460P/PANSTARRS
| 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) |
| 2026-02-03 00:00 |
01:54:16.51 |
-02:23:41.5 |
HIP 8720 |
39.93 |
| 2026-02-03 12:00 |
01:54:38.36 |
-02:20:38.4 |
HIP 8720 |
46.12 |
| 2026-02-04 00:00 |
01:55:00.48 |
-02:17:34.3 |
HIP 9155 |
45.39 |
| 2026-02-04 12:00 |
01:55:22.86 |
-02:14:29.2 |
HIP 9155 |
39.23 |
| 2026-02-05 00:00 |
01:55:45.51 |
-02:11:23.0 |
HIP 9155 |
33.08 |
| 2026-02-05 12:00 |
01:56:08.42 |
-02:08:15.9 |
HIP 9155 |
27.01 |
| 2026-02-06 00:00 |
01:56:31.59 |
-02:05:07.8 |
HIP 9155 |
21.14 |
| 2026-02-06 12:00 |
01:56:55.03 |
-02:01:58.7 |
HIP 9155 |
15.78 |
| 2026-02-07 00:00 |
01:57:18.72 |
-01:58:48.7 |
HIP 9165 |
11.22 |
| 2026-02-07 12:00 |
01:57:42.68 |
-01:55:37.8 |
HIP 9165 |
8.97 |
| 2026-02-08 00:00 |
01:58:06.89 |
-01:52:25.9 |
HIP 9165 |
11.30 |
| 2026-02-08 12:00 |
01:58:31.36 |
-01:49:13.0 |
HIP 9165 |
16.43 |
| 2026-02-09 00:00 |
01:58:56.09 |
-01:45:59.3 |
HIP 9165 |
22.58 |
| 2026-02-09 12:00 |
01:59:21.07 |
-01:42:44.7 |
HIP 9165 |
29.16 |
| 2026-02-10 00:00 |
01:59:46.30 |
-01:39:29.2 |
HIP 9395 |
35.39 |
| 2026-02-10 12:00 |
02:00:11.79 |
-01:36:12.8 |
HIP 9395 |
30.09 |
| 2026-02-11 00:00 |
02:00:37.54 |
-01:32:55.6 |
HIP 9395 |
25.70 |
| 2026-02-11 12:00 |
02:01:03.53 |
-01:29:37.5 |
HIP 9395 |
22.79 |
| 2026-02-12 00:00 |
02:01:29.78 |
-01:26:18.6 |
HIP 9545 |
20.87 |
| 2026-02-12 12:00 |
02:01:56.27 |
-01:22:58.9 |
HIP 9545 |
18.20 |
| 2026-02-13 00:00 |
02:02:23.02 |
-01:19:38.3 |
HIP 9545 |
18.35 |
| 2026-02-13 12:00 |
02:02:50.01 |
-01:16:17.0 |
HIP 9591 |
13.55 |
| 2026-02-14 00:00 |
02:03:17.25 |
-01:12:54.9 |
HIP 9591 |
7.83 |
| 2026-02-14 12:00 |
02:03:44.74 |
-01:09:32.0 |
HIP 9591 |
7.41 |
| 2026-02-15 00:00 |
02:04:12.47 |
-01:06:08.4 |
HIP 9591 |
12.93 |
| 2026-02-15 12:00 |
02:04:40.44 |
-01:02:44.0 |
HIP 9733 |
9.46 |
| 2026-02-16 00:00 |
02:05:08.66 |
-00:59:18.9 |
HIP 9733 |
1.69 |
| 2026-02-16 12:00 |
02:05:37.13 |
-00:55:53.0 |
HIP 9733 |
6.32 |
| 2026-02-17 00:00 |
02:06:05.83 |
-00:52:26.5 |
HIP 9733 |
14.26 |
| 2026-02-17 12:00 |
02:06:34.77 |
-00:48:59.2 |
HIP 9911 |
19.13 |
| 2026-02-18 00:00 |
02:07:03.95 |
-00:45:31.3 |
HIP 9911 |
11.43 |
| 2026-02-18 12:00 |
02:07:33.38 |
-00:42:02.7 |
HIP 9911 |
5.06 |
| 2026-02-19 00:00 |
02:08:03.04 |
-00:38:33.5 |
HIP 9911 |
7.32 |
| 2026-02-19 12:00 |
02:08:32.93 |
-00:35:03.6 |
HIP 9976 |
10.00 |
| 2026-02-20 00:00 |
02:09:03.06 |
-00:31:33.1 |
HIP 9976 |
10.99 |
| 2026-02-20 12:00 |
02:09:33.43 |
-00:28:02.0 |
HIP 9989 |
14.87 |
| 2026-02-21 00:00 |
02:10:04.03 |
-00:24:30.2 |
HIP 10142 |
15.72 |
| 2026-02-21 12:00 |
02:10:34.86 |
-00:20:57.9 |
HIP 10142 |
18.15 |
| 2026-02-22 00:00 |
02:11:05.92 |
-00:17:25.0 |
HIP 10142 |
23.59 |
| 2026-02-22 12:00 |
02:11:37.21 |
-00:13:51.6 |
HIP 10244 |
27.33 |
| 2026-02-23 00:00 |
02:12:08.74 |
-00:10:17.5 |
HIP 10244 |
24.49 |
| 2026-02-23 12:00 |
02:12:40.49 |
-00:06:43.0 |
HIP 10244 |
24.58 |
| 2026-02-24 00:00 |
02:13:12.46 |
-00:03:07.9 |
HIP 10244 |
27.60 |