| Parameter |
Value |
| Designation |
C/2006 L3 (SOHO) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2006-06-02T08:09:36Z |
| Orbit solution date (soln_date, UTC) |
- |
| Obs used |
14 |
| NEO |
- |
| M1 |
- |
| K1 |
- |
| PC |
- |
Osculating Elements
| Parameter |
Value |
| Epoch (epoch_cal, TDB) |
2006-06-02.3400000 |
| e |
1.00000000 |
| q (au) |
0.004900 |
| a (au) |
- |
| i (deg) |
140.310000 |
| Ω (om, deg) |
15.420000 |
| ω (w, deg) |
90.980000 |
| M (ma, deg) |
- |
Magnitude
Scatter + Global Linear
$$
M_a = (H_0 + n\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
- |
| n |
- |
| gf |
- |
| gb |
- |
| k |
- |
| δ90 |
- |
| Parameter |
Symbol |
Range |
Description |
| Absolute magnitude at 1 AU from Sun and Earth |
H0 |
-5 to 20 |
Intrinsic brightness of the comet |
| Photometric slope parameter |
n |
2 to 6 |
Rate of brightness change with heliocentric distance |
| Forward scattering asymmetry factor |
gf |
0.8 to 1 |
Degree of forward scattering |
| Backward scattering asymmetry factor |
gb |
-1 to -0.5 |
Degree of backward scattering |
| Partitioning coefficient |
k |
0.8 to 1 |
Ratio between forward/backward scattering contributions |
| Dust-to-gas brightness ratio |
δ90 |
1 to 10 |
Relative contribution of dust scattering to gas emission |
Reference: EPSC-DPS2025-160
Ephemeris
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-06-01 00:00 |
06:47:52.54 |
-16:07:20.5 |
HIP 32664 |
14.52 |
| 2026-06-01 12:00 |
06:47:54.97 |
-16:07:09.5 |
HIP 32664 |
14.05 |
| 2026-06-02 00:00 |
06:47:57.40 |
-16:06:58.8 |
HIP 32664 |
13.59 |
| 2026-06-02 12:00 |
06:47:59.85 |
-16:06:48.2 |
HIP 32664 |
13.14 |
| 2026-06-03 00:00 |
06:48:02.31 |
-16:06:37.8 |
HIP 32664 |
12.70 |
| 2026-06-03 12:00 |
06:48:04.77 |
-16:06:27.7 |
HIP 32664 |
12.27 |
| 2026-06-04 00:00 |
06:48:07.25 |
-16:06:17.7 |
HIP 32664 |
11.85 |
| 2026-06-04 12:00 |
06:48:09.74 |
-16:06:08.0 |
HIP 32664 |
11.44 |
| 2026-06-05 00:00 |
06:48:12.24 |
-16:05:58.4 |
HIP 32664 |
11.05 |
| 2026-06-05 12:00 |
06:48:14.75 |
-16:05:49.0 |
HIP 32664 |
10.68 |
| 2026-06-06 00:00 |
06:48:17.27 |
-16:05:39.9 |
HIP 32664 |
10.32 |
| 2026-06-06 12:00 |
06:48:19.80 |
-16:05:31.0 |
HIP 32664 |
9.99 |
| 2026-06-07 00:00 |
06:48:22.34 |
-16:05:22.2 |
HIP 32664 |
9.69 |
| 2026-06-07 12:00 |
06:48:24.89 |
-16:05:13.7 |
HIP 32664 |
9.41 |
| 2026-06-08 00:00 |
06:48:27.45 |
-16:05:05.4 |
HIP 32664 |
9.16 |
| 2026-06-08 12:00 |
06:48:30.02 |
-16:04:57.3 |
HIP 32664 |
8.95 |
| 2026-06-09 00:00 |
06:48:32.60 |
-16:04:49.4 |
HIP 32664 |
8.77 |
| 2026-06-09 12:00 |
06:48:35.18 |
-16:04:41.7 |
HIP 32664 |
8.63 |
| 2026-06-10 00:00 |
06:48:37.78 |
-16:04:34.2 |
HIP 32664 |
8.54 |
| 2026-06-10 12:00 |
06:48:40.38 |
-16:04:26.9 |
HIP 32664 |
8.48 |
| 2026-06-11 00:00 |
06:48:42.99 |
-16:04:19.8 |
HIP 32664 |
8.47 |
| 2026-06-11 12:00 |
06:48:45.61 |
-16:04:13.0 |
HIP 32664 |
8.51 |
| 2026-06-12 00:00 |
06:48:48.24 |
-16:04:06.3 |
HIP 32664 |
8.58 |
| 2026-06-12 12:00 |
06:48:50.88 |
-16:03:59.9 |
HIP 32664 |
8.70 |
| 2026-06-13 00:00 |
06:48:53.52 |
-16:03:53.6 |
HIP 32664 |
8.87 |
| 2026-06-13 12:00 |
06:48:56.17 |
-16:03:47.6 |
HIP 32664 |
9.07 |
| 2026-06-14 00:00 |
06:48:58.83 |
-16:03:41.8 |
HIP 32664 |
9.31 |
| 2026-06-14 12:00 |
06:49:01.50 |
-16:03:36.3 |
HIP 32664 |
9.58 |
| 2026-06-15 00:00 |
06:49:04.17 |
-16:03:30.9 |
HIP 32664 |
9.89 |
| 2026-06-15 12:00 |
06:49:06.85 |
-16:03:25.7 |
HIP 32664 |
10.22 |
| 2026-06-16 00:00 |
06:49:09.54 |
-16:03:20.8 |
HIP 32664 |
10.59 |
| 2026-06-16 12:00 |
06:49:12.23 |
-16:03:16.1 |
HIP 32664 |
10.97 |
| 2026-06-17 00:00 |
06:49:14.93 |
-16:03:11.5 |
HIP 32664 |
11.38 |
| 2026-06-17 12:00 |
06:49:17.63 |
-16:03:07.2 |
HIP 32664 |
11.81 |
| 2026-06-18 00:00 |
06:49:20.34 |
-16:03:03.2 |
HIP 32664 |
12.26 |
| 2026-06-18 12:00 |
06:49:23.06 |
-16:02:59.3 |
HIP 32664 |
12.72 |
| 2026-06-19 00:00 |
06:49:25.78 |
-16:02:55.6 |
HIP 32664 |
13.20 |
| 2026-06-19 12:00 |
06:49:28.50 |
-16:02:52.2 |
HIP 32811 |
13.36 |
| 2026-06-20 00:00 |
06:49:31.23 |
-16:02:49.0 |
HIP 32811 |
12.70 |
| 2026-06-20 12:00 |
06:49:33.97 |
-16:02:46.0 |
HIP 32811 |
12.04 |
| 2026-06-21 00:00 |
06:49:36.71 |
-16:02:43.2 |
HIP 32811 |
11.38 |
| 2026-06-21 12:00 |
06:49:39.45 |
-16:02:40.6 |
HIP 32811 |
10.72 |
| 2026-06-22 00:00 |
06:49:42.20 |
-16:02:38.3 |
HIP 32811 |
10.06 |