| Parameter |
Value |
| Designation |
C/2024 N1 (PANSTARRS) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2025-10-18T19:01:49.609920Z |
| Orbit solution date (soln_date, UTC) |
2026-03-07T14:43:04Z |
| Obs used |
57 |
| NEO |
- |
| M1 |
4.500 |
| K1 |
18.250 |
| 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) |
2025-03-05.0000000 |
| e |
1.00144093 |
| q (au) |
4.398543 |
| a (au) |
-3052.575831 |
| i (deg) |
88.779969 |
| Ω (om, deg) |
323.018819 |
| ω (w, deg) |
91.242965 |
| M (ma, deg) |
-0.001331 |
Magnitude
Scatter + Global Linear
$$
M_a = (5.816 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
5.816 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.500 |
| 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) |
| 2026-05-12 00:00 |
10:30:51.04 |
+73:49:19.8 |
HIP 51552 |
4.74 |
| 2026-05-12 12:00 |
10:30:12.65 |
+73:40:36.2 |
HIP 51552 |
9.17 |
| 2026-05-13 00:00 |
10:29:35.66 |
+73:31:52.2 |
HIP 51521 |
14.22 |
| 2026-05-13 12:00 |
10:29:00.03 |
+73:23:07.9 |
HIP 51521 |
10.69 |
| 2026-05-14 00:00 |
10:28:25.74 |
+73:14:23.3 |
HIP 51521 |
13.81 |
| 2026-05-14 12:00 |
10:27:52.73 |
+73:05:38.6 |
HIP 51521 |
20.75 |
| 2026-05-15 00:00 |
10:27:20.99 |
+72:56:53.7 |
HIP 51521 |
28.86 |
| 2026-05-15 12:00 |
10:26:50.47 |
+72:48:08.8 |
HIP 51521 |
37.37 |
| 2026-05-16 00:00 |
10:26:21.15 |
+72:39:23.8 |
HIP 50838 |
33.20 |
| 2026-05-16 12:00 |
10:25:52.99 |
+72:30:38.8 |
HIP 50838 |
24.64 |
| 2026-05-17 00:00 |
10:25:25.96 |
+72:21:53.8 |
HIP 50838 |
16.59 |
| 2026-05-17 12:00 |
10:25:00.04 |
+72:13:09.0 |
HIP 50838 |
10.27 |
| 2026-05-18 00:00 |
10:24:35.20 |
+72:04:24.4 |
HIP 50838 |
9.87 |
| 2026-05-18 12:00 |
10:24:11.41 |
+71:55:39.9 |
HIP 50838 |
15.81 |
| 2026-05-19 00:00 |
10:23:48.64 |
+71:46:55.7 |
HIP 50975 |
18.27 |
| 2026-05-19 12:00 |
10:23:26.87 |
+71:38:11.7 |
HIP 50975 |
10.90 |
| 2026-05-20 00:00 |
10:23:06.06 |
+71:29:28.1 |
HIP 50975 |
7.83 |
| 2026-05-20 12:00 |
10:22:46.21 |
+71:20:44.8 |
HIP 50842 |
5.25 |
| 2026-05-21 00:00 |
10:22:27.27 |
+71:12:02.0 |
HIP 50842 |
4.05 |
| 2026-05-21 12:00 |
10:22:09.23 |
+71:03:19.5 |
HIP 50842 |
12.69 |
| 2026-05-22 00:00 |
10:21:52.07 |
+70:54:37.6 |
HIP 50842 |
21.47 |
| 2026-05-22 12:00 |
10:21:35.77 |
+70:45:56.1 |
HIP 50435 |
25.31 |
| 2026-05-23 00:00 |
10:21:20.29 |
+70:37:15.2 |
HIP 50435 |
31.25 |
| 2026-05-23 12:00 |
10:21:05.63 |
+70:28:34.8 |
HIP 50418 |
33.24 |
| 2026-05-24 00:00 |
10:20:51.76 |
+70:19:55.1 |
HIP 50418 |
25.52 |
| 2026-05-24 12:00 |
10:20:38.66 |
+70:11:15.9 |
HIP 50418 |
18.77 |
| 2026-05-25 00:00 |
10:20:26.31 |
+70:02:37.4 |
HIP 50573 |
10.27 |
| 2026-05-25 12:00 |
10:20:14.70 |
+69:53:59.6 |
HIP 50573 |
2.34 |
| 2026-05-26 00:00 |
10:20:03.80 |
+69:45:22.4 |
HIP 50573 |
7.50 |
| 2026-05-26 12:00 |
10:19:53.60 |
+69:36:46.0 |
HIP 50573 |
16.03 |
| 2026-05-27 00:00 |
10:19:44.08 |
+69:28:10.4 |
HIP 50573 |
24.63 |
| 2026-05-27 12:00 |
10:19:35.23 |
+69:19:35.5 |
HIP 50652 |
19.24 |
| 2026-05-28 00:00 |
10:19:27.03 |
+69:11:01.4 |
HIP 50652 |
11.77 |
| 2026-05-28 12:00 |
10:19:19.46 |
+69:02:28.1 |
HIP 50652 |
7.35 |
| 2026-05-29 00:00 |
10:19:12.52 |
+68:53:55.7 |
HIP 50652 |
10.77 |
| 2026-05-29 12:00 |
10:19:06.17 |
+68:45:24.1 |
HIP 50399 |
9.21 |
| 2026-05-30 00:00 |
10:19:00.42 |
+68:36:53.4 |
HIP 50685 |
13.73 |
| 2026-05-30 12:00 |
10:18:55.25 |
+68:28:23.5 |
HIP 50685 |
20.20 |
| 2026-05-31 00:00 |
10:18:50.63 |
+68:19:54.6 |
HIP 50620 |
14.44 |
| 2026-05-31 12:00 |
10:18:46.57 |
+68:11:26.6 |
HIP 50620 |
9.56 |
| 2026-06-01 00:00 |
10:18:43.05 |
+68:02:59.6 |
HIP 50618 |
10.59 |
| 2026-06-01 12:00 |
10:18:40.05 |
+67:54:33.5 |
HIP 50618 |
16.56 |
| 2026-06-02 00:00 |
10:18:37.57 |
+67:46:08.4 |
HIP 50618 |
24.03 |