| Parameter |
Value |
| Designation |
460P/PANSTARRS |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2016-03-15T12:24:18.552960Z |
| Orbit solution date (soln_date, UTC) |
2023-04-26T18:45:19Z |
| Obs used |
160 |
| NEO |
Yes |
| M1 |
20.900 |
| K1 |
4.500 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2020-10-17T12:28:19.574400Z |
| Discovery magnitude (MPC) |
22.64 G |
| Discovery observatory (MPC) |
F51 · Pan-STARRS 1, Haleakala |
Osculating Elements
| Parameter |
Value |
| Epoch (epoch_cal, TDB) |
2016-04-17.0000000 |
| e |
0.66625296 |
| q (au) |
1.008577 |
| a (au) |
3.021981 |
| i (deg) |
18.918673 |
| Ω (om, deg) |
180.533681 |
| ω (w, deg) |
351.896723 |
| M (ma, deg) |
6.094305 |
Magnitude
Scatter + Global Linear
$$
M_a = (19.928 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
19.928 |
| n |
2.000 |
| gf |
1.000 |
| gb |
-0.826 |
| k |
0.991 |
| 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) |
| 2026-09-20 00:00 |
11:34:44.91 |
+00:57:07.7 |
HIP 56377 |
22.22 |
| 2026-09-20 12:00 |
11:36:53.05 |
+00:49:51.4 |
HIP 56605 |
16.23 |
| 2026-09-21 00:00 |
11:39:01.18 |
+00:42:34.8 |
HIP 56941 |
25.32 |
| 2026-09-21 12:00 |
11:41:09.31 |
+00:35:18.0 |
HIP 57022 |
22.22 |
| 2026-09-22 00:00 |
11:43:17.43 |
+00:28:01.0 |
HIP 57158 |
16.91 |
| 2026-09-22 12:00 |
11:45:25.53 |
+00:20:44.0 |
HIP 57158 |
32.84 |
| 2026-09-23 00:00 |
11:47:33.62 |
+00:13:26.8 |
HIP 57415 |
30.65 |
| 2026-09-23 12:00 |
11:49:41.68 |
+00:06:09.7 |
HIP 57703 |
22.11 |
| 2026-09-24 00:00 |
11:51:49.72 |
-00:01:07.4 |
HIP 57878 |
17.20 |
| 2026-09-24 12:00 |
11:53:57.73 |
-00:08:24.3 |
HIP 58105 |
29.52 |
| 2026-09-25 00:00 |
11:56:05.71 |
-00:15:41.2 |
HIP 58105 |
24.01 |
| 2026-09-25 12:00 |
11:58:13.65 |
-00:22:57.7 |
HIP 58461 |
29.15 |
| 2026-09-26 00:00 |
12:00:21.55 |
-00:30:14.1 |
HIP 58639 |
18.21 |
| 2026-09-26 12:00 |
12:02:29.41 |
-00:37:30.1 |
HIP 58639 |
21.32 |
| 2026-09-27 00:00 |
12:04:37.22 |
-00:44:45.7 |
HIP 58800 |
16.48 |
| 2026-09-27 12:00 |
12:06:44.99 |
-00:52:00.9 |
HIP 59102 |
15.68 |
| 2026-09-28 00:00 |
12:08:52.69 |
-00:59:15.6 |
HIP 59198 |
31.23 |
| 2026-09-28 12:00 |
12:11:00.34 |
-01:06:29.8 |
HIP 59491 |
15.39 |
| 2026-09-29 00:00 |
12:13:07.93 |
-01:13:43.5 |
HIP 59621 |
7.09 |
| 2026-09-29 12:00 |
12:15:15.46 |
-01:20:56.5 |
HIP 59732 |
4.08 |
| 2026-09-30 00:00 |
12:17:22.92 |
-01:28:08.8 |
HIP 59979 |
23.51 |
| 2026-09-30 12:00 |
12:19:30.30 |
-01:35:20.3 |
HIP 59979 |
26.00 |
| 2026-10-01 00:00 |
12:21:37.62 |
-01:42:31.1 |
HIP 60410 |
26.46 |
| 2026-10-01 12:00 |
12:23:44.85 |
-01:49:41.0 |
HIP 60410 |
9.87 |
| 2026-10-02 00:00 |
12:25:52.00 |
-01:56:50.1 |
HIP 60625 |
12.97 |
| 2026-10-02 12:00 |
12:27:59.07 |
-02:03:58.2 |
HIP 60806 |
19.38 |
| 2026-10-03 00:00 |
12:30:06.05 |
-02:11:05.3 |
HIP 61018 |
14.92 |
| 2026-10-03 12:00 |
12:32:12.94 |
-02:18:11.3 |
HIP 61245 |
12.50 |
| 2026-10-04 00:00 |
12:34:19.73 |
-02:25:16.3 |
HIP 61245 |
20.73 |
| 2026-10-04 12:00 |
12:36:26.42 |
-02:32:20.1 |
HIP 61578 |
16.47 |
| 2026-10-05 00:00 |
12:38:33.01 |
-02:39:22.7 |
HIP 61578 |
29.45 |
| 2026-10-05 12:00 |
12:40:39.50 |
-02:46:24.0 |
HIP 61953 |
17.66 |
| 2026-10-06 00:00 |
12:42:45.87 |
-02:53:24.1 |
HIP 61953 |
16.27 |
| 2026-10-06 12:00 |
12:44:52.13 |
-03:00:22.8 |
HIP 62160 |
7.44 |
| 2026-10-07 00:00 |
12:46:58.28 |
-03:07:20.1 |
HIP 62160 |
39.59 |
| 2026-10-07 12:00 |
12:49:04.30 |
-03:14:15.9 |
HIP 62567 |
27.74 |
| 2026-10-08 00:00 |
12:51:10.21 |
-03:21:10.2 |
HIP 62688 |
22.24 |
| 2026-10-08 12:00 |
12:53:15.98 |
-03:28:03.0 |
HIP 62875 |
5.27 |
| 2026-10-09 00:00 |
12:55:21.63 |
-03:34:54.2 |
HIP 63099 |
5.18 |
| 2026-10-09 12:00 |
12:57:27.14 |
-03:41:43.7 |
HIP 63348 |
22.89 |
| 2026-10-10 00:00 |
12:59:32.51 |
-03:48:31.5 |
HIP 63414 |
1.77 |
| 2026-10-10 12:00 |
13:01:37.74 |
-03:55:17.5 |
HIP 63414 |
30.21 |
| 2026-10-11 00:00 |
13:03:42.83 |
-04:02:01.8 |
HIP 63750 |
22.44 |