| Parameter |
Value |
| Designation |
C/2011 C3 (Gibbs) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2011-04-07T12:40:26.362560Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:31:48Z |
| Obs used |
80 |
| NEO |
- |
| M1 |
14.100 |
| K1 |
22.750 |
| PC |
0.030 |
Osculating Elements
| Parameter |
Value |
| Epoch (epoch_cal, TDB) |
2011-03-16.0000000 |
| e |
0.99527440 |
| q (au) |
1.516895 |
| a (au) |
320.995070 |
| i (deg) |
49.376107 |
| Ω (om, deg) |
20.889963 |
| ω (w, deg) |
206.809905 |
| M (ma, deg) |
359.996139 |
Magnitude
Scatter + Global Linear
$$
M_a = (14.952 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
14.952 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-1.000 |
| k |
1.000 |
| δ90 |
10.000 |
| 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 |
01:18:27.06 |
+10:13:55.0 |
HIP 6134 |
15.92 |
| 2026-03-26 12:00 |
01:18:30.34 |
+10:14:16.4 |
HIP 6134 |
16.10 |
| 2026-03-27 00:00 |
01:18:33.63 |
+10:14:37.9 |
HIP 6134 |
16.32 |
| 2026-03-27 12:00 |
01:18:36.93 |
+10:14:59.4 |
HIP 6134 |
16.59 |
| 2026-03-28 00:00 |
01:18:40.23 |
+10:15:21.0 |
HIP 6134 |
16.91 |
| 2026-03-28 12:00 |
01:18:43.54 |
+10:15:42.6 |
HIP 6134 |
17.26 |
| 2026-03-29 00:00 |
01:18:46.86 |
+10:16:04.2 |
HIP 6134 |
17.65 |
| 2026-03-29 12:00 |
01:18:50.18 |
+10:16:25.9 |
HIP 6134 |
18.08 |
| 2026-03-30 00:00 |
01:18:53.51 |
+10:16:47.7 |
HIP 6134 |
18.54 |
| 2026-03-30 12:00 |
01:18:56.84 |
+10:17:09.5 |
HIP 6134 |
19.04 |
| 2026-03-31 00:00 |
01:19:00.18 |
+10:17:31.3 |
HIP 6134 |
19.56 |
| 2026-03-31 12:00 |
01:19:03.52 |
+10:17:53.2 |
HIP 6134 |
20.11 |
| 2026-04-01 00:00 |
01:19:06.87 |
+10:18:15.1 |
HIP 6134 |
20.69 |
| 2026-04-01 12:00 |
01:19:10.22 |
+10:18:37.1 |
HIP 6134 |
21.29 |
| 2026-04-02 00:00 |
01:19:13.57 |
+10:18:59.1 |
HIP 6134 |
21.91 |
| 2026-04-02 12:00 |
01:19:16.93 |
+10:19:21.1 |
HIP 6134 |
22.55 |
| 2026-04-03 00:00 |
01:19:20.30 |
+10:19:43.2 |
HIP 6134 |
23.21 |
| 2026-04-03 12:00 |
01:19:23.67 |
+10:20:05.3 |
HIP 6134 |
23.89 |
| 2026-04-04 00:00 |
01:19:27.04 |
+10:20:27.4 |
HIP 6134 |
24.58 |
| 2026-04-04 12:00 |
01:19:30.41 |
+10:20:49.6 |
HIP 6134 |
25.29 |
| 2026-04-05 00:00 |
01:19:33.79 |
+10:21:11.8 |
HIP 6134 |
26.01 |
| 2026-04-05 12:00 |
01:19:37.17 |
+10:21:34.0 |
HIP 6134 |
26.75 |
| 2026-04-06 00:00 |
01:19:40.55 |
+10:21:56.3 |
HIP 6134 |
27.49 |
| 2026-04-06 12:00 |
01:19:43.94 |
+10:22:18.5 |
HIP 6134 |
28.25 |
| 2026-04-07 00:00 |
01:19:47.33 |
+10:22:40.8 |
HIP 6134 |
29.01 |
| 2026-04-07 12:00 |
01:19:50.72 |
+10:23:03.2 |
HIP 6134 |
29.78 |
| 2026-04-08 00:00 |
01:19:54.11 |
+10:23:25.5 |
HIP 6134 |
30.57 |
| 2026-04-08 12:00 |
01:19:57.50 |
+10:23:47.9 |
HIP 6134 |
31.36 |
| 2026-04-09 00:00 |
01:20:00.89 |
+10:24:10.3 |
HIP 6134 |
32.15 |
| 2026-04-09 12:00 |
01:20:04.29 |
+10:24:32.7 |
HIP 6134 |
32.96 |
| 2026-04-10 00:00 |
01:20:07.69 |
+10:24:55.2 |
HIP 6212 |
33.27 |
| 2026-04-10 12:00 |
01:20:11.08 |
+10:25:17.6 |
HIP 6212 |
33.09 |
| 2026-04-11 00:00 |
01:20:14.48 |
+10:25:40.1 |
HIP 6212 |
32.93 |
| 2026-04-11 12:00 |
01:20:17.88 |
+10:26:02.6 |
HIP 6212 |
32.80 |
| 2026-04-12 00:00 |
01:20:21.28 |
+10:26:25.0 |
HIP 6212 |
32.69 |
| 2026-04-12 12:00 |
01:20:24.68 |
+10:26:47.6 |
HIP 6212 |
32.61 |
| 2026-04-13 00:00 |
01:20:28.07 |
+10:27:10.1 |
HIP 6212 |
32.56 |
| 2026-04-13 12:00 |
01:20:31.47 |
+10:27:32.6 |
HIP 6212 |
32.52 |
| 2026-04-14 00:00 |
01:20:34.87 |
+10:27:55.1 |
HIP 6442 |
32.15 |
| 2026-04-14 12:00 |
01:20:38.26 |
+10:28:17.7 |
HIP 6442 |
31.40 |
| 2026-04-15 00:00 |
01:20:41.66 |
+10:28:40.2 |
HIP 6442 |
30.65 |
| 2026-04-15 12:00 |
01:20:45.05 |
+10:29:02.7 |
HIP 6442 |
29.92 |
| 2026-04-16 00:00 |
01:20:48.44 |
+10:29:25.3 |
HIP 6442 |
29.20 |