| 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) |
| 2026-05-12 00:00 |
04:16:55.97 |
+09:13:33.1 |
HIP 20068 |
19.09 |
| 2026-05-12 12:00 |
04:18:00.67 |
+09:16:32.1 |
HIP 20068 |
7.67 |
| 2026-05-13 00:00 |
04:19:05.60 |
+09:19:30.1 |
HIP 20165 |
3.61 |
| 2026-05-13 12:00 |
04:20:10.77 |
+09:22:26.9 |
HIP 20189 |
8.46 |
| 2026-05-14 00:00 |
04:21:16.18 |
+09:25:22.7 |
HIP 20281 |
13.65 |
| 2026-05-14 12:00 |
04:22:21.83 |
+09:28:17.4 |
HIP 20457 |
10.04 |
| 2026-05-15 00:00 |
04:23:27.71 |
+09:31:11.0 |
HIP 20522 |
6.91 |
| 2026-05-15 12:00 |
04:24:33.84 |
+09:34:03.5 |
HIP 20522 |
12.17 |
| 2026-05-16 00:00 |
04:25:40.21 |
+09:36:54.8 |
HIP 20672 |
6.60 |
| 2026-05-16 12:00 |
04:26:46.82 |
+09:39:44.9 |
HIP 20734 |
16.26 |
| 2026-05-17 00:00 |
04:27:53.66 |
+09:42:33.9 |
HIP 20831 |
18.30 |
| 2026-05-17 12:00 |
04:29:00.76 |
+09:45:21.7 |
HIP 20941 |
14.36 |
| 2026-05-18 00:00 |
04:30:08.09 |
+09:48:08.4 |
HIP 20941 |
19.38 |
| 2026-05-18 12:00 |
04:31:15.66 |
+09:50:53.8 |
HIP 20985 |
30.72 |
| 2026-05-19 00:00 |
04:32:23.48 |
+09:53:37.9 |
HIP 21308 |
32.04 |
| 2026-05-19 12:00 |
04:33:31.55 |
+09:56:20.9 |
HIP 21308 |
15.15 |
| 2026-05-20 00:00 |
04:34:39.85 |
+09:59:02.5 |
HIP 21308 |
3.09 |
| 2026-05-20 12:00 |
04:35:48.41 |
+10:01:43.0 |
HIP 21402 |
8.25 |
| 2026-05-21 00:00 |
04:36:57.20 |
+10:04:22.1 |
HIP 21402 |
19.90 |
| 2026-05-21 12:00 |
04:38:06.25 |
+10:07:00.0 |
HIP 21663 |
22.10 |
| 2026-05-22 00:00 |
04:39:15.54 |
+10:09:36.5 |
HIP 21663 |
14.61 |
| 2026-05-22 12:00 |
04:40:25.08 |
+10:12:11.7 |
HIP 21710 |
22.40 |
| 2026-05-23 00:00 |
04:41:34.86 |
+10:14:45.5 |
HIP 21890 |
16.62 |
| 2026-05-23 12:00 |
04:42:44.90 |
+10:17:18.1 |
HIP 21890 |
11.48 |
| 2026-05-24 00:00 |
04:43:55.19 |
+10:19:49.2 |
HIP 21890 |
24.43 |
| 2026-05-24 12:00 |
04:45:05.72 |
+10:22:19.0 |
HIP 22129 |
11.23 |
| 2026-05-25 00:00 |
04:46:16.51 |
+10:24:47.4 |
HIP 22129 |
11.43 |
| 2026-05-25 12:00 |
04:47:27.55 |
+10:27:14.4 |
HIP 22258 |
17.10 |
| 2026-05-26 00:00 |
04:48:38.84 |
+10:29:40.0 |
HIP 22351 |
6.06 |
| 2026-05-26 12:00 |
04:49:50.39 |
+10:32:04.2 |
HIP 22475 |
6.32 |
| 2026-05-27 00:00 |
04:51:02.19 |
+10:34:26.9 |
HIP 22475 |
13.09 |
| 2026-05-27 12:00 |
04:52:14.25 |
+10:36:48.2 |
HIP 22475 |
30.67 |
| 2026-05-28 00:00 |
04:53:26.56 |
+10:39:08.0 |
HIP 22845 |
36.92 |
| 2026-05-28 12:00 |
04:54:39.14 |
+10:41:26.3 |
HIP 22893 |
31.17 |
| 2026-05-29 00:00 |
04:55:51.97 |
+10:43:43.1 |
HIP 23035 |
20.52 |
| 2026-05-29 12:00 |
04:57:05.06 |
+10:45:58.4 |
HIP 23035 |
3.29 |
| 2026-05-30 00:00 |
04:58:18.41 |
+10:48:12.1 |
HIP 23035 |
16.04 |
| 2026-05-30 12:00 |
04:59:32.03 |
+10:50:24.3 |
HIP 23303 |
17.88 |
| 2026-05-31 00:00 |
05:00:45.90 |
+10:52:35.0 |
HIP 23303 |
2.37 |
| 2026-05-31 12:00 |
05:02:00.04 |
+10:54:44.1 |
HIP 23485 |
13.07 |
| 2026-06-01 00:00 |
05:03:14.45 |
+10:56:51.6 |
HIP 23485 |
5.39 |
| 2026-06-01 12:00 |
05:04:29.12 |
+10:58:57.5 |
HIP 23544 |
12.82 |
| 2026-06-02 00:00 |
05:05:44.06 |
+11:01:01.7 |
HIP 23770 |
25.31 |