| Parameter |
Value |
| Designation |
C/2006 U7 (Gibbs) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2007-03-28T01:18:43.738560Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:31:01Z |
| Obs used |
59 |
| NEO |
- |
| M1 |
11.600 |
| K1 |
10.000 |
| PC |
0.030 |
Osculating Elements
| Parameter |
Value |
| Epoch (epoch_cal, TDB) |
2006-11-14.0000000 |
| e |
0.63067072 |
| q (au) |
4.425542 |
| a (au) |
11.982647 |
| i (deg) |
7.230080 |
| Ω (om, deg) |
57.761042 |
| ω (w, deg) |
12.898865 |
| M (ma, deg) |
356.814652 |
Magnitude
Scatter + Global Linear
$$
M_a = (8.405 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
8.405 |
| n |
6.000 |
| gf |
0.969 |
| gb |
-0.928 |
| k |
1.000 |
| δ90 |
1.079 |
| 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 |
16:16:26.16 |
-22:30:39.8 |
HIP 79676 |
20.49 |
| 2026-06-01 12:00 |
16:16:20.40 |
-22:30:27.2 |
HIP 79676 |
20.06 |
| 2026-06-02 00:00 |
16:16:14.65 |
-22:30:14.7 |
HIP 79676 |
19.70 |
| 2026-06-02 12:00 |
16:16:08.90 |
-22:30:02.1 |
HIP 79621 |
18.89 |
| 2026-06-03 00:00 |
16:16:03.16 |
-22:29:49.5 |
HIP 79621 |
17.59 |
| 2026-06-03 12:00 |
16:15:57.43 |
-22:29:36.9 |
HIP 79621 |
16.30 |
| 2026-06-04 00:00 |
16:15:51.70 |
-22:29:24.2 |
HIP 79621 |
15.01 |
| 2026-06-04 12:00 |
16:15:45.98 |
-22:29:11.6 |
HIP 79621 |
13.74 |
| 2026-06-05 00:00 |
16:15:40.27 |
-22:28:58.9 |
HIP 79621 |
12.48 |
| 2026-06-05 12:00 |
16:15:34.57 |
-22:28:46.3 |
HIP 79621 |
11.24 |
| 2026-06-06 00:00 |
16:15:28.88 |
-22:28:33.6 |
HIP 79621 |
10.02 |
| 2026-06-06 12:00 |
16:15:23.20 |
-22:28:20.9 |
HIP 79621 |
8.85 |
| 2026-06-07 00:00 |
16:15:17.52 |
-22:28:08.3 |
HIP 79621 |
7.72 |
| 2026-06-07 12:00 |
16:15:11.86 |
-22:27:55.6 |
HIP 79621 |
6.67 |
| 2026-06-08 00:00 |
16:15:06.21 |
-22:27:42.9 |
HIP 79621 |
5.73 |
| 2026-06-08 12:00 |
16:15:00.58 |
-22:27:30.2 |
HIP 79621 |
4.98 |
| 2026-06-09 00:00 |
16:14:54.95 |
-22:27:17.5 |
HIP 79621 |
4.49 |
| 2026-06-09 12:00 |
16:14:49.34 |
-22:27:04.9 |
HIP 79621 |
4.36 |
| 2026-06-10 00:00 |
16:14:43.74 |
-22:26:52.2 |
HIP 79621 |
4.62 |
| 2026-06-10 12:00 |
16:14:38.16 |
-22:26:39.5 |
HIP 79621 |
5.20 |
| 2026-06-11 00:00 |
16:14:32.59 |
-22:26:26.9 |
HIP 79621 |
6.02 |
| 2026-06-11 12:00 |
16:14:27.03 |
-22:26:14.2 |
HIP 79621 |
6.98 |
| 2026-06-12 00:00 |
16:14:21.49 |
-22:26:01.6 |
HIP 79621 |
8.03 |
| 2026-06-12 12:00 |
16:14:15.97 |
-22:25:48.9 |
HIP 79621 |
9.14 |
| 2026-06-13 00:00 |
16:14:10.47 |
-22:25:36.3 |
HIP 79621 |
10.29 |
| 2026-06-13 12:00 |
16:14:04.98 |
-22:25:23.7 |
HIP 79621 |
11.47 |
| 2026-06-14 00:00 |
16:13:59.51 |
-22:25:11.1 |
HIP 79476 |
11.74 |
| 2026-06-14 12:00 |
16:13:54.05 |
-22:24:58.6 |
HIP 79476 |
10.64 |
| 2026-06-15 00:00 |
16:13:48.62 |
-22:24:46.0 |
HIP 79476 |
9.59 |
| 2026-06-15 12:00 |
16:13:43.21 |
-22:24:33.5 |
HIP 79476 |
8.60 |
| 2026-06-16 00:00 |
16:13:37.81 |
-22:24:21.0 |
HIP 79476 |
7.70 |
| 2026-06-16 12:00 |
16:13:32.44 |
-22:24:08.5 |
HIP 79476 |
6.92 |
| 2026-06-17 00:00 |
16:13:27.09 |
-22:23:56.1 |
HIP 79476 |
6.29 |
| 2026-06-17 12:00 |
16:13:21.76 |
-22:23:43.6 |
HIP 79476 |
5.87 |
| 2026-06-18 00:00 |
16:13:16.45 |
-22:23:31.2 |
HIP 79476 |
5.70 |
| 2026-06-18 12:00 |
16:13:11.16 |
-22:23:18.9 |
HIP 79476 |
5.79 |
| 2026-06-19 00:00 |
16:13:05.90 |
-22:23:06.5 |
HIP 79476 |
6.14 |
| 2026-06-19 12:00 |
16:13:00.66 |
-22:22:54.2 |
HIP 79476 |
6.70 |
| 2026-06-20 00:00 |
16:12:55.45 |
-22:22:41.9 |
HIP 79476 |
7.42 |
| 2026-06-20 12:00 |
16:12:50.26 |
-22:22:29.7 |
HIP 79476 |
8.25 |
| 2026-06-21 00:00 |
16:12:45.09 |
-22:22:17.5 |
HIP 79476 |
9.16 |
| 2026-06-21 12:00 |
16:12:39.95 |
-22:22:05.3 |
HIP 79476 |
10.14 |
| 2026-06-22 00:00 |
16:12:34.84 |
-22:21:53.2 |
HIP 79476 |
11.15 |