| Parameter |
Value |
| Designation |
248P/Gibbs |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2011-02-05T10:57:25.790400Z |
| Orbit solution date (soln_date, UTC) |
2026-04-14T13:42:33Z |
| Obs used |
345 |
| NEO |
- |
| M1 |
16.000 |
| K1 |
4.500 |
| PC |
- |
Osculating Elements
| Parameter |
Value |
| Epoch (epoch_cal, TDB) |
2016-06-27.0000000 |
| e |
0.63834584 |
| q (au) |
2.165430 |
| a (au) |
5.987571 |
| i (deg) |
6.354176 |
| Ω (om, deg) |
207.784271 |
| ω (w, deg) |
210.161843 |
| M (ma, deg) |
132.425937 |
Magnitude
Scatter + Global Linear
$$
M_a = (15.555 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
15.555 |
| n |
2.000 |
| gf |
1.000 |
| gb |
-0.732 |
| k |
0.994 |
| 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 |
08:10:49.66 |
+14:45:54.0 |
HIP 40058 |
8.43 |
| 2026-06-01 12:00 |
08:11:31.62 |
+14:44:14.4 |
HIP 40058 |
10.22 |
| 2026-06-02 00:00 |
08:12:13.57 |
+14:42:34.0 |
HIP 40194 |
9.20 |
| 2026-06-02 12:00 |
08:12:55.53 |
+14:40:52.6 |
HIP 40194 |
7.18 |
| 2026-06-03 00:00 |
08:13:37.49 |
+14:39:10.3 |
HIP 40194 |
15.17 |
| 2026-06-03 12:00 |
08:14:19.46 |
+14:37:27.1 |
HIP 40194 |
24.91 |
| 2026-06-04 00:00 |
08:15:01.43 |
+14:35:43.1 |
HIP 40525 |
24.09 |
| 2026-06-04 12:00 |
08:15:43.40 |
+14:33:58.1 |
HIP 40525 |
14.58 |
| 2026-06-05 00:00 |
08:16:25.37 |
+14:32:12.3 |
HIP 40525 |
7.58 |
| 2026-06-05 12:00 |
08:17:07.34 |
+14:30:25.6 |
HIP 40525 |
10.71 |
| 2026-06-06 00:00 |
08:17:49.31 |
+14:28:38.1 |
HIP 40719 |
17.70 |
| 2026-06-06 12:00 |
08:18:31.28 |
+14:26:49.6 |
HIP 40719 |
10.64 |
| 2026-06-07 00:00 |
08:19:13.26 |
+14:25:00.3 |
HIP 40719 |
11.22 |
| 2026-06-07 12:00 |
08:19:55.23 |
+14:23:10.1 |
HIP 40761 |
15.06 |
| 2026-06-08 00:00 |
08:20:37.19 |
+14:21:19.1 |
HIP 40982 |
17.39 |
| 2026-06-08 12:00 |
08:21:19.16 |
+14:19:27.2 |
HIP 40982 |
7.10 |
| 2026-06-09 00:00 |
08:22:01.12 |
+14:17:34.5 |
HIP 40982 |
3.46 |
| 2026-06-09 12:00 |
08:22:43.08 |
+14:15:40.8 |
HIP 40982 |
13.69 |
| 2026-06-10 00:00 |
08:23:25.04 |
+14:13:46.4 |
HIP 41197 |
15.80 |
| 2026-06-10 12:00 |
08:24:06.99 |
+14:11:51.1 |
HIP 41197 |
6.37 |
| 2026-06-11 00:00 |
08:24:48.94 |
+14:09:54.9 |
HIP 41197 |
6.77 |
| 2026-06-11 12:00 |
08:25:30.88 |
+14:07:57.9 |
HIP 41197 |
16.29 |
| 2026-06-12 00:00 |
08:26:12.82 |
+14:06:00.1 |
HIP 41197 |
26.44 |
| 2026-06-12 12:00 |
08:26:54.75 |
+14:04:01.4 |
HIP 41578 |
26.33 |
| 2026-06-13 00:00 |
08:27:36.68 |
+14:02:01.9 |
HIP 41578 |
18.14 |
| 2026-06-13 12:00 |
08:28:18.59 |
+14:00:01.6 |
HIP 41578 |
13.42 |
| 2026-06-14 00:00 |
08:29:00.50 |
+13:58:00.5 |
HIP 41578 |
15.68 |
| 2026-06-14 12:00 |
08:29:42.40 |
+13:55:58.5 |
HIP 41578 |
22.96 |
| 2026-06-15 00:00 |
08:30:24.29 |
+13:53:55.7 |
HIP 41578 |
31.99 |
| 2026-06-15 12:00 |
08:31:06.17 |
+13:51:52.1 |
HIP 41749 |
34.26 |
| 2026-06-16 00:00 |
08:31:48.04 |
+13:49:47.7 |
HIP 41997 |
31.25 |
| 2026-06-16 12:00 |
08:32:29.89 |
+13:47:42.5 |
HIP 41997 |
21.86 |
| 2026-06-17 00:00 |
08:33:11.74 |
+13:45:36.5 |
HIP 41997 |
13.94 |
| 2026-06-17 12:00 |
08:33:53.57 |
+13:43:29.7 |
HIP 41997 |
11.23 |
| 2026-06-18 00:00 |
08:34:35.39 |
+13:41:22.1 |
HIP 41997 |
16.52 |
| 2026-06-18 12:00 |
08:35:17.19 |
+13:39:13.7 |
HIP 42193 |
15.02 |
| 2026-06-19 00:00 |
08:35:58.98 |
+13:37:04.5 |
HIP 42195 |
9.71 |
| 2026-06-19 12:00 |
08:36:40.75 |
+13:34:54.6 |
HIP 42195 |
13.10 |
| 2026-06-20 00:00 |
08:37:22.50 |
+13:32:43.9 |
HIP 42195 |
21.55 |
| 2026-06-20 12:00 |
08:38:04.24 |
+13:30:32.5 |
HIP 42195 |
31.19 |
| 2026-06-21 00:00 |
08:38:45.96 |
+13:28:20.2 |
HIP 42563 |
26.69 |
| 2026-06-21 12:00 |
08:39:27.67 |
+13:26:07.3 |
HIP 42563 |
17.64 |
| 2026-06-22 00:00 |
08:40:09.35 |
+13:23:53.6 |
HIP 42563 |
11.21 |