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Minor planet follow-up portal
v. 3.15.2
2021 NH20
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Name
P21ZVtk → 2021 NH20
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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Ingest Time: 2024-Oct-03 10:20
Orbital Elements
MPC Comet
Epoch of elements (MJD)
60586.0
Oct. 3, 2024
Orbital inclination in deg
130.00066
Longitude of Ascending Node (deg)
31.09647
Arg of perihelion (deg)
158.20539
Eccentricity
0.9403962
Perihelion distance (AU)
1.3539898
Epoch of perihelion
Dec. 9, 2025, 11:16 a.m.
Epoch of perihelion (MJD)
61018.46985
Total Magnitude (M1)
15.1
Slope Parameter (k1)
10.0
Physical Parameters
Diameter
Initial Diameter Guess using H=15.1 and albedo=0.14 (0.01 to 0.5)
MPC Default
3392.04 m
+9300.0 / -1597.0
Follow-up Details
NEOCP
digest2
score
71
Number of observations
3
Arc length (days)
0.03
Time since last observation (days)
0.37
Spectroscopy Details
Known Taxonomies
None
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