Login
L
as
C
umbres
O
bservatory
Minor planet follow-up portal
v. 3.14.2
Lemmon (C/2017 S7)
Home
Targets
Active
Candidates
Characterization
LOOK Project
Standards
Blocks
Data
Schedule Observations
Schedule Spectroscopic Observations
Name
YT86F9F → C/2017 S7
Type
Comet (Hyperbolic)
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
Check Spectroscopic Feasibility
Create LC Plot
Recent Blocks Scheduled
No blocks have been scheduled
Measurements
Show Measurements
Plot Visibility
Last Update: 2018-Dec-04 00:00
Orbital Elements
MPC Comet
Epoch of elements (MJD)
59200.0
Dec. 17, 2020
Orbital inclination in deg
124.22955
Longitude of Ascending Node (deg)
262.78053
Arg of perihelion (deg)
187.58497
Eccentricity
1.0003938
Perihelion distance (AU)
7.6076090
Epoch of perihelion
May 25, 2017, 5:55 a.m.
Epoch of perihelion (MJD)
57898.24675
Total Magnitude (M1)
6.7
Slope Parameter (k1)
10.0
Physical Parameters
Reciprocal of semimajor axis
E2020-SI8
0.000104 au
+/- 0.0000018
+/- 0.0000018
PC
autocmod 2.9c
14
0.03
K2
autocmod 2.9c
14
5.0
M2
from 3 observations, autocmod 2.9c
14
10.7
+/- 0.1
K1
autocmod 2.9c
14
10.0
M1
from 139 observations, assumed slope, autocmod 2.9c
14
6.7
+/- 0.5
Follow-up Details
NEOCP
digest2
score
78
Number of observations
154
Arc length (days)
1056.00
Time since last observation (days)
1181.12
Spectroscopy Details
Known Taxonomies
None
×
No messages.