| 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) |
| 2026-09-25 00:00 |
14:19:02.78 |
-11:15:40.4 |
HIP 70049 |
20.14 |
| 2026-09-25 12:00 |
14:19:23.45 |
-11:17:33.0 |
HIP 70049 |
17.83 |
| 2026-09-26 00:00 |
14:19:44.16 |
-11:19:25.7 |
HIP 70049 |
16.99 |
| 2026-09-26 12:00 |
14:20:04.92 |
-11:21:18.4 |
HIP 70153 |
17.65 |
| 2026-09-27 00:00 |
14:20:25.73 |
-11:23:11.1 |
HIP 70153 |
12.38 |
| 2026-09-27 12:00 |
14:20:46.57 |
-11:25:03.8 |
HIP 70153 |
7.34 |
| 2026-09-28 00:00 |
14:21:07.47 |
-11:26:56.5 |
HIP 70153 |
3.70 |
| 2026-09-28 12:00 |
14:21:28.40 |
-11:28:49.2 |
HIP 70153 |
5.75 |
| 2026-09-29 00:00 |
14:21:49.38 |
-11:30:41.9 |
HIP 70153 |
10.60 |
| 2026-09-29 12:00 |
14:22:10.40 |
-11:32:34.6 |
HIP 70153 |
15.87 |
| 2026-09-30 00:00 |
14:22:31.46 |
-11:34:27.3 |
HIP 70336 |
15.69 |
| 2026-09-30 12:00 |
14:22:52.56 |
-11:36:20.0 |
HIP 70336 |
10.38 |
| 2026-10-01 00:00 |
14:23:13.70 |
-11:38:12.7 |
HIP 70336 |
5.47 |
| 2026-10-01 12:00 |
14:23:34.89 |
-11:40:05.3 |
HIP 70336 |
3.56 |
| 2026-10-02 00:00 |
14:23:56.11 |
-11:41:58.0 |
HIP 70336 |
7.51 |
| 2026-10-02 12:00 |
14:24:17.37 |
-11:43:50.6 |
HIP 70452 |
6.83 |
| 2026-10-03 00:00 |
14:24:38.67 |
-11:45:43.2 |
HIP 70452 |
5.57 |
| 2026-10-03 12:00 |
14:25:00.01 |
-11:47:35.7 |
HIP 70452 |
8.77 |
| 2026-10-04 00:00 |
14:25:21.39 |
-11:49:28.2 |
HIP 70452 |
13.58 |
| 2026-10-04 12:00 |
14:25:42.80 |
-11:51:20.7 |
HIP 70452 |
18.82 |
| 2026-10-05 00:00 |
14:26:04.25 |
-11:53:13.1 |
HIP 70452 |
24.21 |
| 2026-10-05 12:00 |
14:26:25.73 |
-11:55:05.5 |
HIP 70452 |
29.67 |
| 2026-10-06 00:00 |
14:26:47.25 |
-11:56:57.8 |
HIP 70452 |
35.18 |
| 2026-10-06 12:00 |
14:27:08.81 |
-11:58:50.0 |
HIP 70720 |
40.30 |
| 2026-10-07 00:00 |
14:27:30.39 |
-12:00:42.3 |
HIP 70720 |
41.26 |
| 2026-10-07 12:00 |
14:27:52.02 |
-12:02:34.4 |
HIP 70720 |
42.93 |
| 2026-10-08 00:00 |
14:28:13.67 |
-12:04:26.5 |
HIP 70975 |
43.08 |
| 2026-10-08 12:00 |
14:28:35.35 |
-12:06:18.4 |
HIP 70975 |
37.46 |
| 2026-10-09 00:00 |
14:28:57.07 |
-12:08:10.4 |
HIP 70975 |
31.84 |
| 2026-10-09 12:00 |
14:29:18.82 |
-12:10:02.2 |
HIP 70975 |
26.21 |
| 2026-10-10 00:00 |
14:29:40.60 |
-12:11:53.9 |
HIP 70975 |
20.58 |
| 2026-10-10 12:00 |
14:30:02.40 |
-12:13:45.6 |
HIP 70975 |
14.95 |
| 2026-10-11 00:00 |
14:30:24.24 |
-12:15:37.1 |
HIP 70975 |
9.32 |
| 2026-10-11 12:00 |
14:30:46.10 |
-12:17:28.6 |
HIP 70975 |
3.75 |
| 2026-10-12 00:00 |
14:31:07.99 |
-12:19:20.0 |
HIP 70975 |
2.29 |
| 2026-10-12 12:00 |
14:31:29.90 |
-12:21:11.2 |
HIP 70975 |
7.78 |
| 2026-10-13 00:00 |
14:31:51.84 |
-12:23:02.3 |
HIP 70975 |
13.42 |
| 2026-10-13 12:00 |
14:32:13.81 |
-12:24:53.4 |
HIP 70975 |
19.09 |
| 2026-10-14 00:00 |
14:32:35.80 |
-12:26:44.3 |
HIP 70975 |
24.76 |
| 2026-10-14 12:00 |
14:32:57.82 |
-12:28:35.0 |
HIP 71253 |
19.52 |
| 2026-10-15 00:00 |
14:33:19.85 |
-12:30:25.7 |
HIP 71253 |
13.98 |
| 2026-10-15 12:00 |
14:33:41.91 |
-12:32:16.2 |
HIP 71253 |
8.63 |
| 2026-10-16 00:00 |
14:34:03.99 |
-12:34:06.6 |
HIP 71253 |
4.27 |