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Minor planet follow-up portal
v. 3.17.1
2026 AC4
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Name
P12kfC0 → 2026 AC4
Type
NEO
Status
Actively Following
Characterization Target
Source
NASA
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,V45,V47; (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: 2026-Apr-11 06:10
Orbital Elements
MPC Minor Planet
Epoch of elements (MJD)
61117.0
March 18, 2026
Orbital inclination in deg
0.07558
Longitude of Ascending Node (deg)
293.71546
Arg of perihelion (deg)
299.64382
Eccentricity
0.0417791
Mean distance (AU)
1.0191444
Mean Anomaly (deg)
305.75269
Absolute Magnitude (H)
26.09
Slope Parameter (G)
0.15
Albedo (average)
0.17
Albedo (range)
0.01 - 0.60
Diameter in meters (average)
22
Diameter in meters
(range)
10 - 80
Physical Parameters
Absolute Magnitude
autocmod 3.0g
E2026E71
26.09
+/- 0.38337
Diameter
Initial Diameter Guess using H=26.09 and albedo=0.14 (0.01 to 0.5)
MPC Default
21.5 m
+59.0 / -10.0
Follow-up Details
NEOCP
digest2
score
79
Number of observations
126
Arc length (days)
63.00
Time since last observation (days)
0.80
Spectroscopy Details
Known Taxonomies
None
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