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Minor planet follow-up portal
v. 3.14.2
2021 HW34
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Name
P21C4uE → 2021 HW34
Type
Asteroid
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)
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Measurements
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Last Update: 2022-Nov-24 13:20
Orbital Elements
MPC Minor Planet
Epoch of elements (MJD)
59907.0
Nov. 24, 2022
Orbital inclination in deg
33.3445
Longitude of Ascending Node (deg)
72.82482
Arg of perihelion (deg)
51.45727
Eccentricity
0.8046776
Mean distance (AU)
6.8006877
Mean Anomaly (deg)
354.3954
Absolute Magnitude (H)
19.1
Slope Parameter (G)
0.15
Albedo (average)
0.17
Albedo (range)
0.01 - 0.60
Diameter in meters (average)
538
Diameter in meters
(range)
260 - 2012
Physical Parameters
Phase Slope
MPC Default
0.15
Diameter
Initial Diameter Guess using H=19.1 and albedo=0.14 (0.01 to 0.5)
MPC Default
537.6 m
+1474.0 / -253.0
Absolute Magnitude
MPC Default
19.1
Follow-up Details
NEOCP
digest2
score
80
Number of observations
4
Arc length (days)
0.04
Time since last observation (days)
0.10
Spectroscopy Details
Known Taxonomies
None
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