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Minor planet follow-up portal
v. 3.14.2
2021 LD4
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Name
C5QNVX2 → 2021 LD4
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-10 10:00
Orbital Elements
MPC Minor Planet
Epoch of elements (MJD)
59374.0
June 9, 2021
Orbital inclination in deg
11.201
Longitude of Ascending Node (deg)
159.79072
Arg of perihelion (deg)
128.72951
Eccentricity
0.7801589
Mean distance (AU)
7.8992351
Mean Anomaly (deg)
359.65401
Absolute Magnitude (H)
19.4
Slope Parameter (G)
0.15
Albedo (average)
0.17
Albedo (range)
0.01 - 0.60
Diameter in meters (average)
468
Diameter in meters
(range)
226 - 1752
Physical Parameters
Diameter
Initial Diameter Guess using H=19.4 and albedo=0.14 (0.01 to 0.5)
MPC Default
468.23 m
+1284.0 / -220.0
Follow-up Details
NEOCP
digest2
score
49
Number of observations
13
Arc length (days)
2.03
Time since last observation (days)
0.59
Spectroscopy Details
Known Taxonomies
None
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