| Parameter |
Value |
| Designation |
C/1999 K3 (LINEAR) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
1999-02-27T12:41:00.576960Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:29:59Z |
| Obs used |
56 |
| NEO |
- |
| M1 |
12.000 |
| K1 |
10.000 |
| PC |
- |
Osculating Elements
| Parameter |
Value |
| Epoch (epoch_cal, TDB) |
1999-06-05.0000000 |
| e |
0.99166663 |
| q (au) |
1.928739 |
| a (au) |
231.447744 |
| i (deg) |
92.272667 |
| Ω (om, deg) |
266.912524 |
| ω (w, deg) |
341.146990 |
| M (ma, deg) |
0.027284 |
Magnitude
Scatter + Global Linear
$$
M_a = (16.929 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
16.929 |
| n |
2.000 |
| 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) |
| 2026-06-01 00:00 |
05:48:23.07 |
+63:23:39.3 |
HIP 27346 |
13.52 |
| 2026-06-01 12:00 |
05:48:28.19 |
+63:23:31.5 |
HIP 27346 |
13.88 |
| 2026-06-02 00:00 |
05:48:33.32 |
+63:23:23.9 |
HIP 27346 |
14.26 |
| 2026-06-02 12:00 |
05:48:38.47 |
+63:23:16.4 |
HIP 27346 |
14.65 |
| 2026-06-03 00:00 |
05:48:43.63 |
+63:23:09.1 |
HIP 27346 |
15.05 |
| 2026-06-03 12:00 |
05:48:48.79 |
+63:23:02.0 |
HIP 27346 |
15.47 |
| 2026-06-04 00:00 |
05:48:53.97 |
+63:22:55.1 |
HIP 27346 |
15.89 |
| 2026-06-04 12:00 |
05:48:59.16 |
+63:22:48.3 |
HIP 27346 |
16.32 |
| 2026-06-05 00:00 |
05:49:04.35 |
+63:22:41.7 |
HIP 27346 |
16.75 |
| 2026-06-05 12:00 |
05:49:09.56 |
+63:22:35.3 |
HIP 27346 |
17.20 |
| 2026-06-06 00:00 |
05:49:14.77 |
+63:22:29.1 |
HIP 27346 |
17.65 |
| 2026-06-06 12:00 |
05:49:20.00 |
+63:22:23.1 |
HIP 27346 |
18.11 |
| 2026-06-07 00:00 |
05:49:25.23 |
+63:22:17.2 |
HIP 27346 |
18.58 |
| 2026-06-07 12:00 |
05:49:30.47 |
+63:22:11.6 |
HIP 27346 |
19.05 |
| 2026-06-08 00:00 |
05:49:35.72 |
+63:22:06.1 |
HIP 27346 |
19.52 |
| 2026-06-08 12:00 |
05:49:40.97 |
+63:22:00.8 |
HIP 27346 |
20.00 |
| 2026-06-09 00:00 |
05:49:46.24 |
+63:21:55.7 |
HIP 27346 |
20.49 |
| 2026-06-09 12:00 |
05:49:51.51 |
+63:21:50.7 |
HIP 27346 |
20.97 |
| 2026-06-10 00:00 |
05:49:56.78 |
+63:21:45.9 |
HIP 27346 |
21.47 |
| 2026-06-10 12:00 |
05:50:02.07 |
+63:21:41.4 |
HIP 27346 |
21.96 |
| 2026-06-11 00:00 |
05:50:07.35 |
+63:21:37.0 |
HIP 27346 |
22.46 |
| 2026-06-11 12:00 |
05:50:12.65 |
+63:21:32.8 |
HIP 27346 |
22.97 |
| 2026-06-12 00:00 |
05:50:17.95 |
+63:21:28.7 |
HIP 27346 |
23.47 |
| 2026-06-12 12:00 |
05:50:23.25 |
+63:21:24.9 |
HIP 27346 |
23.98 |
| 2026-06-13 00:00 |
05:50:28.56 |
+63:21:21.2 |
HIP 27346 |
24.49 |
| 2026-06-13 12:00 |
05:50:33.87 |
+63:21:17.7 |
HIP 27346 |
25.00 |
| 2026-06-14 00:00 |
05:50:39.19 |
+63:21:14.5 |
HIP 27346 |
25.52 |
| 2026-06-14 12:00 |
05:50:44.51 |
+63:21:11.3 |
HIP 27346 |
26.04 |
| 2026-06-15 00:00 |
05:50:49.83 |
+63:21:08.4 |
HIP 27346 |
26.56 |
| 2026-06-15 12:00 |
05:50:55.16 |
+63:21:05.7 |
HIP 27346 |
27.08 |
| 2026-06-16 00:00 |
05:51:00.48 |
+63:21:03.1 |
HIP 27346 |
27.60 |
| 2026-06-16 12:00 |
05:51:05.81 |
+63:21:00.7 |
HIP 27346 |
28.12 |
| 2026-06-17 00:00 |
05:51:11.14 |
+63:20:58.6 |
HIP 27346 |
28.65 |
| 2026-06-17 12:00 |
05:51:16.48 |
+63:20:56.6 |
HIP 27346 |
29.18 |
| 2026-06-18 00:00 |
05:51:21.81 |
+63:20:54.7 |
HIP 27346 |
29.70 |
| 2026-06-18 12:00 |
05:51:27.14 |
+63:20:53.1 |
HIP 27346 |
30.23 |
| 2026-06-19 00:00 |
05:51:32.48 |
+63:20:51.6 |
HIP 27346 |
30.76 |
| 2026-06-19 12:00 |
05:51:37.81 |
+63:20:50.4 |
HIP 28078 |
30.58 |
| 2026-06-20 00:00 |
05:51:43.14 |
+63:20:49.3 |
HIP 28078 |
29.98 |
| 2026-06-20 12:00 |
05:51:48.48 |
+63:20:48.4 |
HIP 28078 |
29.38 |
| 2026-06-21 00:00 |
05:51:53.81 |
+63:20:47.7 |
HIP 28078 |
28.79 |
| 2026-06-21 12:00 |
05:51:59.14 |
+63:20:47.1 |
HIP 28078 |
28.20 |
| 2026-06-22 00:00 |
05:52:04.46 |
+63:20:46.8 |
HIP 28078 |
27.60 |