)
3.4808503
Epoch of perihelion
Dec. 7, 2020, 2:30 a.m.
Epoch of perihelion (MJD)
59190.10470
Total Magnitude (M1)
11.2
Slope Parameter (k1)
11.0
Physical Parameters
Reciprocal of semimajor axis
E2022-C56
0.000211 au
+/- 0.0000001
+/- 0.0000001
K1
autocmod 3.0a
9
11.0
M1
2 parameter fit from 148 observations, autocmod 3.0a
9
11.2
+/- 0.5
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
157
Arc length (days)
328.00
Time since last observation (days)
53.07
Spectroscopy Details
Known Taxonomies
None
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