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v. 3.17.1
Tsuchinshan (C/2025 A3)
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Name
X85042 → C/2025 A3
Type
Comet (Jupiter Family)
Status
Actively Following
Characterization Target
Source
LOOK Project
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,V45,V47; (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
2025-02-17T00:00:00
2025-02-18T00:00:00
SIN
Req: 3779343
2025-02-26T18:23:00
2025-02-27T12:23:00
SIN
Req: 3791353
2025-03-01T00:23:00
2025-03-02T12:23:00
SIN
Req: 3791354
2025-03-04T00:23:00
2025-03-05T12:23:00
SIN
Req: 3791355
2025-03-07T00:23:00
2025-03-08T12:23:00
SIN
Req: 3791356
2025-03-10T00:23:00
2025-03-11T12:23:00
SIN
Req: 3791357
Measurements
Show Measurements
Plot Visibility
Last Update: 2026-Jul-15 06:40
Orbital Elements
MPC Comet
Epoch of elements (MJD)
61200.0
June 9, 2026
Orbital inclination in deg
9.97585
Longitude of Ascending Node (deg)
322.42934
Arg of perihelion (deg)
222.36047
Eccentricity
0.4323174
Perihelion distance (AU)
5.7921976
Epoch of perihelion
March 15, 2026, 2:39 p.m.
Epoch of perihelion (MJD)
61114.61098
Total Magnitude (M1)
9.1
Slope Parameter (k1)
10.0
Physical Parameters
K1
autocmod 3.0g
10
10.0
M1
from 103 observations, assumed slope, autocmod 3.0g
10
9.1
+/- 0.8
Diameter
Initial Diameter Guess using H=12.5 and albedo=0.14 (0.01 to 0.5)
MPC Default
11232.1 m
+30795.0 / -5289.0
Follow-up Details
NEOCP
digest2
score
35
Number of observations
105
Arc length (days)
557.00
Time since last observation (days)
2.28
Spectroscopy Details
Known Taxonomies
None
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