Login
L
as
C
umbres
O
bservatory
Minor planet follow-up portal
v. 3.15.3
Tsuchinshan (C/2025 A3)
Home
Targets
Active
Candidates
Characterization
LOOK Project
Standards
Blocks
Data
Schedule Observations
Schedule Spectroscopic Observations
Name
X85042 → C/2025 A3
Type
Comet
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; (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: 2025-Apr-28 19:08
Orbital Elements
MPC Comet
Epoch of elements (MJD)
60800.0
May 5, 2025
Orbital inclination in deg
9.97689
Longitude of Ascending Node (deg)
322.4337
Arg of perihelion (deg)
222.3027
Eccentricity
0.4316686
Perihelion distance (AU)
5.7923743
Epoch of perihelion
March 15, 2026, 12:06 a.m.
Epoch of perihelion (MJD)
61114.00448
Total Magnitude (M1)
13.5
Slope Parameter (k1)
4.5
Physical Parameters
Phase Slope
MPC Default
1.8
K1
autocmod 3.0f
6
4.5
M1
2 parameter fit from 85 observations, autocmod 3.0f
6
13.5
+/- 0.7
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
87
Arc length (days)
98.00
Time since last observation (days)
10.26
Spectroscopy Details
Known Taxonomies
None
×
No messages.