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v. 3.14.2
Rankin (C/2020 U3)
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Name
C3N9802 → C/2020 U3
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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Recent Blocks Scheduled
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Measurements
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Last Update: 2021-Oct-31 00:00
Orbital Elements
MPC Comet
Epoch of elements (MJD)
59600.0
Jan. 21, 2022
Orbital inclination in deg
30.17201
Longitude of Ascending Node (deg)
282.67711
Arg of perihelion (deg)
124.27707
Eccentricity
0.9652775
Perihelion distance (AU)
2.2762682
Epoch of perihelion
Feb. 6, 2021, 12:42 a.m.
Epoch of perihelion (MJD)
59251.02943
Total Magnitude (M1)
9.5
Slope Parameter (k1)
22.25
Physical Parameters
Reciprocal of semimajor axis
E2021-W31
0.015399 au
+/- 0.0000061
+/- 0.0000061
K1
autocmod 2.9e
9
22.25
M1
2 parameter fit from 175 observations, autocmod 2.9e
9
9.5
+/- 0.7
Diameter
Initial Diameter Guess using H=16.6 and albedo=0.14 (0.01 to 0.5)
MPC Default
1700.05 m
+4661.0 / -800.0
Follow-up Details
NEOCP
digest2
score
35
Number of observations
185
Arc length (days)
467.00
Time since last observation (days)
119.08
Spectroscopy Details
Known Taxonomies
None
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