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Minor planet follow-up portal
v. 3.14.2
ATLAS (C/2018 A3)
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Name
A105UPd → C/2018 A3
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: 2020-Oct-24 00:00
Orbital Elements
MPC Comet
Epoch of elements (MJD)
59200.0
Dec. 17, 2020
Orbital inclination in deg
139.54503
Longitude of Ascending Node (deg)
194.29405
Arg of perihelion (deg)
86.39355
Eccentricity
0.9930172
Perihelion distance (AU)
3.2755973
Epoch of perihelion
Jan. 12, 2019, 2:58 p.m.
Epoch of perihelion (MJD)
58495.62408
Total Magnitude (M1)
9.4
Slope Parameter (k1)
9.0
Physical Parameters
Reciprocal of semimajor axis
E2021-F20
0.003521 au
+/- 0.0000003
+/- 0.0000003
PC
autocmod 2.9c
30
0.03
K2
autocmod 2.9c
30
5.0
M2
from 597 observations, autocmod 2.9c
30
11.9
+/- 0.4
K1
autocmod 2.9c
30
9.0
M1
2 parameter fit from 862 observations, autocmod 2.9c
30
9.4
+/- 0.6
Follow-up Details
NEOCP
digest2
score
10
Number of observations
1607
Arc length (days)
1018.00
Time since last observation (days)
491.11
Spectroscopy Details
Known Taxonomies
None
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