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v. 3.14.2
2021 RQ9
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Name
P21kU5n → 2021 RQ9
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-Sep-12 07:33
Orbital Elements
MPC Minor Planet
Epoch of elements (MJD)
59468.0
Sept. 11, 2021
Orbital inclination in deg
7.94344
Longitude of Ascending Node (deg)
175.03852
Arg of perihelion (deg)
257.43647
Eccentricity
0.463101
Mean distance (AU)
1.3981398
Mean Anomaly (deg)
324.79345
Absolute Magnitude (H)
26.4
Slope Parameter (G)
0.15
Albedo (average)
0.17
Albedo (range)
0.01 - 0.60
Diameter in meters (average)
19
Diameter in meters
(range)
9 - 70
Physical Parameters
Diameter
Initial Diameter Guess using H=26.4 and albedo=0.14 (0.01 to 0.5)
MPC Default
18.64 m
+51.0 / -9.0
Follow-up Details
NEOCP
digest2
score
74
Number of observations
23
Arc length (days)
4.91
Time since last observation (days)
0.39
Spectroscopy Details
Known Taxonomies
None
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