| Parameter |
Value |
| Designation |
C/2023 V3 (PANSTARRS) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2023-08-06T07:06:22.426560Z |
| Orbit solution date (soln_date, UTC) |
2024-01-04T23:43:40Z |
| Obs used |
52 |
| NEO |
- |
| M1 |
11.600 |
| K1 |
10.000 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2023-11-03T10:56:06.691200Z |
| Discovery magnitude (MPC) |
20.57 w |
| Discovery observatory (MPC) |
F51 · Pan-STARRS 1, Haleakala |
Osculating Elements
| Parameter |
Value |
| Epoch (epoch_cal, TDB) |
2023-11-04.0000000 |
| e |
0.66229058 |
| q (au) |
4.471746 |
| a (au) |
13.241401 |
| i (deg) |
40.258479 |
| Ω (om, deg) |
91.489824 |
| ω (w, deg) |
291.538176 |
| M (ma, deg) |
1.834909 |
Magnitude
Scatter + Global Linear
$$
M_a = (17.964 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
17.964 |
| n |
2.000 |
| gf |
0.987 |
| gb |
-0.759 |
| k |
0.800 |
| δ90 |
9.978 |
| 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) |
| 2026-03-26 00:00 |
06:45:23.66 |
+36:43:34.6 |
HIP 32263 |
21.56 |
| 2026-03-26 12:00 |
06:45:28.25 |
+36:43:31.5 |
HIP 32263 |
22.22 |
| 2026-03-27 00:00 |
06:45:33.00 |
+36:43:28.2 |
HIP 32263 |
22.93 |
| 2026-03-27 12:00 |
06:45:37.91 |
+36:43:24.7 |
HIP 32263 |
23.68 |
| 2026-03-28 00:00 |
06:45:42.99 |
+36:43:21.0 |
HIP 32263 |
24.47 |
| 2026-03-28 12:00 |
06:45:48.22 |
+36:43:17.1 |
HIP 32496 |
24.94 |
| 2026-03-29 00:00 |
06:45:53.62 |
+36:43:13.1 |
HIP 32496 |
24.32 |
| 2026-03-29 12:00 |
06:45:59.17 |
+36:43:08.8 |
HIP 32496 |
23.72 |
| 2026-03-30 00:00 |
06:46:04.88 |
+36:43:04.3 |
HIP 32496 |
23.14 |
| 2026-03-30 12:00 |
06:46:10.75 |
+36:42:59.7 |
HIP 32496 |
22.59 |
| 2026-03-31 00:00 |
06:46:16.77 |
+36:42:54.9 |
HIP 32496 |
22.07 |
| 2026-03-31 12:00 |
06:46:22.95 |
+36:42:49.9 |
HIP 32496 |
21.60 |
| 2026-04-01 00:00 |
06:46:29.29 |
+36:42:44.8 |
HIP 32496 |
21.19 |
| 2026-04-01 12:00 |
06:46:35.78 |
+36:42:39.5 |
HIP 32496 |
20.83 |
| 2026-04-02 00:00 |
06:46:42.42 |
+36:42:34.0 |
HIP 32496 |
20.55 |
| 2026-04-02 12:00 |
06:46:49.22 |
+36:42:28.4 |
HIP 32496 |
20.34 |
| 2026-04-03 00:00 |
06:46:56.17 |
+36:42:22.6 |
HIP 32496 |
20.22 |
| 2026-04-03 12:00 |
06:47:03.27 |
+36:42:16.6 |
HIP 32496 |
20.20 |
| 2026-04-04 00:00 |
06:47:10.52 |
+36:42:10.5 |
HIP 32556 |
20.26 |
| 2026-04-04 12:00 |
06:47:17.92 |
+36:42:04.3 |
HIP 32556 |
20.05 |
| 2026-04-05 00:00 |
06:47:25.47 |
+36:41:57.9 |
HIP 32556 |
19.96 |
| 2026-04-05 12:00 |
06:47:33.17 |
+36:41:51.4 |
HIP 32556 |
19.98 |
| 2026-04-06 00:00 |
06:47:41.02 |
+36:41:44.7 |
HIP 32556 |
20.13 |
| 2026-04-06 12:00 |
06:47:49.01 |
+36:41:37.9 |
HIP 32556 |
20.40 |
| 2026-04-07 00:00 |
06:47:57.15 |
+36:41:30.9 |
HIP 32556 |
20.80 |
| 2026-04-07 12:00 |
06:48:05.44 |
+36:41:23.9 |
HIP 32556 |
21.33 |
| 2026-04-08 00:00 |
06:48:13.87 |
+36:41:16.7 |
HIP 32556 |
21.98 |
| 2026-04-08 12:00 |
06:48:22.45 |
+36:41:09.3 |
HIP 32728 |
21.10 |
| 2026-04-09 00:00 |
06:48:31.17 |
+36:41:01.9 |
HIP 32728 |
19.79 |
| 2026-04-09 12:00 |
06:48:40.03 |
+36:40:54.3 |
HIP 32728 |
18.53 |
| 2026-04-10 00:00 |
06:48:49.04 |
+36:40:46.6 |
HIP 32728 |
17.34 |
| 2026-04-10 12:00 |
06:48:58.19 |
+36:40:38.8 |
HIP 32728 |
16.25 |
| 2026-04-11 00:00 |
06:49:07.47 |
+36:40:30.9 |
HIP 32728 |
15.30 |
| 2026-04-11 12:00 |
06:49:16.90 |
+36:40:22.8 |
HIP 32728 |
14.51 |
| 2026-04-12 00:00 |
06:49:26.47 |
+36:40:14.7 |
HIP 32728 |
13.93 |
| 2026-04-12 12:00 |
06:49:36.18 |
+36:40:06.4 |
HIP 32728 |
13.60 |
| 2026-04-13 00:00 |
06:49:46.02 |
+36:39:58.1 |
HIP 32728 |
13.55 |
| 2026-04-13 12:00 |
06:49:56.00 |
+36:39:49.6 |
HIP 32728 |
13.79 |
| 2026-04-14 00:00 |
06:50:06.12 |
+36:39:41.0 |
HIP 32728 |
14.33 |
| 2026-04-14 12:00 |
06:50:16.37 |
+36:39:32.4 |
HIP 32728 |
15.13 |
| 2026-04-15 00:00 |
06:50:26.76 |
+36:39:23.6 |
HIP 32798 |
15.49 |
| 2026-04-15 12:00 |
06:50:37.29 |
+36:39:14.8 |
HIP 32798 |
15.83 |
| 2026-04-16 00:00 |
06:50:47.94 |
+36:39:05.8 |
HIP 32798 |
16.45 |