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v. 3.17.1a
363505 (2003 UC20)
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Type
NEO (Aten) [PHA]
Status
Actively Following
Characterization Target
Source
Goldstone
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)
ELP 0.4m - V98; (TEMP; McDonald, Texas)
ELP 0.4m - V99; (TEMP; 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: 2025-Dec-31 19:54
Orbital Elements
MPC Minor Planet
Epoch of elements (MJD)
61033.0
Dec. 24, 2025
Orbital inclination in deg
3.77592
Longitude of Ascending Node (deg)
187.92015
Arg of perihelion (deg)
60.1729
Eccentricity
0.3369031
Mean distance (AU)
0.7812516
Mean Anomaly (deg)
164.89966
Absolute Magnitude (H)
18.5
Slope Parameter (G)
0.15
Albedo (average)
0.17
Albedo (range)
0.01 - 0.60
Diameter in meters (average)
709
Diameter in meters
(range)
342 - 2652
Physical Parameters
Rotation Period
[Result based on less than full coverage, so that the period may be wrong by 30 percent or so.] REFERENCE LIST:[Pravec, P.; Wolf, M.; Sarounova, L. (2019) http://www.asu.cas.cz/~ppravec/neo.htm]
LCDB (Rev. 2023-October); Warner et al., 2009
29.6 h
Absolute Magnitude
E2024-AG5
18.47
Albedo
urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)
0.029
+/- 0.006
Diameter
urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)
1.876 km
+/- 0.037
Follow-up Details
Number of observations
454
Arc length (days)
7670.00
Time since last observation (days)
4.07
Spectroscopy Details
(Plots)
MANOS Target
(No Data Yet)
SMASS Spectra
NIR
Known Taxonomies
None
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