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Minor planet follow-up portal
v. 3.17.0
173561 (2000 YV137)
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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)
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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Measurements
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Last Update: 2026-Jan-01 06:07
Orbital Elements
MPC Minor Planet
Epoch of elements (MJD)
61042.0
Jan. 2, 2026
Orbital inclination in deg
28.0019
Longitude of Ascending Node (deg)
137.2184
Arg of perihelion (deg)
211.37856
Eccentricity
0.3110752
Mean distance (AU)
1.4479463
Mean Anomaly (deg)
220.32012
Absolute Magnitude (H)
18.39
Slope Parameter (G)
0.15
Albedo (average)
0.17
Albedo (range)
0.01 - 0.60
Diameter in meters (average)
746
Diameter in meters
(range)
360 - 2789
Physical Parameters
Diameter
Initial Diameter Guess using H=18.39 and albedo=0.14 (0.01 to 0.5)
MPC Default
745.52 m
+2044.0 / -351.0
Rotation Period
REFERENCE LIST:[Warner, B.D.; Stephens, R.D. (2020) Minor Planet Bull. 47, 23-34.]
LCDB (Rev. 2023-October); Warner et al., 2009
2.722 h
Absolute Magnitude
E2024-KD4
18.36
Follow-up Details
Number of observations
637
Arc length (days)
7671.00
Time since last observation (days)
2146.26
Spectroscopy Details
Known Taxonomies
None
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