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C/2009 O4
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Type
Comet (Hyperbolic)
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)
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Last Update: 2026-Jun-17 04:40
Orbital Elements
MPC Comet
Epoch of elements (MJD)
55077.0
Sept. 3, 2009
Orbital inclination in deg
95.82327714615742
Longitude of Ascending Node (deg)
172.9365184783596
Arg of perihelion (deg)
223.7319409757209
Eccentricity
1.001336314611524
Perihelion distance (AU)
2.5637892
Epoch of perihelion
Jan. 1, 2010, 6:37 a.m.
Epoch of perihelion (MJD)
55197.27629
Total Magnitude (M1)
4.9
Slope Parameter (k1)
52.5
Physical Parameters
Follow-up Details
Number of observations
764
Arc length (days)
137.00
Spectroscopy Details
Known Taxonomies
None
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