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PANSTARRS (C/2021 J2)
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Name
P11g7TN → C/2021 J2
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-Feb-10 00:00
Orbital Elements
MPC Comet
Epoch of elements (MJD)
59600.0
Jan. 21, 2022
Orbital inclination in deg
156.20889
Longitude of Ascending Node (deg)
23.32935
Arg of perihelion (deg)
172.05828
Eccentricity
0.9598412
Perihelion distance (AU)
4.7065806
Epoch of perihelion
Sept. 22, 2021, 11:11 a.m.
Epoch of perihelion (MJD)
59479.46651
Total Magnitude (M1)
11.5
Slope Parameter (k1)
10.0
Physical Parameters
Reciprocal of semimajor axis
E2022-CN4
0.008958 au
+/- 0.0000053
+/- 0.0000053
K1
autocmod 3.0a
6
10.0
M1
from 67 observations, assumed slope, autocmod 3.0a
6
11.5
+/- 1.0
Diameter
Initial Diameter Guess using H=15.3 and albedo=0.14 (0.01 to 0.5)
MPC Default
3093.58 m
+8482.0 / -1457.0
Follow-up Details
NEOCP
digest2
score
35
Number of observations
69
Arc length (days)
327.00
Time since last observation (days)
17.07
Spectroscopy Details
Known Taxonomies
None
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