| 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) |
| 2026-05-12 00:00 |
08:28:03.82 |
+37:08:34.4 |
HIP 41552 |
8.68 |
| 2026-05-12 12:00 |
08:28:25.06 |
+37:05:05.0 |
HIP 41552 |
4.39 |
| 2026-05-13 00:00 |
08:28:46.44 |
+37:01:35.7 |
HIP 41552 |
4.88 |
| 2026-05-13 12:00 |
08:29:07.96 |
+36:58:06.5 |
HIP 41552 |
9.47 |
| 2026-05-14 00:00 |
08:29:29.62 |
+36:54:37.5 |
HIP 41691 |
11.01 |
| 2026-05-14 12:00 |
08:29:51.42 |
+36:51:08.6 |
HIP 41691 |
13.15 |
| 2026-05-15 00:00 |
08:30:13.34 |
+36:47:39.8 |
HIP 41691 |
16.94 |
| 2026-05-15 12:00 |
08:30:35.40 |
+36:44:11.2 |
HIP 41691 |
21.54 |
| 2026-05-16 00:00 |
08:30:57.60 |
+36:40:42.7 |
HIP 41845 |
21.34 |
| 2026-05-16 12:00 |
08:31:19.92 |
+36:37:14.4 |
HIP 41845 |
16.09 |
| 2026-05-17 00:00 |
08:31:42.36 |
+36:33:46.2 |
HIP 41845 |
11.26 |
| 2026-05-17 12:00 |
08:32:04.94 |
+36:30:18.1 |
HIP 41845 |
7.73 |
| 2026-05-18 00:00 |
08:32:27.64 |
+36:26:50.2 |
HIP 41845 |
7.63 |
| 2026-05-18 12:00 |
08:32:50.46 |
+36:23:22.4 |
HIP 41975 |
6.91 |
| 2026-05-19 00:00 |
08:33:13.40 |
+36:19:54.8 |
HIP 41975 |
6.50 |
| 2026-05-19 12:00 |
08:33:36.47 |
+36:16:27.3 |
HIP 41975 |
10.17 |
| 2026-05-20 00:00 |
08:33:59.65 |
+36:13:00.0 |
HIP 42090 |
15.10 |
| 2026-05-20 12:00 |
08:34:22.94 |
+36:09:32.7 |
HIP 42090 |
16.20 |
| 2026-05-21 00:00 |
08:34:46.36 |
+36:06:05.7 |
HIP 42090 |
19.10 |
| 2026-05-21 12:00 |
08:35:09.88 |
+36:02:38.7 |
HIP 42223 |
17.77 |
| 2026-05-22 00:00 |
08:35:33.52 |
+35:59:12.0 |
HIP 42223 |
12.16 |
| 2026-05-22 12:00 |
08:35:57.27 |
+35:55:45.3 |
HIP 42223 |
6.99 |
| 2026-05-23 00:00 |
08:36:21.12 |
+35:52:18.9 |
HIP 42223 |
4.45 |
| 2026-05-23 12:00 |
08:36:45.08 |
+35:48:52.5 |
HIP 42223 |
7.81 |
| 2026-05-24 00:00 |
08:37:09.15 |
+35:45:26.3 |
HIP 42223 |
13.17 |
| 2026-05-24 12:00 |
08:37:33.32 |
+35:42:00.3 |
HIP 42223 |
18.91 |
| 2026-05-25 00:00 |
08:37:57.59 |
+35:38:34.4 |
HIP 42470 |
18.85 |
| 2026-05-25 12:00 |
08:38:21.97 |
+35:35:08.7 |
HIP 42465 |
13.87 |
| 2026-05-26 00:00 |
08:38:46.44 |
+35:31:43.1 |
HIP 42465 |
8.33 |
| 2026-05-26 12:00 |
08:39:11.01 |
+35:28:17.6 |
HIP 42465 |
4.40 |
| 2026-05-27 00:00 |
08:39:35.68 |
+35:24:52.3 |
HIP 42465 |
6.54 |
| 2026-05-27 12:00 |
08:40:00.45 |
+35:21:27.1 |
HIP 42465 |
11.84 |
| 2026-05-28 00:00 |
08:40:25.31 |
+35:18:02.1 |
HIP 42465 |
17.68 |
| 2026-05-28 12:00 |
08:40:50.26 |
+35:14:37.2 |
HIP 42465 |
23.67 |
| 2026-05-29 00:00 |
08:41:15.30 |
+35:11:12.5 |
HIP 42583 |
22.88 |
| 2026-05-29 12:00 |
08:41:40.43 |
+35:07:47.9 |
HIP 42583 |
21.84 |
| 2026-05-30 00:00 |
08:42:05.66 |
+35:04:23.4 |
HIP 42583 |
22.54 |
| 2026-05-30 12:00 |
08:42:30.97 |
+35:00:59.1 |
HIP 42856 |
18.35 |
| 2026-05-31 00:00 |
08:42:56.36 |
+34:57:34.9 |
HIP 42856 |
13.92 |
| 2026-05-31 12:00 |
08:43:21.85 |
+34:54:10.8 |
HIP 42856 |
11.29 |
| 2026-06-01 00:00 |
08:43:47.42 |
+34:50:46.9 |
HIP 42856 |
11.78 |
| 2026-06-01 12:00 |
08:44:13.07 |
+34:47:23.1 |
HIP 42856 |
15.10 |
| 2026-06-02 00:00 |
08:44:38.80 |
+34:43:59.5 |
HIP 42856 |
19.89 |