| 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) |
| 2026-05-12 00:00 |
17:05:42.20 |
+05:57:55.3 |
HIP 83620 |
26.64 |
| 2026-05-12 12:00 |
17:05:28.55 |
+06:00:20.5 |
HIP 83620 |
23.85 |
| 2026-05-13 00:00 |
17:05:14.72 |
+06:02:44.4 |
HIP 83620 |
21.54 |
| 2026-05-13 12:00 |
17:05:00.72 |
+06:05:06.8 |
HIP 83620 |
19.89 |
| 2026-05-14 00:00 |
17:04:46.54 |
+06:07:27.7 |
HIP 83620 |
19.09 |
| 2026-05-14 12:00 |
17:04:32.19 |
+06:09:47.2 |
HIP 83620 |
19.26 |
| 2026-05-15 00:00 |
17:04:17.67 |
+06:12:05.1 |
HIP 83620 |
20.38 |
| 2026-05-15 12:00 |
17:04:02.98 |
+06:14:21.6 |
HIP 83620 |
22.33 |
| 2026-05-16 00:00 |
17:03:48.13 |
+06:16:36.4 |
HIP 83620 |
24.93 |
| 2026-05-16 12:00 |
17:03:33.12 |
+06:18:49.7 |
HIP 83620 |
28.00 |
| 2026-05-17 00:00 |
17:03:17.95 |
+06:21:01.4 |
HIP 83322 |
27.47 |
| 2026-05-17 12:00 |
17:03:02.62 |
+06:23:11.4 |
HIP 83322 |
23.11 |
| 2026-05-18 00:00 |
17:02:47.14 |
+06:25:19.8 |
HIP 83322 |
18.74 |
| 2026-05-18 12:00 |
17:02:31.51 |
+06:27:26.5 |
HIP 83322 |
14.38 |
| 2026-05-19 00:00 |
17:02:15.74 |
+06:29:31.5 |
HIP 83322 |
10.07 |
| 2026-05-19 12:00 |
17:01:59.82 |
+06:31:34.7 |
HIP 83322 |
5.96 |
| 2026-05-20 00:00 |
17:01:43.76 |
+06:33:36.2 |
HIP 83322 |
3.09 |
| 2026-05-20 12:00 |
17:01:27.56 |
+06:35:35.8 |
HIP 83322 |
4.89 |
| 2026-05-21 00:00 |
17:01:11.23 |
+06:37:33.7 |
HIP 83322 |
8.90 |
| 2026-05-21 12:00 |
17:00:54.77 |
+06:39:29.8 |
HIP 83223 |
7.73 |
| 2026-05-22 00:00 |
17:00:38.18 |
+06:41:24.0 |
HIP 83223 |
6.74 |
| 2026-05-22 12:00 |
17:00:21.47 |
+06:43:16.3 |
HIP 83223 |
8.47 |
| 2026-05-23 00:00 |
17:00:04.64 |
+06:45:06.8 |
HIP 83223 |
11.81 |
| 2026-05-23 12:00 |
16:59:47.69 |
+06:46:55.3 |
HIP 83120 |
14.18 |
| 2026-05-24 00:00 |
16:59:30.62 |
+06:48:42.0 |
HIP 83120 |
13.46 |
| 2026-05-24 12:00 |
16:59:13.44 |
+06:50:26.6 |
HIP 83120 |
14.22 |
| 2026-05-25 00:00 |
16:58:56.15 |
+06:52:09.3 |
HIP 83120 |
16.28 |
| 2026-05-25 12:00 |
16:58:38.76 |
+06:53:50.1 |
HIP 83120 |
19.23 |
| 2026-05-26 00:00 |
16:58:21.27 |
+06:55:28.8 |
HIP 83120 |
22.74 |
| 2026-05-26 12:00 |
16:58:03.68 |
+06:57:05.5 |
HIP 82969 |
24.20 |
| 2026-05-27 00:00 |
16:57:45.99 |
+06:58:40.1 |
HIP 82969 |
20.98 |
| 2026-05-27 12:00 |
16:57:28.22 |
+07:00:12.7 |
HIP 82969 |
18.42 |
| 2026-05-28 00:00 |
16:57:10.35 |
+07:01:43.2 |
HIP 82969 |
16.82 |
| 2026-05-28 12:00 |
16:56:52.40 |
+07:03:11.6 |
HIP 82969 |
16.49 |
| 2026-05-29 00:00 |
16:56:34.37 |
+07:04:37.9 |
HIP 82969 |
17.50 |
| 2026-05-29 12:00 |
16:56:16.26 |
+07:06:02.1 |
HIP 82969 |
19.66 |
| 2026-05-30 00:00 |
16:55:58.07 |
+07:07:24.2 |
HIP 82969 |
22.63 |
| 2026-05-30 12:00 |
16:55:39.81 |
+07:08:44.0 |
HIP 82733 |
19.51 |
| 2026-05-31 00:00 |
16:55:21.49 |
+07:10:01.8 |
HIP 82733 |
15.19 |
| 2026-05-31 12:00 |
16:55:03.10 |
+07:11:17.3 |
HIP 82733 |
11.22 |
| 2026-06-01 00:00 |
16:54:44.65 |
+07:12:30.6 |
HIP 82733 |
8.15 |
| 2026-06-01 12:00 |
16:54:26.14 |
+07:13:41.7 |
HIP 82733 |
7.23 |
| 2026-06-02 00:00 |
16:54:07.58 |
+07:14:50.5 |
HIP 82733 |
9.15 |