| Parameter |
Value |
| Designation |
462P/LONEOS-PANSTARRS |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2022-08-02T09:36:57.879360Z |
| Orbit solution date (soln_date, UTC) |
2024-01-26T23:44:19Z |
| Obs used |
182 |
| NEO |
- |
| M1 |
16.600 |
| K1 |
7.500 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2000-07-29T08:45:07.488000Z |
| Discovery magnitude (MPC) |
18.40 R |
| Discovery observatory (MPC) |
699 · Lowell Observatory-LONEOS |
Osculating Elements
| Parameter |
Value |
| Epoch (epoch_cal, TDB) |
2020-10-21.0000000 |
| e |
0.57792407 |
| q (au) |
2.063101 |
| a (au) |
4.887986 |
| i (deg) |
7.027368 |
| Ω (om, deg) |
322.920313 |
| ω (w, deg) |
4.420991 |
| M (ma, deg) |
300.681499 |
Magnitude
Scatter + Global Linear
$$
M_a = (19.639 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
19.639 |
| n |
2.000 |
| gf |
1.000 |
| gb |
-0.700 |
| k |
0.800 |
| 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
Ephemeris
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-07-29 00:00 |
08:53:56.67 |
+18:43:16.0 |
HIP 43540 |
28.71 |
| 2026-07-29 12:00 |
08:54:14.25 |
+18:41:58.0 |
HIP 43540 |
33.06 |
| 2026-07-30 00:00 |
08:54:31.83 |
+18:40:39.8 |
HIP 43540 |
37.42 |
| 2026-07-30 12:00 |
08:54:49.42 |
+18:39:21.6 |
HIP 43540 |
41.78 |
| 2026-07-31 00:00 |
08:55:07.00 |
+18:38:03.4 |
HIP 43540 |
46.14 |
| 2026-07-31 12:00 |
08:55:24.58 |
+18:36:45.0 |
HIP 44056 |
45.06 |
| 2026-08-01 00:00 |
08:55:42.16 |
+18:35:26.6 |
HIP 44056 |
40.72 |
| 2026-08-01 12:00 |
08:55:59.74 |
+18:34:08.1 |
HIP 44056 |
36.39 |
| 2026-08-02 00:00 |
08:56:17.31 |
+18:32:49.5 |
HIP 44056 |
32.07 |
| 2026-08-02 12:00 |
08:56:34.88 |
+18:31:30.9 |
HIP 44056 |
27.77 |
| 2026-08-03 00:00 |
08:56:52.45 |
+18:30:12.2 |
HIP 44056 |
23.49 |
| 2026-08-03 12:00 |
08:57:10.01 |
+18:28:53.5 |
HIP 44056 |
19.25 |
| 2026-08-04 00:00 |
08:57:27.57 |
+18:27:34.7 |
HIP 44056 |
15.08 |
| 2026-08-04 12:00 |
08:57:45.12 |
+18:26:15.8 |
HIP 44056 |
11.06 |
| 2026-08-05 00:00 |
08:58:02.67 |
+18:24:56.8 |
HIP 44056 |
7.44 |
| 2026-08-05 12:00 |
08:58:20.21 |
+18:23:37.9 |
HIP 44056 |
5.15 |
| 2026-08-06 00:00 |
08:58:37.74 |
+18:22:18.8 |
HIP 44056 |
5.99 |
| 2026-08-06 12:00 |
08:58:55.27 |
+18:20:59.8 |
HIP 44056 |
9.12 |
| 2026-08-07 00:00 |
08:59:12.79 |
+18:19:40.6 |
HIP 44126 |
11.59 |
| 2026-08-07 12:00 |
08:59:30.29 |
+18:18:21.5 |
HIP 44126 |
11.26 |
| 2026-08-08 00:00 |
08:59:47.79 |
+18:17:02.2 |
HIP 44126 |
12.54 |
| 2026-08-08 12:00 |
09:00:05.28 |
+18:15:43.0 |
HIP 44126 |
15.02 |
| 2026-08-09 00:00 |
09:00:22.75 |
+18:14:23.7 |
HIP 44126 |
18.22 |
| 2026-08-09 12:00 |
09:00:40.22 |
+18:13:04.4 |
HIP 44126 |
21.82 |
| 2026-08-10 00:00 |
09:00:57.67 |
+18:11:45.0 |
HIP 44126 |
25.66 |
| 2026-08-10 12:00 |
09:01:15.11 |
+18:10:25.7 |
HIP 44126 |
29.63 |
| 2026-08-11 00:00 |
09:01:32.54 |
+18:09:06.3 |
HIP 44126 |
33.70 |
| 2026-08-11 12:00 |
09:01:49.95 |
+18:07:46.9 |
HIP 44529 |
37.24 |
| 2026-08-12 00:00 |
09:02:07.35 |
+18:06:27.4 |
HIP 44529 |
33.63 |
| 2026-08-12 12:00 |
09:02:24.73 |
+18:05:08.0 |
HIP 44529 |
30.21 |
| 2026-08-13 00:00 |
09:02:42.10 |
+18:03:48.5 |
HIP 44529 |
27.06 |
| 2026-08-13 12:00 |
09:02:59.45 |
+18:02:29.1 |
HIP 44529 |
24.28 |
| 2026-08-14 00:00 |
09:03:16.78 |
+18:01:09.6 |
HIP 44529 |
22.00 |
| 2026-08-14 12:00 |
09:03:34.09 |
+17:59:50.1 |
HIP 44529 |
20.40 |
| 2026-08-15 00:00 |
09:03:51.39 |
+17:58:30.7 |
HIP 44529 |
19.64 |
| 2026-08-15 12:00 |
09:04:08.66 |
+17:57:11.2 |
HIP 44529 |
19.82 |
| 2026-08-16 00:00 |
09:04:25.92 |
+17:55:51.8 |
HIP 44529 |
20.90 |
| 2026-08-16 12:00 |
09:04:43.15 |
+17:54:32.3 |
HIP 44529 |
22.76 |
| 2026-08-17 00:00 |
09:05:00.37 |
+17:53:12.9 |
HIP 44529 |
25.22 |
| 2026-08-17 12:00 |
09:05:17.56 |
+17:51:53.5 |
HIP 44529 |
28.12 |
| 2026-08-18 00:00 |
09:05:34.73 |
+17:50:34.1 |
HIP 44637 |
27.28 |
| 2026-08-18 12:00 |
09:05:51.87 |
+17:49:14.8 |
HIP 44637 |
25.88 |
| 2026-08-19 00:00 |
09:06:08.99 |
+17:47:55.4 |
HIP 44637 |
25.14 |