C/2014 Q6 (PANSTARRS)
| Parameter |
Value |
| Designation |
C/2014 Q6 (PANSTARRS) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2015-01-06T09:14:07.203840Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:32:59Z |
| Obs used |
40 |
| NEO |
- |
| M1 |
7.100 |
| K1 |
15.000 |
| PC |
0.030 |
Osculating Elements
| Parameter |
Value |
| Epoch (epoch_cal, TDB) |
2014-10-28.0000000 |
| e |
0.99934882 |
| q (au) |
4.222707 |
| a (au) |
6484.666285 |
| i (deg) |
49.796804 |
| Ω (om, deg) |
326.655969 |
| ω (w, deg) |
2.534775 |
| M (ma, deg) |
359.999867 |
Magnitude
Scatter + Global Linear
$$
M_a = (6.415 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
6.415 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-1.000 |
| 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) |
| 2026-02-03 00:00 |
08:08:20.33 |
+55:59:50.7 |
HIP 39685 |
15.82 |
| 2026-02-03 12:00 |
08:08:12.38 |
+55:59:45.2 |
HIP 39685 |
14.77 |
| 2026-02-04 00:00 |
08:08:04.45 |
+55:59:39.2 |
HIP 39685 |
13.72 |
| 2026-02-04 12:00 |
08:07:56.55 |
+55:59:32.8 |
HIP 39685 |
12.68 |
| 2026-02-05 00:00 |
08:07:48.67 |
+55:59:26.0 |
HIP 39685 |
11.66 |
| 2026-02-05 12:00 |
08:07:40.82 |
+55:59:18.7 |
HIP 39685 |
10.66 |
| 2026-02-06 00:00 |
08:07:33.00 |
+55:59:11.1 |
HIP 39685 |
9.67 |
| 2026-02-06 12:00 |
08:07:25.20 |
+55:59:02.9 |
HIP 39685 |
8.71 |
| 2026-02-07 00:00 |
08:07:17.43 |
+55:58:54.4 |
HIP 39685 |
7.79 |
| 2026-02-07 12:00 |
08:07:09.68 |
+55:58:45.4 |
HIP 39685 |
6.92 |
| 2026-02-08 00:00 |
08:07:01.97 |
+55:58:36.0 |
HIP 39685 |
6.11 |
| 2026-02-08 12:00 |
08:06:54.28 |
+55:58:26.2 |
HIP 39685 |
5.41 |
| 2026-02-09 00:00 |
08:06:46.63 |
+55:58:16.0 |
HIP 39685 |
4.83 |
| 2026-02-09 12:00 |
08:06:39.00 |
+55:58:05.3 |
HIP 39685 |
4.45 |
| 2026-02-10 00:00 |
08:06:31.41 |
+55:57:54.2 |
HIP 39685 |
4.31 |
| 2026-02-10 12:00 |
08:06:23.85 |
+55:57:42.7 |
HIP 39685 |
4.42 |
| 2026-02-11 00:00 |
08:06:16.33 |
+55:57:30.7 |
HIP 39685 |
4.77 |
| 2026-02-11 12:00 |
08:06:08.84 |
+55:57:18.4 |
HIP 39685 |
5.31 |
| 2026-02-12 00:00 |
08:06:01.38 |
+55:57:05.6 |
HIP 39685 |
5.98 |
| 2026-02-12 12:00 |
08:05:53.96 |
+55:56:52.4 |
HIP 39685 |
6.75 |
| 2026-02-13 00:00 |
08:05:46.57 |
+55:56:38.7 |
HIP 39685 |
7.59 |
| 2026-02-13 12:00 |
08:05:39.23 |
+55:56:24.7 |
HIP 39685 |
8.46 |
| 2026-02-14 00:00 |
08:05:31.92 |
+55:56:10.3 |
HIP 39685 |
9.37 |
| 2026-02-14 12:00 |
08:05:24.64 |
+55:55:55.4 |
HIP 39685 |
10.30 |
| 2026-02-15 00:00 |
08:05:17.41 |
+55:55:40.1 |
HIP 39685 |
11.24 |
| 2026-02-15 12:00 |
08:05:10.22 |
+55:55:24.4 |
HIP 39685 |
12.19 |
| 2026-02-16 00:00 |
08:05:03.07 |
+55:55:08.3 |
HIP 39685 |
13.15 |
| 2026-02-16 12:00 |
08:04:55.96 |
+55:54:51.8 |
HIP 39685 |
14.12 |
| 2026-02-17 00:00 |
08:04:48.89 |
+55:54:34.9 |
HIP 39685 |
15.09 |
| 2026-02-17 12:00 |
08:04:41.86 |
+55:54:17.5 |
HIP 39685 |
16.06 |
| 2026-02-18 00:00 |
08:04:34.88 |
+55:53:59.8 |
HIP 39685 |
17.03 |
| 2026-02-18 12:00 |
08:04:27.94 |
+55:53:41.7 |
HIP 39685 |
18.00 |
| 2026-02-19 00:00 |
08:04:21.05 |
+55:53:23.2 |
HIP 39685 |
18.97 |
| 2026-02-19 12:00 |
08:04:14.20 |
+55:53:04.2 |
HIP 39685 |
19.94 |
| 2026-02-20 00:00 |
08:04:07.39 |
+55:52:44.9 |
HIP 39265 |
19.89 |
| 2026-02-20 12:00 |
08:04:00.64 |
+55:52:25.2 |
HIP 39265 |
18.92 |
| 2026-02-21 00:00 |
08:03:53.93 |
+55:52:05.1 |
HIP 39265 |
17.96 |
| 2026-02-21 12:00 |
08:03:47.27 |
+55:51:44.6 |
HIP 39265 |
17.01 |
| 2026-02-22 00:00 |
08:03:40.65 |
+55:51:23.7 |
HIP 39265 |
16.07 |
| 2026-02-22 12:00 |
08:03:34.09 |
+55:51:02.4 |
HIP 39265 |
15.14 |
| 2026-02-23 00:00 |
08:03:27.57 |
+55:50:40.8 |
HIP 39265 |
14.23 |
| 2026-02-23 12:00 |
08:03:21.11 |
+55:50:18.7 |
HIP 39265 |
13.34 |
| 2026-02-24 00:00 |
08:03:14.70 |
+55:49:56.3 |
HIP 39265 |
12.46 |