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Minor planet follow-up portal
v. 3.14.2
471240 (2011 BT15)
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Type
NEO (Apollo) [PHA]
Status
Not Following
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; (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: 2021-Jun-10 06:07
Orbital Elements
MPC Minor Planet
Epoch of elements (MJD)
59319.0
April 15, 2021
Orbital inclination in deg
1.66143
Longitude of Ascending Node (deg)
105.36598
Arg of perihelion (deg)
308.81049
Eccentricity
0.3023056
Mean distance (AU)
1.2929229
Mean Anomaly (deg)
8.40256
Absolute Magnitude (H)
21.71
Slope Parameter (G)
0.15
Albedo (average)
0.17
Albedo (range)
0.01 - 0.60
Diameter in meters (average)
162
Diameter in meters
(range)
78 - 605
Physical Parameters
Absolute Magnitude
MPO383348
21.7
Rotation Period
REFERENCE LIST:[Warner, B.D. (2014) Minor Planet Bull. 41, 157-168.]
LCDB (Rev. 2020-October); Warner et al., 2009
0.109138 h
Diameter
Initial Diameter Guess using H=21.71 and albedo=0.14 (0.01 to 0.5)
MPC Default
161.61 m
+443.0 / -76.0
Follow-up Details
Number of observations
236
Arc length (days)
5114.00
Time since last observation (days)
357.25
Spectroscopy Details
Known Taxonomies
None
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