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Minor planet follow-up portal
v. 3.17.1
2023 BM4
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Name
3AP1B21 → 2023 BM4
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-Jun-10 20:02
Orbital Elements
MPC Minor Planet
Epoch of elements (MJD)
61202.0
June 11, 2026
Orbital inclination in deg
1.52138
Longitude of Ascending Node (deg)
186.48791
Arg of perihelion (deg)
174.30071
Eccentricity
0.2061866
Mean distance (AU)
0.9784225
Mean Anomaly (deg)
281.53053
Absolute Magnitude (H)
23.69
Slope Parameter (G)
0.15
Albedo (average)
0.17
Albedo (range)
0.01 - 0.60
Diameter in meters (average)
65
Diameter in meters
(range)
31 - 243
Physical Parameters
Diameter
Initial Diameter Guess using H=23.69 and albedo=0.14 (0.01 to 0.5)
MPC Default
64.93 m
+178.0 / -31.0
Absolute Magnitude
autocmod 3.0e
E2026L04
23.65
+/- 0.4469
Follow-up Details
NEOCP
digest2
score
79
Number of observations
378
Arc length (days)
1461.00
Time since last observation (days)
13.84
Spectroscopy Details
Known Taxonomies
None
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