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v. 3.15.2
NEOWISE (C/2021 A2)
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Name
N00ht7m → C/2021 A2
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
Check Spectroscopic Feasibility
Create LC Plot
Recent Blocks Scheduled
2021-01-05T17:34:00
2021-01-06T17:34:00
SIN
Req: 2348193
2021-01-06T17:19:00
2021-01-07T17:19:00
SIN
Req: 2349068
Measurements
Show Measurements
Plot Visibility
Last Update: 2021-May-09 00:00
Orbital Elements
MPC Comet
Epoch of elements (MJD)
59400.0
July 5, 2021
Orbital inclination in deg
106.97786
Longitude of Ascending Node (deg)
125.23789
Arg of perihelion (deg)
338.8437
Eccentricity
0.9944704
Perihelion distance (AU)
1.4129120
Epoch of perihelion
Jan. 22, 2021, 3:04 p.m.
Epoch of perihelion (MJD)
59236.62788
Total Magnitude (M1)
14.9
Slope Parameter (k1)
4.5
Physical Parameters
K1
autocmod 3.0a
13
4.5
M1
2 parameter fit from 776 observations, autocmod 3.0a
13
15.0
+/- 0.8
Reciprocal of semimajor axis
E2021-U31
0.00428 au
+/- 0.0000188
+/- 0.0000188
Diameter
Initial Diameter Guess using H=13.2 and albedo=0.14 (0.01 to 0.5)
MPC Default
8136.94 m
+22309.0 / -3831.0
Follow-up Details
NEOCP
digest2
score
35
Number of observations
869
Arc length (days)
126.00
Time since last observation (days)
294.07
Spectroscopy Details
Known Taxonomies
None
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