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Minor planet follow-up portal
v. 3.17.1
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,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-Sep-19 19:21
Orbital Elements
MPC Minor Planet
Epoch of elements (MJD)
61300.0
Sept. 17, 2026
Orbital inclination in deg
28.00631
Longitude of Ascending Node (deg)
137.21244
Arg of perihelion (deg)
211.45394
Eccentricity
0.3106189
Mean distance (AU)
1.4468539
Mean Anomaly (deg)
6.23897
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)
2404.81
Spectroscopy Details
Known Taxonomies
None
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