360P/WISE
| Parameter |
Value |
| Designation |
360P/WISE |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2017-08-18T09:32:32.017920Z |
| Orbit solution date (soln_date, UTC) |
2025-01-02T20:12:57Z |
| Obs used |
208 |
| NEO |
- |
| M1 |
18.500 |
| K1 |
4.500 |
| PC |
- |
Osculating Elements
| Parameter |
Value |
| Epoch (epoch_cal, TDB) |
2018-07-24.0000000 |
| e |
0.49790664 |
| q (au) |
1.860385 |
| a (au) |
3.705258 |
| i (deg) |
24.078046 |
| Ω (om, deg) |
2.227777 |
| ω (w, deg) |
354.137718 |
| M (ma, deg) |
46.929640 |
Magnitude
Scatter + Global Linear
$$
M_a = (17.706 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
17.706 |
| n |
2.000 |
| gf |
1.000 |
| gb |
-0.502 |
| 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
Finding Chart
Ephemeris
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-02-03 00:00 |
08:41:42.29 |
+46:43:04.2 |
HIP 42777 |
17.28 |
| 2026-02-03 12:00 |
08:41:08.47 |
+46:42:36.7 |
HIP 42599 |
16.97 |
| 2026-02-04 00:00 |
08:40:34.79 |
+46:42:06.1 |
HIP 42599 |
16.72 |
| 2026-02-04 12:00 |
08:40:01.26 |
+46:41:32.5 |
HIP 42599 |
18.35 |
| 2026-02-05 00:00 |
08:39:27.89 |
+46:40:55.8 |
HIP 42304 |
21.10 |
| 2026-02-05 12:00 |
08:38:54.69 |
+46:40:16.0 |
HIP 42304 |
16.08 |
| 2026-02-06 00:00 |
08:38:21.66 |
+46:39:33.2 |
HIP 42304 |
11.77 |
| 2026-02-06 12:00 |
08:37:48.81 |
+46:38:47.3 |
HIP 42304 |
9.21 |
| 2026-02-07 00:00 |
08:37:16.14 |
+46:37:58.5 |
HIP 42304 |
9.82 |
| 2026-02-07 12:00 |
08:36:43.67 |
+46:37:06.6 |
HIP 42170 |
10.47 |
| 2026-02-08 00:00 |
08:36:11.40 |
+46:36:11.8 |
HIP 42170 |
7.00 |
| 2026-02-08 12:00 |
08:35:39.33 |
+46:35:14.0 |
HIP 42170 |
7.21 |
| 2026-02-09 00:00 |
08:35:07.48 |
+46:34:13.3 |
HIP 42170 |
10.84 |
| 2026-02-09 12:00 |
08:34:35.85 |
+46:33:09.7 |
HIP 42170 |
15.65 |
| 2026-02-10 00:00 |
08:34:04.44 |
+46:32:03.1 |
HIP 42170 |
20.82 |
| 2026-02-10 12:00 |
08:33:33.27 |
+46:30:53.7 |
HIP 42170 |
26.11 |
| 2026-02-11 00:00 |
08:33:02.33 |
+46:29:41.4 |
HIP 41734 |
28.18 |
| 2026-02-11 12:00 |
08:32:31.64 |
+46:28:26.3 |
HIP 41734 |
22.92 |
| 2026-02-12 00:00 |
08:32:01.19 |
+46:27:08.4 |
HIP 41734 |
17.77 |
| 2026-02-12 12:00 |
08:31:31.01 |
+46:25:47.7 |
HIP 41734 |
12.83 |
| 2026-02-13 00:00 |
08:31:01.08 |
+46:24:24.2 |
HIP 41734 |
8.43 |
| 2026-02-13 12:00 |
08:30:31.43 |
+46:22:58.0 |
HIP 41734 |
5.85 |
| 2026-02-14 00:00 |
08:30:02.04 |
+46:21:29.0 |
HIP 41734 |
7.27 |
| 2026-02-14 12:00 |
08:29:32.94 |
+46:19:57.4 |
HIP 41734 |
11.23 |
| 2026-02-15 00:00 |
08:29:04.11 |
+46:18:23.1 |
HIP 41525 |
10.43 |
| 2026-02-15 12:00 |
08:28:35.58 |
+46:16:46.2 |
HIP 41525 |
5.24 |
| 2026-02-16 00:00 |
08:28:07.34 |
+46:15:06.7 |
HIP 41525 |
0.18 |
| 2026-02-16 12:00 |
08:27:39.40 |
+46:13:24.6 |
HIP 41525 |
5.04 |
| 2026-02-17 00:00 |
08:27:11.76 |
+46:11:39.9 |
HIP 41525 |
10.13 |
| 2026-02-17 12:00 |
08:26:44.43 |
+46:09:52.7 |
HIP 41525 |
15.18 |
| 2026-02-18 00:00 |
08:26:17.42 |
+46:08:03.1 |
HIP 41525 |
20.20 |
| 2026-02-18 12:00 |
08:25:50.72 |
+46:06:10.9 |
HIP 41185 |
18.00 |
| 2026-02-19 00:00 |
08:25:24.34 |
+46:04:16.4 |
HIP 41185 |
13.04 |
| 2026-02-19 12:00 |
08:24:58.28 |
+46:02:19.4 |
HIP 41185 |
8.12 |
| 2026-02-20 00:00 |
08:24:32.56 |
+46:00:20.1 |
HIP 41185 |
3.23 |
| 2026-02-20 12:00 |
08:24:07.16 |
+45:58:18.4 |
HIP 41185 |
1.63 |
| 2026-02-21 00:00 |
08:23:42.11 |
+45:56:14.5 |
HIP 41185 |
6.44 |
| 2026-02-21 12:00 |
08:23:17.39 |
+45:54:08.3 |
HIP 41185 |
11.23 |
| 2026-02-22 00:00 |
08:22:53.02 |
+45:51:59.8 |
HIP 41185 |
15.98 |
| 2026-02-22 12:00 |
08:22:28.99 |
+45:49:49.2 |
HIP 41185 |
20.69 |
| 2026-02-23 00:00 |
08:22:05.32 |
+45:47:36.3 |
HIP 41185 |
25.37 |
| 2026-02-23 12:00 |
08:21:41.99 |
+45:45:21.4 |
HIP 41045 |
25.98 |
| 2026-02-24 00:00 |
08:21:19.02 |
+45:43:04.3 |
HIP 40796 |
23.62 |