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Minor planet follow-up portal
v. 3.14.2
2021 TM20
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Name
C66WGA2 → 2021 TM20
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-Oct-16 09:31
Orbital Elements
MPC Minor Planet
Epoch of elements (MJD)
59502.0
Oct. 15, 2021
Orbital inclination in deg
5.49226
Longitude of Ascending Node (deg)
27.56348
Arg of perihelion (deg)
21.64955
Eccentricity
0.4900467
Mean distance (AU)
2.8216698
Mean Anomaly (deg)
359.88244
Absolute Magnitude (H)
19.8
Slope Parameter (G)
0.15
Albedo (average)
0.17
Albedo (range)
0.01 - 0.60
Diameter in meters (average)
389
Diameter in meters
(range)
188 - 1457
Physical Parameters
Diameter
Initial Diameter Guess using H=19.8 and albedo=0.14 (0.01 to 0.5)
MPC Default
389.46 m
+1068.0 / -183.0
Follow-up Details
NEOCP
digest2
score
76
Number of observations
17
Arc length (days)
2.95
Time since last observation (days)
0.17
Spectroscopy Details
Known Taxonomies
None
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