C/2024 N1 (PANSTARRS)
| Parameter |
Value |
| Designation |
C/2024 N1 (PANSTARRS) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2025-10-18T18:40:57.717120Z |
| Orbit solution date (soln_date, UTC) |
2025-11-04T12:42:53Z |
| Obs used |
52 |
| NEO |
- |
| M1 |
4.900 |
| K1 |
17.750 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2024-07-01T11:04:26.169600Z |
| Discovery magnitude (MPC) |
21.86 w |
| Discovery observatory (MPC) |
F52 · Pan-STARRS 2, Haleakala |
Osculating Elements
| Parameter |
Value |
| Epoch (epoch_cal, TDB) |
2025-01-29.0000000 |
| e |
1.00144535 |
| q (au) |
4.398560 |
| a (au) |
-3043.245716 |
| i (deg) |
88.779200 |
| Ω (om, deg) |
323.017561 |
| ω (w, deg) |
91.241083 |
| M (ma, deg) |
-0.001543 |
Magnitude
Scatter + Global Linear
$$
M_a = (5.849 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
5.849 |
| n |
6.000 |
| gf |
0.999 |
| gb |
-0.502 |
| k |
1.000 |
| 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) |
| 2026-02-03 00:00 |
17:12:52.87 |
+68:17:26.1 |
HIP 84002 |
33.24 |
| 2026-02-03 12:00 |
17:12:52.05 |
+68:25:06.4 |
HIP 84002 |
26.46 |
| 2026-02-04 00:00 |
17:12:50.68 |
+68:32:48.8 |
HIP 84002 |
20.25 |
| 2026-02-04 12:00 |
17:12:48.75 |
+68:40:33.5 |
HIP 84002 |
15.40 |
| 2026-02-05 00:00 |
17:12:46.26 |
+68:48:20.2 |
HIP 84002 |
13.52 |
| 2026-02-05 12:00 |
17:12:43.17 |
+68:56:09.1 |
HIP 84002 |
15.78 |
| 2026-02-06 00:00 |
17:12:39.49 |
+69:04:00.1 |
HIP 84179 |
14.31 |
| 2026-02-06 12:00 |
17:12:35.19 |
+69:11:53.1 |
HIP 84179 |
6.42 |
| 2026-02-07 00:00 |
17:12:30.27 |
+69:19:48.1 |
HIP 84179 |
1.52 |
| 2026-02-07 12:00 |
17:12:24.70 |
+69:27:45.1 |
HIP 84179 |
9.48 |
| 2026-02-08 00:00 |
17:12:18.47 |
+69:35:44.0 |
HIP 84179 |
17.48 |
| 2026-02-08 12:00 |
17:12:11.56 |
+69:43:44.8 |
HIP 84179 |
25.51 |
| 2026-02-09 00:00 |
17:12:03.96 |
+69:51:47.5 |
HIP 84088 |
28.48 |
| 2026-02-09 12:00 |
17:11:55.65 |
+69:59:52.1 |
HIP 84088 |
20.37 |
| 2026-02-10 00:00 |
17:11:46.61 |
+70:07:58.4 |
HIP 84088 |
12.24 |
| 2026-02-10 12:00 |
17:11:36.82 |
+70:16:06.4 |
HIP 84088 |
4.07 |
| 2026-02-11 00:00 |
17:11:26.27 |
+70:24:16.2 |
HIP 84088 |
4.17 |
| 2026-02-11 12:00 |
17:11:14.94 |
+70:32:27.6 |
HIP 84088 |
12.40 |
| 2026-02-12 00:00 |
17:11:02.79 |
+70:40:40.6 |
HIP 84088 |
20.68 |
| 2026-02-12 12:00 |
17:10:49.83 |
+70:48:55.2 |
HIP 84088 |
28.99 |
| 2026-02-13 00:00 |
17:10:36.01 |
+70:57:11.3 |
HIP 83442 |
36.73 |
| 2026-02-13 12:00 |
17:10:21.33 |
+71:05:28.9 |
HIP 83407 |
36.43 |
| 2026-02-14 00:00 |
17:10:05.76 |
+71:13:47.9 |
HIP 83407 |
36.43 |
| 2026-02-14 12:00 |
17:09:49.27 |
+71:22:08.3 |
HIP 84516 |
35.29 |
| 2026-02-15 00:00 |
17:09:31.85 |
+71:30:30.1 |
HIP 84516 |
34.14 |
| 2026-02-15 12:00 |
17:09:13.46 |
+71:38:53.1 |
HIP 83870 |
29.32 |
| 2026-02-16 00:00 |
17:08:54.09 |
+71:47:17.3 |
HIP 83870 |
20.81 |
| 2026-02-16 12:00 |
17:08:33.70 |
+71:55:42.7 |
HIP 83870 |
12.30 |
| 2026-02-17 00:00 |
17:08:12.28 |
+72:04:09.1 |
HIP 83870 |
4.08 |
| 2026-02-17 12:00 |
17:07:49.79 |
+72:12:36.7 |
HIP 83870 |
5.52 |
| 2026-02-18 00:00 |
17:07:26.20 |
+72:21:05.2 |
HIP 83884 |
5.76 |
| 2026-02-18 12:00 |
17:07:01.49 |
+72:29:34.6 |
HIP 83884 |
10.73 |
| 2026-02-19 00:00 |
17:06:35.62 |
+72:38:04.9 |
HIP 83884 |
18.71 |
| 2026-02-19 12:00 |
17:06:08.57 |
+72:46:36.0 |
HIP 83914 |
25.84 |
| 2026-02-20 00:00 |
17:05:40.31 |
+72:55:07.8 |
HIP 83914 |
20.23 |
| 2026-02-20 12:00 |
17:05:10.80 |
+73:03:40.3 |
HIP 83914 |
17.52 |
| 2026-02-21 00:00 |
17:04:40.01 |
+73:12:13.3 |
HIP 83291 |
15.95 |
| 2026-02-21 12:00 |
17:04:07.90 |
+73:20:46.9 |
HIP 83291 |
12.36 |
| 2026-02-22 00:00 |
17:03:34.44 |
+73:29:20.9 |
HIP 83291 |
14.40 |
| 2026-02-22 12:00 |
17:02:59.60 |
+73:37:55.3 |
HIP 83678 |
13.62 |
| 2026-02-23 00:00 |
17:02:23.33 |
+73:46:30.0 |
HIP 83678 |
17.09 |
| 2026-02-23 12:00 |
17:01:45.60 |
+73:55:04.9 |
HIP 83678 |
23.69 |
| 2026-02-24 00:00 |
17:01:06.37 |
+74:03:39.9 |
HIP 82886 |
23.70 |