| Parameter |
Value |
| Designation |
P/2024 X3 (PANSTARRS) |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2024-09-05T18:37:02.665920Z |
| Orbit solution date (soln_date, UTC) |
2026-01-07T15:42:53Z |
| Obs used |
108 |
| NEO |
- |
| M1 |
16.400 |
| 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) |
2025-02-10.0000000 |
| e |
0.62626756 |
| q (au) |
2.614082 |
| a (au) |
6.994529 |
| i (deg) |
2.972346 |
| Ω (om, deg) |
113.364815 |
| ω (w, deg) |
352.940588 |
| M (ma, deg) |
8.376951 |
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 |
0.970 |
| 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) |
| 2026-03-26 00:00 |
14:14:33.94 |
-09:40:40.0 |
HIP 69694 |
27.41 |
| 2026-03-26 12:00 |
14:14:20.76 |
-09:39:20.3 |
HIP 69694 |
29.17 |
| 2026-03-27 00:00 |
14:14:07.45 |
-09:38:00.2 |
HIP 69403 |
28.15 |
| 2026-03-27 12:00 |
14:13:54.02 |
-09:36:39.5 |
HIP 69403 |
26.36 |
| 2026-03-28 00:00 |
14:13:40.47 |
-09:35:18.4 |
HIP 69403 |
24.95 |
| 2026-03-28 12:00 |
14:13:26.79 |
-09:33:56.9 |
HIP 69403 |
23.98 |
| 2026-03-29 00:00 |
14:13:13.00 |
-09:32:34.9 |
HIP 69403 |
23.54 |
| 2026-03-29 12:00 |
14:12:59.09 |
-09:31:12.4 |
HIP 69403 |
23.66 |
| 2026-03-30 00:00 |
14:12:45.06 |
-09:29:49.6 |
HIP 69403 |
24.35 |
| 2026-03-30 12:00 |
14:12:30.93 |
-09:28:26.3 |
HIP 69403 |
25.57 |
| 2026-03-31 00:00 |
14:12:16.69 |
-09:27:02.7 |
HIP 69403 |
27.27 |
| 2026-03-31 12:00 |
14:12:02.34 |
-09:25:38.7 |
HIP 69403 |
29.38 |
| 2026-04-01 00:00 |
14:11:47.88 |
-09:24:14.3 |
HIP 69403 |
31.81 |
| 2026-04-01 12:00 |
14:11:33.33 |
-09:22:49.6 |
HIP 69403 |
34.52 |
| 2026-04-02 00:00 |
14:11:18.68 |
-09:21:24.5 |
HIP 69403 |
37.44 |
| 2026-04-02 12:00 |
14:11:03.93 |
-09:19:59.2 |
HIP 69363 |
39.96 |
| 2026-04-03 00:00 |
14:10:49.09 |
-09:18:33.5 |
HIP 69363 |
42.58 |
| 2026-04-03 12:00 |
14:10:34.16 |
-09:17:07.5 |
HIP 69363 |
45.41 |
| 2026-04-04 00:00 |
14:10:19.14 |
-09:15:41.2 |
HIP 69363 |
48.41 |
| 2026-04-04 12:00 |
14:10:04.03 |
-09:14:14.7 |
HIP 68940 |
49.83 |
| 2026-04-05 00:00 |
14:09:48.84 |
-09:12:47.9 |
HIP 68940 |
46.27 |
| 2026-04-05 12:00 |
14:09:33.57 |
-09:11:20.9 |
HIP 68940 |
42.77 |
| 2026-04-06 00:00 |
14:09:18.22 |
-09:09:53.7 |
HIP 68940 |
39.35 |
| 2026-04-06 12:00 |
14:09:02.80 |
-09:08:26.2 |
HIP 68940 |
36.05 |
| 2026-04-07 00:00 |
14:08:47.31 |
-09:06:58.6 |
HIP 68940 |
32.90 |
| 2026-04-07 12:00 |
14:08:31.74 |
-09:05:30.7 |
HIP 68940 |
29.97 |
| 2026-04-08 00:00 |
14:08:16.11 |
-09:04:02.8 |
HIP 68940 |
27.33 |
| 2026-04-08 12:00 |
14:08:00.42 |
-09:02:34.6 |
HIP 68940 |
25.09 |
| 2026-04-09 00:00 |
14:07:44.66 |
-09:01:06.4 |
HIP 68888 |
22.77 |
| 2026-04-09 12:00 |
14:07:28.85 |
-08:59:38.0 |
HIP 68888 |
18.59 |
| 2026-04-10 00:00 |
14:07:12.97 |
-08:58:09.5 |
HIP 68888 |
14.41 |
| 2026-04-10 12:00 |
14:06:57.05 |
-08:56:40.9 |
HIP 68888 |
10.21 |
| 2026-04-11 00:00 |
14:06:41.08 |
-08:55:12.3 |
HIP 68888 |
6.00 |
| 2026-04-11 12:00 |
14:06:25.06 |
-08:53:43.5 |
HIP 68888 |
1.81 |
| 2026-04-12 00:00 |
14:06:08.99 |
-08:52:14.8 |
HIP 68888 |
2.50 |
| 2026-04-12 12:00 |
14:05:52.89 |
-08:50:46.0 |
HIP 68888 |
6.73 |
| 2026-04-13 00:00 |
14:05:36.74 |
-08:49:17.2 |
HIP 68888 |
10.98 |
| 2026-04-13 12:00 |
14:05:20.56 |
-08:47:48.5 |
HIP 68888 |
15.24 |
| 2026-04-14 00:00 |
14:05:04.35 |
-08:46:19.7 |
HIP 68805 |
16.66 |
| 2026-04-14 12:00 |
14:04:48.11 |
-08:44:51.0 |
HIP 68805 |
18.91 |
| 2026-04-15 00:00 |
14:04:31.84 |
-08:43:22.4 |
HIP 68805 |
21.77 |
| 2026-04-15 12:00 |
14:04:15.55 |
-08:41:53.8 |
HIP 68805 |
25.05 |
| 2026-04-16 00:00 |
14:03:59.24 |
-08:40:25.3 |
HIP 68805 |
28.60 |