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Minor planet follow-up portal
v. 3.15.2
2021 SG
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Schedule Spectroscopic Observations
Name
ZTF0MtF → 2021 SG
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)
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Measurements
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Last Update: 2021-Sep-17 21:30
Orbital Elements
MPC Minor Planet
Epoch of elements (MJD)
59474.0
Sept. 17, 2021
Orbital inclination in deg
3.18177
Longitude of Ascending Node (deg)
352.2082
Arg of perihelion (deg)
256.58124
Eccentricity
0.7242328
Mean distance (AU)
1.7148867
Mean Anomaly (deg)
21.15844
Absolute Magnitude (H)
24.0
Slope Parameter (G)
0.15
Albedo (average)
0.17
Albedo (range)
0.01 - 0.60
Diameter in meters (average)
56
Diameter in meters
(range)
27 - 211
Physical Parameters
Diameter
Initial Diameter Guess using H=24.0 and albedo=0.14 (0.01 to 0.5)
MPC Default
56.29 m
+154.0 / -27.0
Follow-up Details
NEOCP
digest2
score
84
Number of observations
92
Arc length (days)
0.73
Time since last observation (days)
0.02
Spectroscopy Details
Known Taxonomies
None
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