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v. 3.14.2
2021 GY4
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Name
P11enbn → 2021 GY4
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-Apr-09 06:31
Orbital Elements
MPC Minor Planet
Epoch of elements (MJD)
59310.0
April 6, 2021
Orbital inclination in deg
21.36863
Longitude of Ascending Node (deg)
23.22054
Arg of perihelion (deg)
27.91489
Eccentricity
0.1328569
Mean distance (AU)
1.8632669
Mean Anomaly (deg)
145.73766
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
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
Follow-up Details
NEOCP
digest2
score
38
Number of observations
11
Arc length (days)
4.90
Time since last observation (days)
0.37
Spectroscopy Details
Known Taxonomies
None
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