| Parameter |
Value |
| Designation |
313P/Gibbs |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2020-04-10T12:13:52.524480Z |
| Orbit solution date (soln_date, UTC) |
2025-12-12T11:12:41Z |
| Obs used |
200 |
| NEO |
- |
| M1 |
17.000 |
| K1 |
4.500 |
| PC |
- |
Osculating Elements
| Parameter |
Value |
| Epoch (epoch_cal, TDB) |
2017-08-29.0000000 |
| e |
0.23917627 |
| q (au) |
2.405470 |
| a (au) |
3.161666 |
| i (deg) |
10.948500 |
| Ω (om, deg) |
106.342997 |
| ω (w, deg) |
253.943073 |
| M (ma, deg) |
192.480572 |
Magnitude
Scatter + Global Linear
$$
M_a = (19.375 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
19.375 |
| n |
2.000 |
| gf |
1.000 |
| gb |
-0.644 |
| k |
0.800 |
| 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
Finding Chart
Ephemeris
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-06-01 00:00 |
03:43:32.39 |
+13:02:10.2 |
HIP 17379 |
14.94 |
| 2026-06-01 12:00 |
03:44:25.41 |
+13:05:34.0 |
HIP 17557 |
19.53 |
| 2026-06-02 00:00 |
03:45:18.41 |
+13:08:56.6 |
HIP 17557 |
7.29 |
| 2026-06-02 12:00 |
03:46:11.40 |
+13:12:17.9 |
HIP 17557 |
8.98 |
| 2026-06-03 00:00 |
03:47:04.37 |
+13:15:37.9 |
HIP 17617 |
17.57 |
| 2026-06-03 12:00 |
03:47:57.32 |
+13:18:56.8 |
HIP 17617 |
25.01 |
| 2026-06-04 00:00 |
03:48:50.26 |
+13:22:14.3 |
HIP 17878 |
28.99 |
| 2026-06-04 12:00 |
03:49:43.17 |
+13:25:30.6 |
HIP 17878 |
31.01 |
| 2026-06-05 00:00 |
03:50:36.07 |
+13:28:45.7 |
HIP 18033 |
27.74 |
| 2026-06-05 12:00 |
03:51:28.95 |
+13:31:59.5 |
HIP 18033 |
29.40 |
| 2026-06-06 00:00 |
03:52:21.81 |
+13:35:12.1 |
HIP 18220 |
20.88 |
| 2026-06-06 12:00 |
03:53:14.65 |
+13:38:23.4 |
HIP 18220 |
11.00 |
| 2026-06-07 00:00 |
03:54:07.46 |
+13:41:33.4 |
HIP 18274 |
7.88 |
| 2026-06-07 12:00 |
03:55:00.26 |
+13:44:42.2 |
HIP 18274 |
6.68 |
| 2026-06-08 00:00 |
03:55:53.04 |
+13:47:49.7 |
HIP 18274 |
19.38 |
| 2026-06-08 12:00 |
03:56:45.79 |
+13:50:56.0 |
HIP 18467 |
28.93 |
| 2026-06-09 00:00 |
03:57:38.52 |
+13:54:01.0 |
HIP 18551 |
19.13 |
| 2026-06-09 12:00 |
03:58:31.23 |
+13:57:04.7 |
HIP 18634 |
11.85 |
| 2026-06-10 00:00 |
03:59:23.92 |
+14:00:07.2 |
HIP 18634 |
1.90 |
| 2026-06-10 12:00 |
04:00:16.58 |
+14:03:08.3 |
HIP 18718 |
10.81 |
| 2026-06-11 00:00 |
04:01:09.21 |
+14:06:08.3 |
HIP 18718 |
14.83 |
| 2026-06-11 12:00 |
04:02:01.83 |
+14:09:06.9 |
HIP 18806 |
19.24 |
| 2026-06-12 00:00 |
04:02:54.41 |
+14:12:04.3 |
HIP 18902 |
17.19 |
| 2026-06-12 12:00 |
04:03:46.97 |
+14:15:00.4 |
HIP 18902 |
17.08 |
| 2026-06-13 00:00 |
04:04:39.50 |
+14:17:55.3 |
HIP 19085 |
12.53 |
| 2026-06-13 12:00 |
04:05:32.00 |
+14:20:48.8 |
HIP 19085 |
3.64 |
| 2026-06-14 00:00 |
04:06:24.47 |
+14:23:41.1 |
HIP 19157 |
0.59 |
| 2026-06-14 12:00 |
04:07:16.91 |
+14:26:32.1 |
HIP 19157 |
13.31 |
| 2026-06-15 00:00 |
04:08:09.33 |
+14:29:21.9 |
HIP 19362 |
11.04 |
| 2026-06-15 12:00 |
04:09:01.71 |
+14:32:10.3 |
HIP 19362 |
2.28 |
| 2026-06-16 00:00 |
04:09:54.06 |
+14:34:57.5 |
HIP 19362 |
15.01 |
| 2026-06-16 12:00 |
04:10:46.37 |
+14:37:43.4 |
HIP 19526 |
21.29 |
| 2026-06-17 00:00 |
04:11:38.65 |
+14:40:28.0 |
HIP 19617 |
17.56 |
| 2026-06-17 12:00 |
04:12:30.90 |
+14:43:11.4 |
HIP 19617 |
13.49 |
| 2026-06-18 00:00 |
04:13:23.11 |
+14:45:53.5 |
HIP 19781 |
17.28 |
| 2026-06-18 12:00 |
04:14:15.28 |
+14:48:34.2 |
HIP 19781 |
11.34 |
| 2026-06-19 00:00 |
04:15:07.42 |
+14:51:13.8 |
HIP 19781 |
17.05 |
| 2026-06-19 12:00 |
04:15:59.52 |
+14:53:52.0 |
HIP 19781 |
27.99 |
| 2026-06-20 00:00 |
04:16:51.59 |
+14:56:29.0 |
HIP 19877 |
31.76 |
| 2026-06-20 12:00 |
04:17:43.61 |
+14:59:04.7 |
HIP 20182 |
31.93 |
| 2026-06-21 00:00 |
04:18:35.60 |
+15:01:39.1 |
HIP 20182 |
24.57 |
| 2026-06-21 12:00 |
04:19:27.54 |
+15:04:12.2 |
HIP 20261 |
16.65 |
| 2026-06-22 00:00 |
04:20:19.45 |
+15:06:44.1 |
HIP 20261 |
4.18 |