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Minor planet follow-up portal
v. 3.15.3
2021 LL4
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Name
P11gPAo → 2021 LL4
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-Jun-11 09:25
Orbital Elements
MPC Minor Planet
Epoch of elements (MJD)
59373.0
June 8, 2021
Orbital inclination in deg
4.52837
Longitude of Ascending Node (deg)
319.05345
Arg of perihelion (deg)
11.5827
Eccentricity
0.2767785
Mean distance (AU)
2.2675008
Mean Anomaly (deg)
297.59623
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
63
Number of observations
14
Arc length (days)
3.07
Time since last observation (days)
0.11
Spectroscopy Details
Known Taxonomies
None
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