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Minor planet follow-up portal
v. 3.14.2
2021 HB3
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Name
C5G9A32 → 2021 HB3
Type
NEO
Status
Not 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)
Site
Min Altitude
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Measurements
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Last Update: 2021-May-01 11:41
Orbital Elements
MPC Minor Planet
Epoch of elements (MJD)
59335.0
May 1, 2021
Orbital inclination in deg
18.03705
Longitude of Ascending Node (deg)
210.97558
Arg of perihelion (deg)
29.44197
Eccentricity
0.1415267
Mean distance (AU)
1.1872772
Mean Anomaly (deg)
344.94827
Absolute Magnitude (H)
24.7
Slope Parameter (G)
0.15
Albedo (average)
0.17
Albedo (range)
0.01 - 0.60
Diameter in meters (average)
41
Diameter in meters
(range)
20 - 153
Physical Parameters
Diameter
Initial Diameter Guess using H=24.7 and albedo=0.14 (0.01 to 0.5)
MPC Default
40.78 m
+112.0 / -19.0
Follow-up Details
NEOCP
digest2
score
10
Number of observations
19
Arc length (days)
12.21
Time since last observation (days)
0.07
Spectroscopy Details
Known Taxonomies
None
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