| Parameter |
Value |
| Designation |
P/2024 K1 (PANSTARRS) |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2024-04-24T19:33:39.119040Z |
| Orbit solution date (soln_date, UTC) |
2025-01-14T17:42:19Z |
| Obs used |
36 |
| NEO |
- |
| M1 |
13.300 |
| K1 |
10.000 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2024-05-30T10:02:35.894400Z |
| Discovery magnitude (MPC) |
20.79 w |
| Discovery observatory (MPC) |
F51 · Pan-STARRS 1, Haleakala |
Osculating Elements
| Parameter |
Value |
| Epoch (epoch_cal, TDB) |
2024-06-02.0000000 |
| e |
0.49069432 |
| q (au) |
3.482639 |
| a (au) |
6.838013 |
| i (deg) |
1.820532 |
| Ω (om, deg) |
251.623065 |
| ω (w, deg) |
349.434539 |
| M (ma, deg) |
2.104755 |
Magnitude
Scatter + Global Linear
$$
M_a = (20.000 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
20.000 |
| n |
2.000 |
| gf |
1.000 |
| gb |
-0.901 |
| k |
0.980 |
| 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) |
| 2026-06-01 00:00 |
23:20:14.34 |
-02:19:54.5 |
HIP 115294 |
14.36 |
| 2026-06-01 12:00 |
23:20:24.35 |
-02:18:40.9 |
HIP 115294 |
13.37 |
| 2026-06-02 00:00 |
23:20:34.21 |
-02:17:28.1 |
HIP 115294 |
12.92 |
| 2026-06-02 12:00 |
23:20:43.94 |
-02:16:16.1 |
HIP 115294 |
13.05 |
| 2026-06-03 00:00 |
23:20:53.54 |
-02:15:05.0 |
HIP 115294 |
13.71 |
| 2026-06-03 12:00 |
23:21:02.99 |
-02:13:54.7 |
HIP 115294 |
14.82 |
| 2026-06-04 00:00 |
23:21:12.31 |
-02:12:45.2 |
HIP 115294 |
16.26 |
| 2026-06-04 12:00 |
23:21:21.49 |
-02:11:36.6 |
HIP 115294 |
17.93 |
| 2026-06-05 00:00 |
23:21:30.52 |
-02:10:28.9 |
HIP 115294 |
19.78 |
| 2026-06-05 12:00 |
23:21:39.42 |
-02:09:22.0 |
HIP 115294 |
21.73 |
| 2026-06-06 00:00 |
23:21:48.18 |
-02:08:16.0 |
HIP 115294 |
23.75 |
| 2026-06-06 12:00 |
23:21:56.79 |
-02:07:10.8 |
HIP 115294 |
25.81 |
| 2026-06-07 00:00 |
23:22:05.27 |
-02:06:06.5 |
HIP 115294 |
27.90 |
| 2026-06-07 12:00 |
23:22:13.60 |
-02:05:03.1 |
HIP 115294 |
29.99 |
| 2026-06-08 00:00 |
23:22:21.78 |
-02:04:00.6 |
HIP 115294 |
32.08 |
| 2026-06-08 12:00 |
23:22:29.83 |
-02:02:59.0 |
HIP 115302 |
33.60 |
| 2026-06-09 00:00 |
23:22:37.73 |
-02:01:58.3 |
HIP 115302 |
34.01 |
| 2026-06-09 12:00 |
23:22:45.48 |
-02:00:58.4 |
HIP 115595 |
32.36 |
| 2026-06-10 00:00 |
23:22:53.09 |
-01:59:59.5 |
HIP 115595 |
30.48 |
| 2026-06-10 12:00 |
23:23:00.55 |
-01:59:01.5 |
HIP 115572 |
28.55 |
| 2026-06-11 00:00 |
23:23:07.87 |
-01:58:04.3 |
HIP 115572 |
26.49 |
| 2026-06-11 12:00 |
23:23:15.04 |
-01:57:08.1 |
HIP 115572 |
24.47 |
| 2026-06-12 00:00 |
23:23:22.06 |
-01:56:12.8 |
HIP 115572 |
22.49 |
| 2026-06-12 12:00 |
23:23:28.94 |
-01:55:18.5 |
HIP 115572 |
20.55 |
| 2026-06-13 00:00 |
23:23:35.66 |
-01:54:25.1 |
HIP 115572 |
18.66 |
| 2026-06-13 12:00 |
23:23:42.24 |
-01:53:32.6 |
HIP 115572 |
16.80 |
| 2026-06-14 00:00 |
23:23:48.67 |
-01:52:41.0 |
HIP 115572 |
14.99 |
| 2026-06-14 12:00 |
23:23:54.94 |
-01:51:50.4 |
HIP 115572 |
13.21 |
| 2026-06-15 00:00 |
23:24:01.07 |
-01:51:00.7 |
HIP 115572 |
11.48 |
| 2026-06-15 12:00 |
23:24:07.04 |
-01:50:12.0 |
HIP 115572 |
9.79 |
| 2026-06-16 00:00 |
23:24:12.86 |
-01:49:24.2 |
HIP 115572 |
8.15 |
| 2026-06-16 12:00 |
23:24:18.54 |
-01:48:37.4 |
HIP 115572 |
6.55 |
| 2026-06-17 00:00 |
23:24:24.05 |
-01:47:51.5 |
HIP 115572 |
5.01 |
| 2026-06-17 12:00 |
23:24:29.42 |
-01:47:06.7 |
HIP 115572 |
3.53 |
| 2026-06-18 00:00 |
23:24:34.64 |
-01:46:22.7 |
HIP 115572 |
2.17 |
| 2026-06-18 12:00 |
23:24:39.70 |
-01:45:39.8 |
HIP 115572 |
1.20 |
| 2026-06-19 00:00 |
23:24:44.60 |
-01:44:57.8 |
HIP 115572 |
1.52 |
| 2026-06-19 12:00 |
23:24:49.36 |
-01:44:16.7 |
HIP 115572 |
2.63 |
| 2026-06-20 00:00 |
23:24:53.96 |
-01:43:36.7 |
HIP 115572 |
3.87 |
| 2026-06-20 12:00 |
23:24:58.41 |
-01:42:57.6 |
HIP 115572 |
5.12 |
| 2026-06-21 00:00 |
23:25:02.70 |
-01:42:19.5 |
HIP 115572 |
6.34 |
| 2026-06-21 12:00 |
23:25:06.84 |
-01:41:42.4 |
HIP 115572 |
7.52 |
| 2026-06-22 00:00 |
23:25:10.82 |
-01:41:06.3 |
HIP 115572 |
8.67 |