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v. 3.14.2
Wierzchos (P/2021 U1)
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Name
C69C5G2 → P/2021 U1
Type
Comet (Jupiter Family)
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: 2021-Dec-09 00:00
Orbital Elements
MPC Comet
Epoch of elements (MJD)
59600.0
Jan. 21, 2022
Orbital inclination in deg
30.56051
Longitude of Ascending Node (deg)
246.78947
Arg of perihelion (deg)
145.04806
Eccentricity
0.7127437
Perihelion distance (AU)
2.4450193
Epoch of perihelion
Sept. 30, 2021, 11:40 p.m.
Epoch of perihelion (MJD)
59487.98614
Total Magnitude (M1)
16.0
Slope Parameter (k1)
4.5
Physical Parameters
K1
autocmod 3.0a
8
4.5
M1
2 parameter fit from 218 observations, autocmod 3.0a
8
16.0
+/- 0.8
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
172
Arc length (days)
80.00
Time since last observation (days)
80.05
Spectroscopy Details
Known Taxonomies
None
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