| Parameter |
Value |
| Designation |
C/2016 K1 (LINEAR) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2016-07-13T09:05:23.239680Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:33:24Z |
| Obs used |
310 |
| NEO |
- |
| M1 |
8.900 |
| K1 |
22.000 |
| PC |
0.030 |
Osculating Elements
| Parameter |
Value |
| Epoch (epoch_cal, TDB) |
2016-07-28.0000000 |
| e |
1.00027414 |
| q (au) |
2.291522 |
| a (au) |
-8358.942288 |
| i (deg) |
90.845997 |
| Ω (om, deg) |
325.702598 |
| ω (w, deg) |
18.253429 |
| M (ma, deg) |
0.000019 |
Magnitude
Scatter + Global Linear
$$
M_a = (10.799 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
10.799 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.501 |
| 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) |
| 2026-05-12 00:00 |
10:09:56.35 |
+30:35:54.4 |
HIP 49685 |
17.92 |
| 2026-05-12 12:00 |
10:09:55.28 |
+30:35:27.9 |
HIP 49685 |
17.69 |
| 2026-05-13 00:00 |
10:09:54.27 |
+30:35:01.3 |
HIP 49685 |
17.48 |
| 2026-05-13 12:00 |
10:09:53.29 |
+30:34:34.4 |
HIP 49685 |
17.30 |
| 2026-05-14 00:00 |
10:09:52.37 |
+30:34:07.3 |
HIP 49685 |
17.14 |
| 2026-05-14 12:00 |
10:09:51.49 |
+30:33:40.0 |
HIP 49685 |
17.00 |
| 2026-05-15 00:00 |
10:09:50.65 |
+30:33:12.4 |
HIP 49685 |
16.88 |
| 2026-05-15 12:00 |
10:09:49.87 |
+30:32:44.7 |
HIP 49685 |
16.79 |
| 2026-05-16 00:00 |
10:09:49.13 |
+30:32:16.8 |
HIP 49685 |
16.72 |
| 2026-05-16 12:00 |
10:09:48.43 |
+30:31:48.6 |
HIP 49685 |
16.68 |
| 2026-05-17 00:00 |
10:09:47.79 |
+30:31:20.2 |
HIP 49685 |
16.66 |
| 2026-05-17 12:00 |
10:09:47.18 |
+30:30:51.7 |
HIP 49685 |
16.66 |
| 2026-05-18 00:00 |
10:09:46.63 |
+30:30:22.9 |
HIP 49685 |
16.70 |
| 2026-05-18 12:00 |
10:09:46.12 |
+30:29:54.0 |
HIP 49685 |
16.75 |
| 2026-05-19 00:00 |
10:09:45.66 |
+30:29:24.8 |
HIP 49685 |
16.83 |
| 2026-05-19 12:00 |
10:09:45.24 |
+30:28:55.5 |
HIP 49685 |
16.94 |
| 2026-05-20 00:00 |
10:09:44.87 |
+30:28:25.9 |
HIP 49685 |
17.07 |
| 2026-05-20 12:00 |
10:09:44.54 |
+30:27:56.2 |
HIP 49685 |
17.23 |
| 2026-05-21 00:00 |
10:09:44.26 |
+30:27:26.3 |
HIP 49685 |
17.40 |
| 2026-05-21 12:00 |
10:09:44.03 |
+30:26:56.2 |
HIP 49685 |
17.60 |
| 2026-05-22 00:00 |
10:09:43.84 |
+30:26:25.9 |
HIP 49685 |
17.82 |
| 2026-05-22 12:00 |
10:09:43.70 |
+30:25:55.5 |
HIP 49685 |
18.07 |
| 2026-05-23 00:00 |
10:09:43.60 |
+30:25:24.8 |
HIP 49685 |
18.33 |
| 2026-05-23 12:00 |
10:09:43.55 |
+30:24:54.0 |
HIP 49685 |
18.61 |
| 2026-05-24 00:00 |
10:09:43.54 |
+30:24:23.0 |
HIP 49685 |
18.92 |
| 2026-05-24 12:00 |
10:09:43.58 |
+30:23:51.9 |
HIP 49685 |
19.24 |
| 2026-05-25 00:00 |
10:09:43.66 |
+30:23:20.6 |
HIP 49685 |
19.58 |
| 2026-05-25 12:00 |
10:09:43.79 |
+30:22:49.1 |
HIP 49685 |
19.93 |
| 2026-05-26 00:00 |
10:09:43.96 |
+30:22:17.4 |
HIP 49685 |
20.31 |
| 2026-05-26 12:00 |
10:09:44.17 |
+30:21:45.6 |
HIP 49685 |
20.69 |
| 2026-05-27 00:00 |
10:09:44.43 |
+30:21:13.6 |
HIP 49685 |
21.10 |
| 2026-05-27 12:00 |
10:09:44.74 |
+30:20:41.5 |
HIP 49685 |
21.52 |
| 2026-05-28 00:00 |
10:09:45.09 |
+30:20:09.2 |
HIP 49685 |
21.95 |
| 2026-05-28 12:00 |
10:09:45.48 |
+30:19:36.7 |
HIP 49685 |
22.39 |
| 2026-05-29 00:00 |
10:09:45.92 |
+30:19:04.1 |
HIP 49685 |
22.85 |
| 2026-05-29 12:00 |
10:09:46.40 |
+30:18:31.4 |
HIP 49685 |
23.32 |
| 2026-05-30 00:00 |
10:09:46.92 |
+30:17:58.5 |
HIP 49685 |
23.80 |
| 2026-05-30 12:00 |
10:09:47.49 |
+30:17:25.4 |
HIP 49685 |
24.30 |
| 2026-05-31 00:00 |
10:09:48.10 |
+30:16:52.2 |
HIP 49685 |
24.80 |
| 2026-05-31 12:00 |
10:09:48.75 |
+30:16:18.9 |
HIP 49685 |
25.32 |
| 2026-06-01 00:00 |
10:09:49.45 |
+30:15:45.4 |
HIP 49685 |
25.84 |
| 2026-06-01 12:00 |
10:09:50.18 |
+30:15:11.8 |
HIP 49933 |
25.75 |
| 2026-06-02 00:00 |
10:09:50.97 |
+30:14:38.0 |
HIP 49933 |
25.46 |