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Minor planet follow-up portal
v. 3.15.3
2025 HS4
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Schedule Spectroscopic Observations
Name
C13WCQ5 → 2025 HS4
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: 2025-Apr-27 03:50
Orbital Elements
MPC Comet
Epoch of elements (MJD)
60792.0
April 27, 2025
Orbital inclination in deg
11.27167
Longitude of Ascending Node (deg)
137.55329
Arg of perihelion (deg)
236.85765
Eccentricity
0.9003908
Perihelion distance (AU)
0.0784860
Epoch of perihelion
Dec. 31, 2024, 4:20 a.m.
Epoch of perihelion (MJD)
60675.18118
Total Magnitude (M1)
20.5
Slope Parameter (k1)
10.0
Physical Parameters
Diameter
Initial Diameter Guess using H=20.5 and albedo=0.14 (0.01 to 0.5)
MPC Default
282.14 m
+774.0 / -133.0
Follow-up Details
NEOCP
digest2
score
96
Number of observations
12
Arc length (days)
1.96
Time since last observation (days)
0.03
Spectroscopy Details
Known Taxonomies
None
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