313P/Gibbs
| 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
$$
M_a = (19.384 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
19.384 |
| 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) |
| 2026-02-03 00:00 |
00:19:07.03 |
-07:41:09.4 |
HIP 1443 |
19.58 |
| 2026-02-03 12:00 |
00:19:55.56 |
-07:34:55.7 |
HIP 1573 |
22.02 |
| 2026-02-04 00:00 |
00:20:44.15 |
-07:28:41.9 |
HIP 1573 |
22.70 |
| 2026-02-04 12:00 |
00:21:32.79 |
-07:22:28.0 |
HIP 1573 |
30.23 |
| 2026-02-05 00:00 |
00:22:21.48 |
-07:16:14.1 |
HIP 1778 |
37.79 |
| 2026-02-05 12:00 |
00:23:10.22 |
-07:10:00.1 |
HIP 1778 |
32.63 |
| 2026-02-06 00:00 |
00:23:59.01 |
-07:03:46.1 |
HIP 1778 |
32.74 |
| 2026-02-06 12:00 |
00:24:47.86 |
-06:57:32.0 |
HIP 1778 |
38.09 |
| 2026-02-07 00:00 |
00:25:36.75 |
-06:51:17.9 |
HIP 2201 |
39.84 |
| 2026-02-07 12:00 |
00:26:25.69 |
-06:45:03.8 |
HIP 2201 |
26.33 |
| 2026-02-08 00:00 |
00:27:14.68 |
-06:38:49.6 |
HIP 2201 |
13.11 |
| 2026-02-08 12:00 |
00:28:03.73 |
-06:32:35.4 |
HIP 2201 |
4.97 |
| 2026-02-09 00:00 |
00:28:52.82 |
-06:26:21.2 |
HIP 2302 |
8.40 |
| 2026-02-09 12:00 |
00:29:41.95 |
-06:20:07.0 |
HIP 2302 |
11.92 |
| 2026-02-10 00:00 |
00:30:31.14 |
-06:13:52.9 |
HIP 2302 |
24.29 |
| 2026-02-10 12:00 |
00:31:20.38 |
-06:07:38.7 |
HIP 2566 |
19.17 |
| 2026-02-11 00:00 |
00:32:09.66 |
-06:01:24.6 |
HIP 2566 |
12.70 |
| 2026-02-11 12:00 |
00:32:58.99 |
-05:55:10.5 |
HIP 2566 |
18.24 |
| 2026-02-12 00:00 |
00:33:48.36 |
-05:48:56.4 |
HIP 2699 |
8.09 |
| 2026-02-12 12:00 |
00:34:37.79 |
-05:42:42.4 |
HIP 2699 |
5.80 |
| 2026-02-13 00:00 |
00:35:27.25 |
-05:36:28.5 |
HIP 2843 |
8.87 |
| 2026-02-13 12:00 |
00:36:16.77 |
-05:30:14.6 |
HIP 2843 |
5.47 |
| 2026-02-14 00:00 |
00:37:06.33 |
-05:24:00.8 |
HIP 2843 |
19.05 |
| 2026-02-14 12:00 |
00:37:55.93 |
-05:17:47.1 |
HIP 2843 |
32.84 |
| 2026-02-15 00:00 |
00:38:45.58 |
-05:11:33.4 |
HIP 2836 |
42.62 |
| 2026-02-15 12:00 |
00:39:35.28 |
-05:05:19.9 |
HIP 3222 |
37.44 |
| 2026-02-16 00:00 |
00:40:25.02 |
-04:59:06.5 |
HIP 3222 |
26.43 |
| 2026-02-16 12:00 |
00:41:14.80 |
-04:52:53.2 |
HIP 3222 |
19.50 |
| 2026-02-17 00:00 |
00:42:04.62 |
-04:46:40.0 |
HIP 3222 |
21.15 |
| 2026-02-17 12:00 |
00:42:54.49 |
-04:40:27.0 |
HIP 3465 |
26.87 |
| 2026-02-18 00:00 |
00:43:44.40 |
-04:34:14.1 |
HIP 3465 |
13.52 |
| 2026-02-18 12:00 |
00:44:34.35 |
-04:28:01.4 |
HIP 3465 |
5.49 |
| 2026-02-19 00:00 |
00:45:24.34 |
-04:21:48.8 |
HIP 3552 |
15.94 |
| 2026-02-19 12:00 |
00:46:14.37 |
-04:15:36.5 |
HIP 3645 |
11.92 |
| 2026-02-20 00:00 |
00:47:04.44 |
-04:09:24.3 |
HIP 3645 |
17.24 |
| 2026-02-20 12:00 |
00:47:54.56 |
-04:03:12.3 |
HIP 3746 |
20.62 |
| 2026-02-21 00:00 |
00:48:44.71 |
-03:57:00.5 |
HIP 3746 |
17.54 |
| 2026-02-21 12:00 |
00:49:34.90 |
-03:50:48.9 |
HIP 3746 |
24.10 |
| 2026-02-22 00:00 |
00:50:25.12 |
-03:44:37.5 |
HIP 4040 |
29.33 |
| 2026-02-22 12:00 |
00:51:15.39 |
-03:38:26.4 |
HIP 4040 |
28.03 |
| 2026-02-23 00:00 |
00:52:05.69 |
-03:32:15.5 |
HIP 4021 |
25.06 |
| 2026-02-23 12:00 |
00:52:56.03 |
-03:26:04.9 |
HIP 4021 |
27.18 |
| 2026-02-24 00:00 |
00:53:46.41 |
-03:19:54.5 |
HIP 4021 |
35.25 |