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Minor planet follow-up portal
v. 3.14.2
Attard-Maury (P/2021 U3)
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Schedule Spectroscopic Observations
Name
1AN2E11 → P/2021 U3
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)
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-13 00:00
Orbital Elements
MPC Comet
Epoch of elements (MJD)
59600.0
Jan. 21, 2022
Orbital inclination in deg
69.96525
Longitude of Ascending Node (deg)
75.11279
Arg of perihelion (deg)
335.21465
Eccentricity
0.5500164
Perihelion distance (AU)
1.8868763
Epoch of perihelion
Oct. 24, 2021, 8:51 p.m.
Epoch of perihelion (MJD)
59511.86928
Total Magnitude (M1)
16.8
Slope Parameter (k1)
4.5
Physical Parameters
Phase Slope
MPC Default
1.8
K1
autocmod 3.0a
6
4.5
M1
2 parameter fit from 255 observations, autocmod 3.0a
6
16.8
+/- 0.6
Diameter
Initial Diameter Guess using H=15.9 and albedo=0.14 (0.01 to 0.5)
MPC Default
2346.72 m
+6434.0 / -1105.0
Follow-up Details
NEOCP
digest2
score
35
Number of observations
207
Arc length (days)
50.00
Time since last observation (days)
76.05
Spectroscopy Details
Known Taxonomies
None
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