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Minor planet follow-up portal
v. 3.16.4
2025 XY
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Name
ST25L17 → 2025 XY
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-Dec-09 21:21
Orbital Elements
MPC Minor Planet
Epoch of elements (MJD)
61018.0
Dec. 9, 2025
Orbital inclination in deg
4.93741
Longitude of Ascending Node (deg)
254.74857
Arg of perihelion (deg)
25.94888
Eccentricity
0.3409127
Mean distance (AU)
0.7853136
Mean Anomaly (deg)
135.48452
Absolute Magnitude (H)
27.3
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 - 46
Physical Parameters
Diameter
Initial Diameter Guess using H=27.3 and albedo=0.14 (0.01 to 0.5)
MPC Default
12.32 m
+34.0 / -6.0
Follow-up Details
NEOCP
digest2
score
86
Number of observations
22
Arc length (days)
0.61
Time since last observation (days)
0.03
Spectroscopy Details
Known Taxonomies
None
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