| 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) |
| 2026-03-26 00:00 |
01:45:06.72 |
+02:38:10.0 |
HIP 8173 |
7.99 |
| 2026-03-26 12:00 |
01:45:58.89 |
+02:43:51.3 |
HIP 8173 |
19.18 |
| 2026-03-27 00:00 |
01:46:51.09 |
+02:49:31.9 |
HIP 8392 |
21.99 |
| 2026-03-27 12:00 |
01:47:43.30 |
+02:55:11.7 |
HIP 8392 |
14.77 |
| 2026-03-28 00:00 |
01:48:35.54 |
+03:00:50.8 |
HIP 8392 |
18.89 |
| 2026-03-28 12:00 |
01:49:27.80 |
+03:06:29.3 |
HIP 8392 |
29.99 |
| 2026-03-29 00:00 |
01:50:20.08 |
+03:12:07.0 |
HIP 8651 |
33.12 |
| 2026-03-29 12:00 |
01:51:12.38 |
+03:17:43.9 |
HIP 8651 |
34.16 |
| 2026-03-30 00:00 |
01:52:04.70 |
+03:23:20.1 |
HIP 8833 |
25.21 |
| 2026-03-30 12:00 |
01:52:57.04 |
+03:28:55.6 |
HIP 8833 |
19.86 |
| 2026-03-31 00:00 |
01:53:49.40 |
+03:34:30.3 |
HIP 8833 |
23.60 |
| 2026-03-31 12:00 |
01:54:41.78 |
+03:40:04.3 |
HIP 8971 |
14.63 |
| 2026-04-01 00:00 |
01:55:34.18 |
+03:45:37.6 |
HIP 8971 |
10.96 |
| 2026-04-01 12:00 |
01:56:26.60 |
+03:51:10.0 |
HIP 8971 |
20.72 |
| 2026-04-02 00:00 |
01:57:19.04 |
+03:56:41.7 |
HIP 9156 |
9.27 |
| 2026-04-02 12:00 |
01:58:11.50 |
+04:02:12.6 |
HIP 9156 |
7.45 |
| 2026-04-03 00:00 |
01:59:03.98 |
+04:07:42.8 |
HIP 9156 |
20.69 |
| 2026-04-03 12:00 |
01:59:56.48 |
+04:13:12.2 |
HIP 9368 |
11.97 |
| 2026-04-04 00:00 |
02:00:49.00 |
+04:18:40.7 |
HIP 9368 |
8.25 |
| 2026-04-04 12:00 |
02:01:41.54 |
+04:24:08.5 |
HIP 9368 |
19.89 |
| 2026-04-05 00:00 |
02:02:34.10 |
+04:29:35.5 |
HIP 9611 |
26.31 |
| 2026-04-05 12:00 |
02:03:26.67 |
+04:35:01.7 |
HIP 9611 |
16.46 |
| 2026-04-06 00:00 |
02:04:19.27 |
+04:40:27.1 |
HIP 9611 |
15.90 |
| 2026-04-06 12:00 |
02:05:11.89 |
+04:45:51.6 |
HIP 9611 |
25.24 |
| 2026-04-07 00:00 |
02:06:04.53 |
+04:51:15.4 |
HIP 9791 |
27.18 |
| 2026-04-07 12:00 |
02:06:57.18 |
+04:56:38.3 |
HIP 9791 |
26.65 |
| 2026-04-08 00:00 |
02:07:49.86 |
+05:02:00.4 |
HIP 9791 |
32.92 |
| 2026-04-08 12:00 |
02:08:42.55 |
+05:07:21.7 |
HIP 10184 |
33.30 |
| 2026-04-09 00:00 |
02:09:35.26 |
+05:12:42.1 |
HIP 10184 |
21.48 |
| 2026-04-09 12:00 |
02:10:27.99 |
+05:18:01.7 |
HIP 10184 |
14.69 |
| 2026-04-10 00:00 |
02:11:20.74 |
+05:23:20.4 |
HIP 10184 |
19.26 |
| 2026-04-10 12:00 |
02:12:13.51 |
+05:28:38.2 |
HIP 10333 |
15.28 |
| 2026-04-11 00:00 |
02:13:06.30 |
+05:33:55.2 |
HIP 10333 |
11.59 |
| 2026-04-11 12:00 |
02:13:59.10 |
+05:39:11.4 |
HIP 10333 |
20.87 |
| 2026-04-12 00:00 |
02:14:51.92 |
+05:44:26.6 |
HIP 10419 |
18.51 |
| 2026-04-12 12:00 |
02:15:44.76 |
+05:49:41.0 |
HIP 10448 |
23.84 |
| 2026-04-13 00:00 |
02:16:37.62 |
+05:54:54.5 |
HIP 10678 |
26.28 |
| 2026-04-13 12:00 |
02:17:30.49 |
+06:00:07.1 |
HIP 10678 |
29.00 |
| 2026-04-14 00:00 |
02:18:23.39 |
+06:05:18.7 |
HIP 10616 |
36.78 |
| 2026-04-14 12:00 |
02:19:16.29 |
+06:10:29.5 |
HIP 10747 |
35.04 |
| 2026-04-15 00:00 |
02:20:09.22 |
+06:15:39.4 |
HIP 10957 |
37.16 |
| 2026-04-15 12:00 |
02:21:02.16 |
+06:20:48.3 |
HIP 11151 |
39.00 |
| 2026-04-16 00:00 |
02:21:55.11 |
+06:25:56.4 |
HIP 11151 |
24.89 |