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v. 3.14.2
2021 JN4
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Name
P11g3ys → 2021 JN4
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)
Site
Min Altitude
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Measurements
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Last Update: 2021-May-11 20:44
Orbital Elements
MPC Minor Planet
Epoch of elements (MJD)
59314.0
April 10, 2021
Orbital inclination in deg
4.59193
Longitude of Ascending Node (deg)
73.476
Arg of perihelion (deg)
250.59199
Eccentricity
0.2041304
Mean distance (AU)
2.1767135
Mean Anomaly (deg)
258.36737
Absolute Magnitude (H)
19.0
Slope Parameter (G)
0.15
Albedo (average)
0.17
Albedo (range)
0.01 - 0.60
Diameter in meters (average)
563
Diameter in meters
(range)
272 - 2106
Physical Parameters
Diameter
Initial Diameter Guess using H=19.0 and albedo=0.14 (0.01 to 0.5)
MPC Default
562.94 m
+1543.0 / -265.0
Follow-up Details
NEOCP
digest2
score
23
Number of observations
14
Arc length (days)
30.77
Time since last observation (days)
0.71
Spectroscopy Details
Known Taxonomies
None
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