Login
L
as
C
umbres
O
bservatory
Minor planet follow-up portal
v. 3.17.1
C/1977 H1
Home
Targets
Active
Candidates
Characterization
LOOK Project
Standards
Blocks
Data
Schedule Observations
Schedule Spectroscopic Observations
Type
Comet
Status
Not Following
Source
NEODSYS
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
No blocks have been scheduled
Measurements
Show Measurements
Plot Visibility
Last Update: 2026-May-22 16:32
Orbital Elements
MPC Comet
Epoch of elements (MJD)
43255.0
April 22, 1977
Orbital inclination in deg
43.19493843748117
Longitude of Ascending Node (deg)
20.13858282094856
Arg of perihelion (deg)
249.3582191747553
Eccentricity
0.9999924884560689
Perihelion distance (AU)
1.1175469
Epoch of perihelion
June 30, 1977, 11:22 p.m.
Epoch of perihelion (MJD)
43324.97404
Total Magnitude (M1)
14.6
Slope Parameter (k1)
25.0
Physical Parameters
Follow-up Details
Number of observations
35
Arc length (days)
29.00
Spectroscopy Details
Known Taxonomies
None
×
No messages.