| 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) |
| 2026-07-29 00:00 |
16:28:02.29 |
+05:12:38.9 |
HIP 80542 |
21.99 |
| 2026-07-29 12:00 |
16:27:59.67 |
+05:09:43.3 |
HIP 80542 |
22.55 |
| 2026-07-30 00:00 |
16:27:57.30 |
+05:06:46.4 |
HIP 80722 |
23.31 |
| 2026-07-30 12:00 |
16:27:55.20 |
+05:03:48.2 |
HIP 80722 |
21.28 |
| 2026-07-31 00:00 |
16:27:53.35 |
+05:00:48.9 |
HIP 80722 |
19.44 |
| 2026-07-31 12:00 |
16:27:51.76 |
+04:57:48.3 |
HIP 80722 |
17.86 |
| 2026-08-01 00:00 |
16:27:50.44 |
+04:54:46.6 |
HIP 80722 |
16.63 |
| 2026-08-01 12:00 |
16:27:49.37 |
+04:51:43.7 |
HIP 80722 |
15.82 |
| 2026-08-02 00:00 |
16:27:48.56 |
+04:48:39.7 |
HIP 80722 |
15.51 |
| 2026-08-02 12:00 |
16:27:48.01 |
+04:45:34.5 |
HIP 80722 |
15.75 |
| 2026-08-03 00:00 |
16:27:47.72 |
+04:42:28.3 |
HIP 80722 |
16.51 |
| 2026-08-03 12:00 |
16:27:47.69 |
+04:39:20.9 |
HIP 80722 |
17.74 |
| 2026-08-04 00:00 |
16:27:47.93 |
+04:36:12.5 |
HIP 80722 |
19.35 |
| 2026-08-04 12:00 |
16:27:48.43 |
+04:33:03.1 |
HIP 80722 |
21.28 |
| 2026-08-05 00:00 |
16:27:49.18 |
+04:29:52.6 |
HIP 80722 |
23.44 |
| 2026-08-05 12:00 |
16:27:50.20 |
+04:26:41.1 |
HIP 80722 |
25.79 |
| 2026-08-06 00:00 |
16:27:51.49 |
+04:23:28.6 |
HIP 80720 |
25.77 |
| 2026-08-06 12:00 |
16:27:53.03 |
+04:20:15.1 |
HIP 80720 |
22.94 |
| 2026-08-07 00:00 |
16:27:54.84 |
+04:17:00.7 |
HIP 80720 |
20.18 |
| 2026-08-07 12:00 |
16:27:56.92 |
+04:13:45.3 |
HIP 80720 |
17.53 |
| 2026-08-08 00:00 |
16:27:59.25 |
+04:10:29.0 |
HIP 80720 |
15.08 |
| 2026-08-08 12:00 |
16:28:01.85 |
+04:07:11.8 |
HIP 80720 |
12.95 |
| 2026-08-09 00:00 |
16:28:04.72 |
+04:03:53.8 |
HIP 80720 |
11.36 |
| 2026-08-09 12:00 |
16:28:07.84 |
+04:00:34.8 |
HIP 80720 |
10.58 |
| 2026-08-10 00:00 |
16:28:11.24 |
+03:57:15.0 |
HIP 80720 |
10.80 |
| 2026-08-10 12:00 |
16:28:14.89 |
+03:53:54.4 |
HIP 80720 |
12.01 |
| 2026-08-11 00:00 |
16:28:18.82 |
+03:50:33.0 |
HIP 80720 |
13.97 |
| 2026-08-11 12:00 |
16:28:23.00 |
+03:47:10.9 |
HIP 80720 |
16.43 |
| 2026-08-12 00:00 |
16:28:27.45 |
+03:43:47.9 |
HIP 80720 |
19.22 |
| 2026-08-12 12:00 |
16:28:32.17 |
+03:40:24.2 |
HIP 80720 |
22.23 |
| 2026-08-13 00:00 |
16:28:37.15 |
+03:36:59.8 |
HIP 80700 |
21.74 |
| 2026-08-13 12:00 |
16:28:42.39 |
+03:33:34.7 |
HIP 80700 |
18.39 |
| 2026-08-14 00:00 |
16:28:47.90 |
+03:30:08.8 |
HIP 80700 |
15.19 |
| 2026-08-14 12:00 |
16:28:53.67 |
+03:26:42.4 |
HIP 80700 |
12.28 |
| 2026-08-15 00:00 |
16:28:59.70 |
+03:23:15.3 |
HIP 80700 |
9.96 |
| 2026-08-15 12:00 |
16:29:06.00 |
+03:19:47.5 |
HIP 80700 |
8.77 |
| 2026-08-16 00:00 |
16:29:12.56 |
+03:16:19.2 |
HIP 80700 |
9.20 |
| 2026-08-16 12:00 |
16:29:19.38 |
+03:12:50.2 |
HIP 80700 |
11.11 |
| 2026-08-17 00:00 |
16:29:26.47 |
+03:09:20.7 |
HIP 80700 |
13.92 |
| 2026-08-17 12:00 |
16:29:33.81 |
+03:05:50.7 |
HIP 80700 |
17.24 |
| 2026-08-18 00:00 |
16:29:41.42 |
+03:02:20.1 |
HIP 80700 |
20.83 |
| 2026-08-18 12:00 |
16:29:49.28 |
+02:58:49.0 |
HIP 80700 |
24.60 |
| 2026-08-19 00:00 |
16:29:57.41 |
+02:55:17.4 |
HIP 80700 |
28.50 |