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Minor planet follow-up portal
v. 3.15.3
2019 YR4
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Schedule Spectroscopic Observations
Name
P20VSkP → 2019 YR4
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
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Measurements
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Last Update: 2020-Jan-01 00:57
Orbital Elements
MPC Minor Planet
Epoch of elements (MJD)
58848.0
Dec. 31, 2019
Orbital inclination in deg
26.48165
Longitude of Ascending Node (deg)
93.51526
Arg of perihelion (deg)
147.76949
Eccentricity
0.6805856
Mean distance (AU)
1.9935996
Mean Anomaly (deg)
313.24962
Absolute Magnitude (H)
18.4
Slope Parameter (G)
0.15
Albedo (average)
0.17
Albedo (range)
0.01 - 0.60
Diameter in meters (average)
742
Diameter in meters
(range)
358 - 2777
Physical Parameters
Diameter
Initial Diameter Guess using H=18.4 and albedo=0.14 (0.01 to 0.5)
MPC Default
742.1 m
+2035.0 / -349.0
Follow-up Details
NEOCP
digest2
score
79
Number of observations
23
Arc length (days)
33.49
Time since last observation (days)
0.11
Spectroscopy Details
Known Taxonomies
None
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