| B/comets/comets | Database of the orbital elements of comets (Rocher, 2007) The catalog of Comets (2024-09-22) (1713 rows) | Code==1P |
| Column | Value | Explain (UCD) | |
| 742recno | 742 | Record number assigned by the VizieR team. Should Not be used for identification. (meta.record) | |
| Cnote | 0742 | Number of the associated "Note Cometaire" (Note 1) (meta.bib.volume) | |
| Udate | 2008-02-18 | "Y:M:D" | Date of "Note Cometaire" update (time.epoch) |
| Code | 1P | IAU code for the comet (meta.id) | |
| Name | P/Halley | IAU Name of the comet (meta.id;meta.main) | |
| OrbName | P. Rocher | Orbit Computer name (obs.observer) | |
| Elem | 2446470.5 | d | Epoch of the computed elements (JD) (time.epoch) |
| n_Elem | 1 | [0,1] relativistic effects (Note 5) (meta.note) | |
| Nobs | 8154 | Number of observations used in solution (Note 6) (meta.number) | |
| resid | 1.23 | arcsec | r.m.s. residual (Note 6) (stat.stdev) |
| Date0 | 1909-08-29 | "Y:M:D" | Date of first observation (Note 6) (time.epoch) |
| Date1 | 2003-03-08 | "Y:M:D" | Date of last observation (Note 6) (time.epoch) |
| X0 | 3.42333053579379e-01 | AU | X coordinate of position vector (Note 2) (pos.distance;pos.cartesian.x) |
| Y0 | -4.76486784837047e-01 | AU | Y coordinate of position vector (Note 2) (pos.distance;pos.cartesian.y) |
| Z0 | -2.36940933412073e-02 | AU | Z coordinate of position vector (Note 2) (pos.distance;pos.cartesian.z) |
| Xdot | -2.44458041310748e-02 | AU/d | X-component of Velocity vector (Note 2) (phys.veloc.orbital) |
| Ydot | -1.65490377204746e-02 | AU/d | Y-component of Velocity vector (Note 2) (phys.veloc.orbital) |
| Zdot | -1.09512479644013e-02 | AU/d | Z-component of Velocity vector (Note 2) (phys.veloc.orbital) |
| A1 | 8.90665256529854e-10 | AU/d2 | X-component of non-gravitational forces (Note 2) (phys.acceleration) |
| A2 | 5.70211175176559e-11 | AU/d2 | Y-component of non-gravitational forces (Note 2) (phys.acceleration) |
| A3 | 0.00000000000000e+00 | AU/d2 | Z-component of non-gravitational forces (Note 2) (phys.acceleration) |
| T0 | 2446470.958929 | d | Date of perihelion (Note 3) (src.orbital.periastron) |
| q | 0.5871033 | AU | Perihelion distance (Note 3) (pos.distance;src.orbital.periastron) |
| e | 0.9672763 | Orbit eccentricity (Note 3) (src.orbital.eccentricity) | |
| omega | 111.865644 | deg | Argument of perihelion (Note 3) (src.orbital.periastron) |
| Omega | 58.860046 | deg | Longitude of orbital node (Note 3) (src.orbital.node) |
| i | 162.242233 | deg | Inclination of the orbit (Note 3) (src.orbital.inclination) |
| H1 | 5.40 | mag | Constant term for magnitude (Note 4) (phot.mag) |
| R1 | 10.00 | mag | Term in log(r) for magnitude (Note 4) (phot.mag) |
| D1 | 5.00 | mag | Term in log(D) for magnitude (Note 4) (phot.mag) |
| H2 | 12.29 | mag | Constant term for magnitude of nucleus (Note 4) (phot.mag) |
| R2 | 5.00 | mag | Term in log(r) for magnitude of nucleus (Note 4) (phot.mag) |
| D2 | 5.00 | mag | Term in log(D) for magnitude of nucleus (Note 4) (phot.mag) |
| Ephemeride | Ephemeride | Show the Ephemeride of this Comet (from IMCCE) (meta.ref.url) | |