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Minor planet follow-up portal
v. 3.15.3
2025 FH21
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Name
C44Q431 → 2025 FH21
Type
NEO
Status
Actively 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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Last Update: 2025-Apr-01 07:12
Orbital Elements
MPC Minor Planet
Epoch of elements (MJD)
60765.0
March 31, 2025
Orbital inclination in deg
19.903
Longitude of Ascending Node (deg)
11.44191
Arg of perihelion (deg)
167.27399
Eccentricity
0.0935653
Mean distance (AU)
1.1084859
Mean Anomaly (deg)
9.49113
Absolute Magnitude (H)
27.4
Slope Parameter (G)
0.15
Albedo (average)
0.17
Albedo (range)
0.01 - 0.60
Diameter in meters (average)
12
Diameter in meters
(range)
6 - 44
Physical Parameters
Diameter
Initial Diameter Guess using H=27.4 and albedo=0.14 (0.01 to 0.5)
MPC Default
11.76 m
+32.0 / -6.0
Follow-up Details
NEOCP
digest2
score
88
Number of observations
30
Arc length (days)
0.55
Time since last observation (days)
1.70
Spectroscopy Details
Known Taxonomies
None
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