Login
L
as
C
umbres
O
bservatory
Minor planet follow-up portal
v. 3.17.1a
40P/Vaisala 1 (40P/1949 Y1)
Home
Targets
Active
Candidates
Characterization
LOOK Project
Standards
Blocks
Data
Schedule Observations
Schedule Spectroscopic Observations
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; (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
Check Spectroscopic Feasibility
Create LC Plot
Recent Blocks Scheduled
2026-01-21T02:33:00
2026-01-21T07:33:00
SIN
Req: 4089849
2026-01-21T10:33:00
2026-01-21T15:33:00
SIN
Req: 4089850
2026-01-22T02:33:00
2026-01-22T07:33:00
SIN
Req: 4089851
2026-01-22T10:33:00
2026-01-22T15:33:00
SIN
Req: 4089852
2026-01-23T02:33:00
2026-01-23T07:33:00
SIN
Req: 4089853
2026-01-23T10:33:00
2026-01-23T15:33:00
SIN
Req: 4089854
Measurements
Show Measurements
Plot Visibility
Ingest Time: 2026-Jan-20 21:03
Orbital Elements
MPC Comet
Epoch of elements (MJD)
61000.0
Nov. 21, 2025
Orbital inclination in deg
11.64036
Longitude of Ascending Node (deg)
128.90095
Arg of perihelion (deg)
52.05696
Eccentricity
0.6310844
Perihelion distance (AU)
1.8237807
Epoch of perihelion
Nov. 12, 2025, 12:23 a.m.
Epoch of perihelion (MJD)
60991.01656
Total Magnitude (M1)
11.9
Slope Parameter (k1)
12.75
Physical Parameters
Diameter
Scotti,J (1994) BAAS 26:1375
4.2 km
PC
autocmod 3.0g
K253/6
0.03
K2
autocmod 3.0g
K253/6
5.0
M2
from 350 observations, autocmod 3.0g
K253/6
14.7
+/- 0.6
K1
autocmod 3.0g
K253/6
12.75
M1
2 parameter fit from 349 observations, autocmod 3.0g
K253/6
11.9
+/- 0.9
Phase Slope
MPC Default
4.0
Follow-up Details
Number of observations
97
Arc length (days)
399.00
Time since last observation (days)
18.88
Spectroscopy Details
Known Taxonomies
None
×
No messages.
