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Minor planet follow-up portal
v. 3.15.3
2003 GH21
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Data
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Schedule Spectroscopic Observations
Type
NEO (Amor)
Status
Not Following
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)
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
Check Spectroscopic Feasibility
Create LC Plot
Recent Blocks Scheduled
2021-03-31T23:40:00
2021-04-01T02:50:00
LSC
Req: 2433186
Measurements
Show Measurements
Plot Visibility
Last Update: 2021-May-13 19:07
Orbital Elements
MPC Minor Planet
Epoch of elements (MJD)
59342.0
May 8, 2021
Orbital inclination in deg
20.09759
Longitude of Ascending Node (deg)
198.4247
Arg of perihelion (deg)
311.82204
Eccentricity
0.2621997
Mean distance (AU)
1.4827073
Mean Anomaly (deg)
33.925
Absolute Magnitude (H)
21.72
Slope Parameter (G)
0.15
Albedo (average)
0.17
Albedo (range)
0.01 - 0.60
Diameter in meters (average)
161
Diameter in meters
(range)
78 - 602
Physical Parameters
Absolute Magnitude
E2021-HC5
21.62
Diameter
Initial Diameter Guess using H=21.72 and albedo=0.14 (0.01 to 0.5)
MPC Default
160.86 m
+441.0 / -76.0
Follow-up Details
Number of observations
126
Arc length (days)
6940.00
Time since last observation (days)
1.80
Spectroscopy Details
Known Taxonomies
None
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