| 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) |
| 2026-07-29 00:00 |
16:07:55.23 |
-22:10:12.2 |
HIP 78977 |
10.90 |
| 2026-07-29 12:00 |
16:07:53.10 |
-22:10:06.4 |
HIP 78977 |
10.45 |
| 2026-07-30 00:00 |
16:07:51.01 |
-22:10:00.8 |
HIP 78977 |
10.01 |
| 2026-07-30 12:00 |
16:07:48.98 |
-22:09:55.3 |
HIP 78977 |
9.59 |
| 2026-07-31 00:00 |
16:07:46.99 |
-22:09:49.9 |
HIP 78977 |
9.19 |
| 2026-07-31 12:00 |
16:07:45.06 |
-22:09:44.6 |
HIP 78977 |
8.81 |
| 2026-08-01 00:00 |
16:07:43.17 |
-22:09:39.5 |
HIP 78977 |
8.44 |
| 2026-08-01 12:00 |
16:07:41.34 |
-22:09:34.5 |
HIP 78977 |
8.09 |
| 2026-08-02 00:00 |
16:07:39.55 |
-22:09:29.6 |
HIP 78977 |
7.75 |
| 2026-08-02 12:00 |
16:07:37.82 |
-22:09:24.9 |
HIP 78977 |
7.43 |
| 2026-08-03 00:00 |
16:07:36.14 |
-22:09:20.2 |
HIP 78977 |
7.13 |
| 2026-08-03 12:00 |
16:07:34.51 |
-22:09:15.7 |
HIP 78977 |
6.85 |
| 2026-08-04 00:00 |
16:07:32.93 |
-22:09:11.3 |
HIP 78977 |
6.59 |
| 2026-08-04 12:00 |
16:07:31.40 |
-22:09:07.1 |
HIP 78977 |
6.35 |
| 2026-08-05 00:00 |
16:07:29.92 |
-22:09:03.0 |
HIP 78977 |
6.13 |
| 2026-08-05 12:00 |
16:07:28.50 |
-22:08:59.0 |
HIP 78977 |
5.92 |
| 2026-08-06 00:00 |
16:07:27.13 |
-22:08:55.1 |
HIP 78977 |
5.74 |
| 2026-08-06 12:00 |
16:07:25.80 |
-22:08:51.4 |
HIP 78977 |
5.57 |
| 2026-08-07 00:00 |
16:07:24.53 |
-22:08:47.8 |
HIP 78977 |
5.42 |
| 2026-08-07 12:00 |
16:07:23.32 |
-22:08:44.4 |
HIP 78977 |
5.29 |
| 2026-08-08 00:00 |
16:07:22.15 |
-22:08:41.0 |
HIP 78977 |
5.18 |
| 2026-08-08 12:00 |
16:07:21.04 |
-22:08:37.8 |
HIP 78977 |
5.08 |
| 2026-08-09 00:00 |
16:07:19.98 |
-22:08:34.8 |
HIP 78977 |
5.00 |
| 2026-08-09 12:00 |
16:07:18.97 |
-22:08:31.9 |
HIP 78977 |
4.93 |
| 2026-08-10 00:00 |
16:07:18.02 |
-22:08:29.1 |
HIP 78977 |
4.88 |
| 2026-08-10 12:00 |
16:07:17.12 |
-22:08:26.4 |
HIP 78977 |
4.84 |
| 2026-08-11 00:00 |
16:07:16.27 |
-22:08:23.9 |
HIP 78977 |
4.81 |
| 2026-08-11 12:00 |
16:07:15.48 |
-22:08:21.5 |
HIP 78977 |
4.78 |
| 2026-08-12 00:00 |
16:07:14.73 |
-22:08:19.3 |
HIP 78977 |
4.77 |
| 2026-08-12 12:00 |
16:07:14.05 |
-22:08:17.2 |
HIP 78977 |
4.76 |
| 2026-08-13 00:00 |
16:07:13.41 |
-22:08:15.2 |
HIP 78977 |
4.76 |
| 2026-08-13 12:00 |
16:07:12.83 |
-22:08:13.4 |
HIP 78977 |
4.76 |
| 2026-08-14 00:00 |
16:07:12.30 |
-22:08:11.7 |
HIP 78977 |
4.76 |
| 2026-08-14 12:00 |
16:07:11.83 |
-22:08:10.2 |
HIP 78977 |
4.77 |
| 2026-08-15 00:00 |
16:07:11.41 |
-22:08:08.8 |
HIP 78977 |
4.78 |
| 2026-08-15 12:00 |
16:07:11.04 |
-22:08:07.5 |
HIP 78977 |
4.78 |
| 2026-08-16 00:00 |
16:07:10.73 |
-22:08:06.4 |
HIP 78977 |
4.79 |
| 2026-08-16 12:00 |
16:07:10.47 |
-22:08:05.4 |
HIP 78977 |
4.79 |
| 2026-08-17 00:00 |
16:07:10.26 |
-22:08:04.5 |
HIP 78977 |
4.80 |
| 2026-08-17 12:00 |
16:07:10.11 |
-22:08:03.8 |
HIP 78977 |
4.80 |
| 2026-08-18 00:00 |
16:07:10.01 |
-22:08:03.2 |
HIP 78977 |
4.80 |
| 2026-08-18 12:00 |
16:07:09.97 |
-22:08:02.8 |
HIP 78977 |
4.80 |
| 2026-08-19 00:00 |
16:07:09.97 |
-22:08:02.5 |
HIP 78977 |
4.79 |