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Minor planet follow-up portal
v. 3.15.2
1999 FJ21
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Schedule Spectroscopic Observations
Type
NEO (Apollo)
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
2022-05-03T22:20:00
2022-05-04T22:20:00
SIN
Req: 2871439
Measurements
Show Measurements
Plot Visibility
Last Update: 2022-Apr-05 19:22
Orbital Elements
MPC Minor Planet
Epoch of elements (MJD)
59673.0
April 4, 2022
Orbital inclination in deg
21.9583
Longitude of Ascending Node (deg)
19.44776
Arg of perihelion (deg)
67.70247
Eccentricity
0.2746274
Mean distance (AU)
1.2744917
Mean Anomaly (deg)
76.98689
Absolute Magnitude (H)
20.24
Slope Parameter (G)
0.15
Albedo (average)
0.17
Albedo (range)
0.01 - 0.60
Diameter in meters (average)
318
Diameter in meters
(range)
154 - 1190
Physical Parameters
Diameter
Initial Diameter Guess using H=20.24 and albedo=0.14 (0.01 to 0.5)
MPC Default
318.02 m
+872.0 / -150.0
Absolute Magnitude
E2021V05
20.21
Follow-up Details
Number of observations
288
Arc length (days)
5113.00
Time since last observation (days)
1.81
Spectroscopy Details
Known Taxonomies
None
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