Login
L
as
C
umbres
O
bservatory
Minor planet follow-up portal
v. 3.17.1
C/1999 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 18:57
Orbital Elements
MPC Comet
Epoch of elements (MJD)
51407.0
Aug. 17, 1999
Orbital inclination in deg
149.3529052012608
Longitude of Ascending Node (deg)
162.6508965827786
Arg of perihelion (deg)
40.70156746673118
Eccentricity
0.9997447461967472
Perihelion distance (AU)
0.7081071
Epoch of perihelion
July 11, 1999, 4:07 a.m.
Epoch of perihelion (MJD)
51370.17215
Total Magnitude (M1)
9.4
Slope Parameter (k1)
27.5
Physical Parameters
Follow-up Details
Number of observations
1019
Arc length (days)
267.00
Spectroscopy Details
Known Taxonomies
None
×
No messages.