| Parameter |
Value |
| Designation |
P/2014 V1 (PANSTARRS) |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2015-01-21T15:55:13.284480Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:33:02Z |
| Obs used |
42 |
| NEO |
- |
| M1 |
13.300 |
| K1 |
10.000 |
| PC |
- |
Osculating Elements
| Parameter |
Value |
| Epoch (epoch_cal, TDB) |
2014-11-13.0000000 |
| e |
0.52646548 |
| q (au) |
2.563720 |
| a (au) |
5.414009 |
| i (deg) |
22.461187 |
| Ω (om, deg) |
166.303030 |
| ω (w, deg) |
178.032981 |
| M (ma, deg) |
354.549580 |
Magnitude
Scatter + Global Linear
$$
M_a = (13.850 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
13.850 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-1.000 |
| k |
0.800 |
| 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) |
| 2026-03-26 00:00 |
17:10:59.54 |
+01:25:12.3 |
HIP 84018 |
10.14 |
| 2026-03-26 12:00 |
17:11:06.67 |
+01:28:03.3 |
HIP 84018 |
10.15 |
| 2026-03-27 00:00 |
17:11:13.59 |
+01:30:55.0 |
HIP 84018 |
11.17 |
| 2026-03-27 12:00 |
17:11:20.30 |
+01:33:47.2 |
HIP 84018 |
12.94 |
| 2026-03-28 00:00 |
17:11:26.79 |
+01:36:40.0 |
HIP 84018 |
15.19 |
| 2026-03-28 12:00 |
17:11:33.06 |
+01:39:33.3 |
HIP 84018 |
17.72 |
| 2026-03-29 00:00 |
17:11:39.11 |
+01:42:27.2 |
HIP 84018 |
20.43 |
| 2026-03-29 12:00 |
17:11:44.95 |
+01:45:21.6 |
HIP 84018 |
23.25 |
| 2026-03-30 00:00 |
17:11:50.57 |
+01:48:16.5 |
HIP 84163 |
20.70 |
| 2026-03-30 12:00 |
17:11:55.97 |
+01:51:11.8 |
HIP 84163 |
17.49 |
| 2026-03-31 00:00 |
17:12:01.15 |
+01:54:07.7 |
HIP 84163 |
14.29 |
| 2026-03-31 12:00 |
17:12:06.11 |
+01:57:04.1 |
HIP 84163 |
11.10 |
| 2026-04-01 00:00 |
17:12:10.84 |
+02:00:00.9 |
HIP 84163 |
7.92 |
| 2026-04-01 12:00 |
17:12:15.36 |
+02:02:58.1 |
HIP 84163 |
4.76 |
| 2026-04-02 00:00 |
17:12:19.65 |
+02:05:55.8 |
HIP 84163 |
1.61 |
| 2026-04-02 12:00 |
17:12:23.72 |
+02:08:53.9 |
HIP 84163 |
1.53 |
| 2026-04-03 00:00 |
17:12:27.56 |
+02:11:52.4 |
HIP 84163 |
4.65 |
| 2026-04-03 12:00 |
17:12:31.18 |
+02:14:51.3 |
HIP 84163 |
7.77 |
| 2026-04-04 00:00 |
17:12:34.58 |
+02:17:50.5 |
HIP 84163 |
10.87 |
| 2026-04-04 12:00 |
17:12:37.75 |
+02:20:50.1 |
HIP 84163 |
13.97 |
| 2026-04-05 00:00 |
17:12:40.69 |
+02:23:50.1 |
HIP 84163 |
17.05 |
| 2026-04-05 12:00 |
17:12:43.40 |
+02:26:50.4 |
HIP 84163 |
20.13 |
| 2026-04-06 00:00 |
17:12:45.88 |
+02:29:51.0 |
HIP 84163 |
23.20 |
| 2026-04-06 12:00 |
17:12:48.14 |
+02:32:51.9 |
HIP 84163 |
26.26 |
| 2026-04-07 00:00 |
17:12:50.16 |
+02:35:53.0 |
HIP 84163 |
29.31 |
| 2026-04-07 12:00 |
17:12:51.96 |
+02:38:54.5 |
HIP 84163 |
32.35 |
| 2026-04-08 00:00 |
17:12:53.52 |
+02:41:56.2 |
HIP 84052 |
34.99 |
| 2026-04-08 12:00 |
17:12:54.85 |
+02:44:58.1 |
HIP 84052 |
33.60 |
| 2026-04-09 00:00 |
17:12:55.95 |
+02:48:00.2 |
HIP 84052 |
32.38 |
| 2026-04-09 12:00 |
17:12:56.82 |
+02:51:02.5 |
HIP 84052 |
31.35 |
| 2026-04-10 00:00 |
17:12:57.46 |
+02:54:04.9 |
HIP 84052 |
30.54 |
| 2026-04-10 12:00 |
17:12:57.86 |
+02:57:07.6 |
HIP 84052 |
29.96 |
| 2026-04-11 00:00 |
17:12:58.03 |
+03:00:10.3 |
HIP 84052 |
29.63 |
| 2026-04-11 12:00 |
17:12:57.96 |
+03:03:13.2 |
HIP 84052 |
29.55 |
| 2026-04-12 00:00 |
17:12:57.66 |
+03:06:16.2 |
HIP 84052 |
29.72 |
| 2026-04-12 12:00 |
17:12:57.13 |
+03:09:19.2 |
HIP 84052 |
30.14 |
| 2026-04-13 00:00 |
17:12:56.36 |
+03:12:22.3 |
HIP 84052 |
30.81 |
| 2026-04-13 12:00 |
17:12:55.35 |
+03:15:25.5 |
HIP 84052 |
31.71 |
| 2026-04-14 00:00 |
17:12:54.11 |
+03:18:28.6 |
HIP 84052 |
32.81 |
| 2026-04-14 12:00 |
17:12:52.63 |
+03:21:31.8 |
HIP 84384 |
33.46 |
| 2026-04-15 00:00 |
17:12:50.91 |
+03:24:34.9 |
HIP 84384 |
33.67 |
| 2026-04-15 12:00 |
17:12:48.96 |
+03:27:37.9 |
HIP 84384 |
34.22 |
| 2026-04-16 00:00 |
17:12:46.78 |
+03:30:40.9 |
HIP 84384 |
35.08 |