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Minor planet follow-up portal
v. 3.14.2
2021 GR18
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Name
C5EH5C2 → 2021 GR18
Type
NEO
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: 2021-Apr-18 00:18
Orbital Elements
MPC Minor Planet
Epoch of elements (MJD)
59319.0
April 15, 2021
Orbital inclination in deg
12.15636
Longitude of Ascending Node (deg)
160.62006
Arg of perihelion (deg)
110.39564
Eccentricity
0.3878158
Mean distance (AU)
1.6020157
Mean Anomaly (deg)
329.95301
Absolute Magnitude (H)
23.2
Slope Parameter (G)
0.15
Albedo (average)
0.17
Albedo (range)
0.01 - 0.60
Diameter in meters (average)
81
Diameter in meters
(range)
39 - 304
Physical Parameters
Diameter
Initial Diameter Guess using H=23.2 and albedo=0.14 (0.01 to 0.5)
MPC Default
81.37 m
+223.0 / -38.0
Follow-up Details
NEOCP
digest2
score
100
Number of observations
11
Arc length (days)
11.94
Time since last observation (days)
0.68
Spectroscopy Details
Known Taxonomies
None
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