2025-06-16 23:48 UTC
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Minor planet follow-up portal
v. 3.15.3
2021 XK5
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Schedule Spectroscopic Observations
Name
1C91421 → 2021 XK5
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
Check Spectroscopic Feasibility
Create LC Plot
Recent Blocks Scheduled
2021-12-11T00:00:00
2021-12-12T00:00:00
SIN
Req: 2728642
Measurements
Show Measurements
Plot Visibility
Last Update: 2021-Dec-11 02:07
Orbital Elements
MPC Minor Planet
Epoch of elements (MJD)
59559.0
Dec. 11, 2021
Orbital inclination in deg
16.8523
Longitude of Ascending Node (deg)
98.67748
Arg of perihelion (deg)
324.90831
Eccentricity
0.1192107
Mean distance (AU)
1.227546
Mean Anomaly (deg)
9.23489
Absolute Magnitude (H)
21.5
Slope Parameter (G)
0.15
Albedo (average)
0.17
Albedo (range)
0.01 - 0.60
Diameter in meters (average)
178
Diameter in meters
(range)
86 - 666
Physical Parameters
Diameter
Initial Diameter Guess using H=21.5 and albedo=0.14 (0.01 to 0.5)
MPC Default
178.02 m
+488.0 / -84.0
Follow-up Details
NEOCP
digest2
score
96
Number of observations
22
Arc length (days)
1.00
Time since last observation (days)
0.61
Spectroscopy Details
Known Taxonomies
None
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