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Minor planet follow-up portal
v. 3.17.1a
2005 GR33
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Type
NEO (Aten)
Status
Actively Following
Characterization Target
Source
Yarkovsky
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)
ELP 0.4m - V98; (TEMP; McDonald, Texas)
ELP 0.4m - V99; (TEMP; 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: 2025-Dec-31 19:18
Orbital Elements
MPC Minor Planet
Epoch of elements (MJD)
61000.0
Nov. 21, 2025
Orbital inclination in deg
27.98884
Longitude of Ascending Node (deg)
22.66389
Arg of perihelion (deg)
334.64674
Eccentricity
0.3844224
Mean distance (AU)
0.7784044
Mean Anomaly (deg)
229.45096
Absolute Magnitude (H)
22.14
Slope Parameter (G)
0.15
Albedo (average)
0.17
Albedo (range)
0.01 - 0.60
Diameter in meters (average)
133
Diameter in meters
(range)
64 - 496
Physical Parameters
Diameter
Initial Diameter Guess using H=22.14 and albedo=0.14 (0.01 to 0.5)
MPC Default
132.57 m
+363.0 / -62.0
Absolute Magnitude
MPO740036
22.14
Follow-up Details
Number of observations
150
Arc length (days)
4737.00
Time since last observation (days)
2829.03
Spectroscopy Details
(Plots)
SMASS Spectra
NIR
Known Taxonomies
None
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