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Minor planet follow-up portal
v. 3.17.1a
164216 (2004 OT11)
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Type
NEO (Apollo) [PHA]
Status
Actively Following
Characterization Target
Source
Goldstone
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)
ELP 0.4m - V98; (TEMP; McDonald, Texas)
ELP 0.4m - V99; (TEMP; 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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Min Altitude
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Measurements
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Last Update: 2026-Jan-25 06:10
Orbital Elements
MPC Minor Planet
Epoch of elements (MJD)
61059.0
Jan. 19, 2026
Orbital inclination in deg
20.05635
Longitude of Ascending Node (deg)
294.79864
Arg of perihelion (deg)
326.8453
Eccentricity
0.5656341
Mean distance (AU)
2.1505951
Mean Anomaly (deg)
310.096
Absolute Magnitude (H)
17.23
Slope Parameter (G)
0.15
Albedo (average)
0.17
Albedo (range)
0.01 - 0.60
Diameter in meters (average)
1272
Diameter in meters
(range)
614 - 4759
Physical Parameters
Diameter
Initial Diameter Guess using H=17.23 and albedo=0.14 (0.01 to 0.5)
MPC Default
1271.92 m
+3487.0 / -599.0
Absolute Magnitude
E2025B01
17.28
Follow-up Details
Number of observations
237
Arc length (days)
7670.00
Time since last observation (days)
1.80
Spectroscopy Details
Known Taxonomies
None
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