| 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
$$
M_a = (8.419 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
8.419 |
| n |
6.000 |
| gf |
0.998 |
| gb |
-0.928 |
| k |
1.000 |
| δ90 |
1.022 |
| 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) |
| 2026-03-26 00:00 |
16:26:34.87 |
-22:48:36.5 |
HIP 80632 |
21.74 |
| 2026-03-26 12:00 |
16:26:32.85 |
-22:48:35.3 |
HIP 80632 |
22.10 |
| 2026-03-27 00:00 |
16:26:30.77 |
-22:48:33.9 |
HIP 80632 |
22.48 |
| 2026-03-27 12:00 |
16:26:28.64 |
-22:48:32.4 |
HIP 80632 |
22.87 |
| 2026-03-28 00:00 |
16:26:26.46 |
-22:48:30.8 |
HIP 80632 |
23.28 |
| 2026-03-28 12:00 |
16:26:24.23 |
-22:48:29.0 |
HIP 80632 |
23.69 |
| 2026-03-29 00:00 |
16:26:21.94 |
-22:48:27.2 |
HIP 80632 |
24.12 |
| 2026-03-29 12:00 |
16:26:19.61 |
-22:48:25.2 |
HIP 80632 |
24.56 |
| 2026-03-30 00:00 |
16:26:17.22 |
-22:48:23.1 |
HIP 80632 |
25.02 |
| 2026-03-30 12:00 |
16:26:14.78 |
-22:48:20.9 |
HIP 80632 |
25.49 |
| 2026-03-31 00:00 |
16:26:12.30 |
-22:48:18.6 |
HIP 80632 |
25.97 |
| 2026-03-31 12:00 |
16:26:09.76 |
-22:48:16.1 |
HIP 80374 |
25.75 |
| 2026-04-01 00:00 |
16:26:07.17 |
-22:48:13.5 |
HIP 80374 |
25.18 |
| 2026-04-01 12:00 |
16:26:04.53 |
-22:48:10.8 |
HIP 80374 |
24.59 |
| 2026-04-02 00:00 |
16:26:01.85 |
-22:48:08.0 |
HIP 80374 |
24.00 |
| 2026-04-02 12:00 |
16:25:59.11 |
-22:48:05.1 |
HIP 80374 |
23.40 |
| 2026-04-03 00:00 |
16:25:56.32 |
-22:48:02.0 |
HIP 80374 |
22.78 |
| 2026-04-03 12:00 |
16:25:53.49 |
-22:47:58.8 |
HIP 80374 |
22.16 |
| 2026-04-04 00:00 |
16:25:50.60 |
-22:47:55.5 |
HIP 80374 |
21.53 |
| 2026-04-04 12:00 |
16:25:47.67 |
-22:47:52.1 |
HIP 80374 |
20.89 |
| 2026-04-05 00:00 |
16:25:44.69 |
-22:47:48.6 |
HIP 80374 |
20.24 |
| 2026-04-05 12:00 |
16:25:41.66 |
-22:47:45.0 |
HIP 80374 |
19.58 |
| 2026-04-06 00:00 |
16:25:38.59 |
-22:47:41.2 |
HIP 80374 |
18.91 |
| 2026-04-06 12:00 |
16:25:35.46 |
-22:47:37.3 |
HIP 80374 |
18.24 |
| 2026-04-07 00:00 |
16:25:32.29 |
-22:47:33.3 |
HIP 80374 |
17.56 |
| 2026-04-07 12:00 |
16:25:29.07 |
-22:47:29.2 |
HIP 80374 |
16.88 |
| 2026-04-08 00:00 |
16:25:25.81 |
-22:47:25.0 |
HIP 80374 |
16.19 |
| 2026-04-08 12:00 |
16:25:22.50 |
-22:47:20.6 |
HIP 80374 |
15.50 |
| 2026-04-09 00:00 |
16:25:19.14 |
-22:47:16.2 |
HIP 80374 |
14.80 |
| 2026-04-09 12:00 |
16:25:15.74 |
-22:47:11.6 |
HIP 80374 |
14.10 |
| 2026-04-10 00:00 |
16:25:12.29 |
-22:47:06.9 |
HIP 80374 |
13.41 |
| 2026-04-10 12:00 |
16:25:08.80 |
-22:47:02.1 |
HIP 80374 |
12.71 |
| 2026-04-11 00:00 |
16:25:05.26 |
-22:46:57.1 |
HIP 80374 |
12.02 |
| 2026-04-11 12:00 |
16:25:01.68 |
-22:46:52.1 |
HIP 80374 |
11.34 |
| 2026-04-12 00:00 |
16:24:58.05 |
-22:46:47.0 |
HIP 80374 |
10.67 |
| 2026-04-12 12:00 |
16:24:54.38 |
-22:46:41.7 |
HIP 80374 |
10.02 |
| 2026-04-13 00:00 |
16:24:50.66 |
-22:46:36.3 |
HIP 80374 |
9.40 |
| 2026-04-13 12:00 |
16:24:46.90 |
-22:46:30.8 |
HIP 80374 |
8.80 |
| 2026-04-14 00:00 |
16:24:43.10 |
-22:46:25.2 |
HIP 80374 |
8.25 |
| 2026-04-14 12:00 |
16:24:39.26 |
-22:46:19.5 |
HIP 80374 |
7.76 |
| 2026-04-15 00:00 |
16:24:35.37 |
-22:46:13.7 |
HIP 80374 |
7.33 |
| 2026-04-15 12:00 |
16:24:31.45 |
-22:46:07.7 |
HIP 80374 |
6.99 |
| 2026-04-16 00:00 |
16:24:27.48 |
-22:46:01.7 |
HIP 80374 |
6.76 |