| Parameter |
Value |
| Designation |
P/2024 X3 (PANSTARRS) |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2024-09-05T18:42:23.279040Z |
| Orbit solution date (soln_date, UTC) |
2026-05-22T14:12:28Z |
| Obs used |
116 |
| NEO |
- |
| M1 |
16.200 |
| K1 |
4.500 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2024-12-08T13:42:54.835200Z |
| Discovery magnitude (MPC) |
21.06 w |
| Discovery observatory (MPC) |
F52 · Pan-STARRS 2, Haleakala |
Osculating Elements
| Parameter |
Value |
| Epoch (epoch_cal, TDB) |
2025-03-13.0000000 |
| e |
0.62624372 |
| q (au) |
2.614119 |
| a (au) |
6.994180 |
| i (deg) |
2.972391 |
| Ω (om, deg) |
113.365383 |
| ω (w, deg) |
352.941893 |
| M (ma, deg) |
10.029193 |
Magnitude
Scatter + Global Linear
$$
M_a = (16.514 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
16.514 |
| n |
2.000 |
| gf |
0.969 |
| gb |
-0.865 |
| k |
0.995 |
| δ90 |
1.000 |
| 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) |
| 2026-07-29 00:00 |
13:47:13.31 |
-08:00:53.2 |
HIP 67333 |
12.08 |
| 2026-07-29 12:00 |
13:47:24.11 |
-08:02:11.0 |
HIP 67333 |
9.42 |
| 2026-07-30 00:00 |
13:47:35.04 |
-08:03:29.4 |
HIP 67333 |
6.98 |
| 2026-07-30 12:00 |
13:47:46.09 |
-08:04:48.4 |
HIP 67333 |
5.16 |
| 2026-07-31 00:00 |
13:47:57.26 |
-08:06:08.0 |
HIP 67333 |
4.80 |
| 2026-07-31 12:00 |
13:48:08.56 |
-08:07:28.1 |
HIP 67333 |
6.20 |
| 2026-08-01 00:00 |
13:48:19.97 |
-08:08:48.9 |
HIP 67402 |
7.73 |
| 2026-08-01 12:00 |
13:48:31.51 |
-08:10:10.2 |
HIP 67402 |
4.60 |
| 2026-08-02 00:00 |
13:48:43.17 |
-08:11:32.1 |
HIP 67402 |
1.54 |
| 2026-08-02 12:00 |
13:48:54.96 |
-08:12:54.5 |
HIP 67402 |
2.03 |
| 2026-08-03 00:00 |
13:49:06.85 |
-08:14:17.5 |
HIP 67402 |
5.19 |
| 2026-08-03 12:00 |
13:49:18.87 |
-08:15:41.1 |
HIP 67402 |
8.45 |
| 2026-08-04 00:00 |
13:49:31.01 |
-08:17:05.2 |
HIP 67402 |
11.75 |
| 2026-08-04 12:00 |
13:49:43.26 |
-08:18:29.9 |
HIP 67402 |
15.09 |
| 2026-08-05 00:00 |
13:49:55.63 |
-08:19:55.0 |
HIP 67402 |
18.46 |
| 2026-08-05 12:00 |
13:50:08.12 |
-08:21:20.8 |
HIP 67402 |
21.86 |
| 2026-08-06 00:00 |
13:50:20.72 |
-08:22:47.0 |
HIP 67402 |
25.29 |
| 2026-08-06 12:00 |
13:50:33.44 |
-08:24:13.8 |
HIP 67402 |
28.75 |
| 2026-08-07 00:00 |
13:50:46.27 |
-08:25:41.1 |
HIP 67402 |
32.24 |
| 2026-08-07 12:00 |
13:50:59.22 |
-08:27:08.9 |
HIP 67402 |
35.76 |
| 2026-08-08 00:00 |
13:51:12.27 |
-08:28:37.2 |
HIP 67402 |
39.31 |
| 2026-08-08 12:00 |
13:51:25.44 |
-08:30:06.0 |
HIP 67855 |
37.03 |
| 2026-08-09 00:00 |
13:51:38.73 |
-08:31:35.3 |
HIP 67855 |
33.83 |
| 2026-08-09 12:00 |
13:51:52.12 |
-08:33:05.1 |
HIP 67855 |
30.69 |
| 2026-08-10 00:00 |
13:52:05.62 |
-08:34:35.4 |
HIP 67855 |
27.64 |
| 2026-08-10 12:00 |
13:52:19.23 |
-08:36:06.2 |
HIP 67855 |
24.74 |
| 2026-08-11 00:00 |
13:52:32.96 |
-08:37:37.5 |
HIP 67855 |
22.06 |
| 2026-08-11 12:00 |
13:52:46.79 |
-08:39:09.2 |
HIP 67855 |
19.69 |
| 2026-08-12 00:00 |
13:53:00.72 |
-08:40:41.4 |
HIP 67855 |
17.79 |
| 2026-08-12 12:00 |
13:53:14.77 |
-08:42:14.0 |
HIP 67855 |
16.54 |
| 2026-08-13 00:00 |
13:53:28.92 |
-08:43:47.1 |
HIP 67855 |
16.10 |
| 2026-08-13 12:00 |
13:53:43.18 |
-08:45:20.7 |
HIP 67855 |
16.56 |
| 2026-08-14 00:00 |
13:53:57.54 |
-08:46:54.7 |
HIP 67855 |
17.87 |
| 2026-08-14 12:00 |
13:54:12.00 |
-08:48:29.1 |
HIP 67967 |
17.57 |
| 2026-08-15 00:00 |
13:54:26.57 |
-08:50:03.9 |
HIP 67967 |
16.17 |
| 2026-08-15 12:00 |
13:54:41.24 |
-08:51:39.2 |
HIP 67967 |
15.65 |
| 2026-08-16 00:00 |
13:54:56.01 |
-08:53:14.9 |
HIP 67967 |
16.12 |
| 2026-08-16 12:00 |
13:55:10.88 |
-08:54:51.0 |
HIP 67967 |
17.52 |
| 2026-08-17 00:00 |
13:55:25.85 |
-08:56:27.5 |
HIP 67967 |
19.66 |
| 2026-08-17 12:00 |
13:55:40.92 |
-08:58:04.4 |
HIP 67967 |
22.34 |
| 2026-08-18 00:00 |
13:55:56.09 |
-08:59:41.7 |
HIP 67967 |
25.41 |
| 2026-08-18 12:00 |
13:56:11.35 |
-09:01:19.4 |
HIP 67967 |
28.75 |
| 2026-08-19 00:00 |
13:56:26.71 |
-09:02:57.5 |
HIP 68241 |
26.16 |