| Parameter |
Value |
| Designation |
86P/Wild 3 |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2015-04-03T11:38:43.241280Z |
| Orbit solution date (soln_date, UTC) |
2022-08-29T12:04:30Z |
| Obs used |
32 |
| NEO |
- |
| M1 |
17.200 |
| K1 |
4.500 |
| PC |
- |
Osculating Elements
| Parameter |
Value |
| Epoch (epoch_cal, TDB) |
2016-10-22.0000000 |
| e |
0.37219132 |
| q (au) |
2.263511 |
| a (au) |
3.605416 |
| i (deg) |
15.472064 |
| Ω (om, deg) |
72.394196 |
| ω (w, deg) |
179.186736 |
| M (ma, deg) |
81.704924 |
Magnitude
Scatter + Global Linear
$$
M_a = (15.628 + 2.043\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
15.628 |
| n |
2.043 |
| gf |
0.999 |
| gb |
-0.500 |
| 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) |
| 2026-07-29 00:00 |
07:03:53.40 |
+28:42:28.1 |
HIP 33923 |
23.76 |
| 2026-07-29 12:00 |
07:04:24.62 |
+28:42:22.0 |
HIP 33923 |
29.85 |
| 2026-07-30 00:00 |
07:04:55.81 |
+28:42:15.8 |
HIP 34264 |
34.89 |
| 2026-07-30 12:00 |
07:05:26.96 |
+28:42:09.5 |
HIP 34264 |
32.12 |
| 2026-07-31 00:00 |
07:05:58.08 |
+28:42:03.1 |
HIP 34264 |
30.66 |
| 2026-07-31 12:00 |
07:06:29.17 |
+28:41:56.7 |
HIP 34304 |
29.26 |
| 2026-08-01 00:00 |
07:07:00.23 |
+28:41:50.1 |
HIP 34304 |
29.14 |
| 2026-08-01 12:00 |
07:07:31.25 |
+28:41:43.5 |
HIP 34515 |
26.04 |
| 2026-08-02 00:00 |
07:08:02.24 |
+28:41:36.8 |
HIP 34515 |
21.06 |
| 2026-08-02 12:00 |
07:08:33.20 |
+28:41:30.0 |
HIP 34515 |
17.35 |
| 2026-08-03 00:00 |
07:09:04.12 |
+28:41:23.2 |
HIP 34515 |
15.83 |
| 2026-08-03 12:00 |
07:09:35.00 |
+28:41:16.3 |
HIP 34626 |
12.22 |
| 2026-08-04 00:00 |
07:10:05.85 |
+28:41:09.3 |
HIP 34626 |
7.56 |
| 2026-08-04 12:00 |
07:10:36.66 |
+28:41:02.3 |
HIP 34626 |
7.51 |
| 2026-08-05 00:00 |
07:11:07.43 |
+28:40:55.2 |
HIP 34626 |
12.12 |
| 2026-08-05 12:00 |
07:11:38.17 |
+28:40:48.1 |
HIP 34846 |
17.34 |
| 2026-08-06 00:00 |
07:12:08.86 |
+28:40:40.9 |
HIP 34846 |
12.69 |
| 2026-08-06 12:00 |
07:12:39.51 |
+28:40:33.7 |
HIP 34846 |
10.60 |
| 2026-08-07 00:00 |
07:13:10.12 |
+28:40:26.4 |
HIP 34846 |
12.41 |
| 2026-08-07 12:00 |
07:13:40.69 |
+28:40:19.2 |
HIP 34957 |
7.85 |
| 2026-08-08 00:00 |
07:14:11.22 |
+28:40:11.8 |
HIP 34957 |
7.30 |
| 2026-08-08 12:00 |
07:14:41.70 |
+28:40:04.5 |
HIP 34957 |
11.61 |
| 2026-08-09 00:00 |
07:15:12.14 |
+28:39:57.2 |
HIP 35022 |
15.31 |
| 2026-08-09 12:00 |
07:15:42.54 |
+28:39:49.8 |
HIP 35022 |
19.31 |
| 2026-08-10 00:00 |
07:16:12.88 |
+28:39:42.4 |
HIP 35022 |
24.50 |
| 2026-08-10 12:00 |
07:16:43.19 |
+28:39:35.0 |
HIP 35336 |
19.26 |
| 2026-08-11 00:00 |
07:17:13.44 |
+28:39:27.6 |
HIP 35336 |
14.00 |
| 2026-08-11 12:00 |
07:17:43.64 |
+28:39:20.2 |
HIP 35336 |
10.46 |
| 2026-08-12 00:00 |
07:18:13.80 |
+28:39:12.8 |
HIP 35336 |
10.53 |
| 2026-08-12 12:00 |
07:18:43.90 |
+28:39:05.5 |
HIP 35336 |
14.13 |
| 2026-08-13 00:00 |
07:19:13.95 |
+28:38:58.1 |
HIP 35336 |
19.38 |
| 2026-08-13 12:00 |
07:19:43.95 |
+28:38:50.8 |
HIP 35336 |
25.26 |
| 2026-08-14 00:00 |
07:20:13.90 |
+28:38:43.5 |
HIP 35336 |
31.41 |
| 2026-08-14 12:00 |
07:20:43.79 |
+28:38:36.2 |
HIP 35565 |
31.61 |
| 2026-08-15 00:00 |
07:21:13.63 |
+28:38:28.9 |
HIP 35836 |
28.86 |
| 2026-08-15 12:00 |
07:21:43.41 |
+28:38:21.7 |
HIP 35836 |
22.44 |
| 2026-08-16 00:00 |
07:22:13.13 |
+28:38:14.6 |
HIP 35836 |
16.12 |
| 2026-08-16 12:00 |
07:22:42.80 |
+28:38:07.5 |
HIP 35836 |
10.06 |
| 2026-08-17 00:00 |
07:23:12.41 |
+28:38:00.4 |
HIP 35836 |
5.25 |
| 2026-08-17 12:00 |
07:23:41.96 |
+28:37:53.5 |
HIP 35836 |
6.17 |
| 2026-08-18 00:00 |
07:24:11.45 |
+28:37:46.5 |
HIP 35836 |
11.50 |
| 2026-08-18 12:00 |
07:24:40.88 |
+28:37:39.7 |
HIP 35836 |
17.60 |
| 2026-08-19 00:00 |
07:25:10.25 |
+28:37:32.9 |
HIP 35836 |
23.88 |