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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-Mar-12 19:12
Orbital Elements
MPC Minor Planet
Epoch of elements (MJD)
61109.0
March 10, 2026
Orbital inclination in deg
0.07594
Longitude of Ascending Node (deg)
294.14658
Arg of perihelion (deg)
300.05123
Eccentricity
0.0413925
Mean distance (AU)
1.0183938
Mean Anomaly (deg)
297.24127
Absolute Magnitude (H)
26.1
Slope Parameter (G)
0.15
Albedo (average)
0.17
Albedo (range)
0.01 - 0.60
Diameter in meters (average)
21
Diameter in meters
(range)
10 - 80
Physical Parameters
Absolute Magnitude
autocmod 3.0g
26
26.095
+/- 0.38337
Diameter
Initial Diameter Guess using H=26.1 and albedo=0.14 (0.01 to 0.5)
MPC Default
21.4 m
+59.0 / -10.0
Follow-up Details
NEOCP
digest2
score
79
Number of observations
123
Arc length (days)
53.00
Time since last observation (days)
2.80
Spectroscopy Details
Known Taxonomies
None
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