| Parameter |
Value |
| Designation |
C/2012 T6 (Kowalski) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2012-08-26T09:14:54.784320Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:32:24Z |
| Obs used |
142 |
| NEO |
- |
| M1 |
15.700 |
| K1 |
7.000 |
| PC |
- |
Osculating Elements
| Parameter |
Value |
| Epoch (epoch_cal, TDB) |
2012-11-03.0000000 |
| e |
0.87633751 |
| q (au) |
1.775087 |
| a (au) |
14.354288 |
| i (deg) |
33.275501 |
| Ω (om, deg) |
186.220461 |
| ω (w, deg) |
198.098653 |
| M (ma, deg) |
1.243507 |
Magnitude
Scatter + Global Linear
$$
M_a = (14.029 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
14.029 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.536 |
| 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 |
12:32:39.51 |
-00:42:06.0 |
HIP 61240 |
26.14 |
| 2026-07-29 12:00 |
12:32:42.10 |
-00:42:22.2 |
HIP 61240 |
26.29 |
| 2026-07-30 00:00 |
12:32:44.72 |
-00:42:38.6 |
HIP 61240 |
26.47 |
| 2026-07-30 12:00 |
12:32:47.38 |
-00:42:55.1 |
HIP 61240 |
26.66 |
| 2026-07-31 00:00 |
12:32:50.07 |
-00:43:11.9 |
HIP 61240 |
26.87 |
| 2026-07-31 12:00 |
12:32:52.80 |
-00:43:28.8 |
HIP 61240 |
27.11 |
| 2026-08-01 00:00 |
12:32:55.55 |
-00:43:46.0 |
HIP 61240 |
27.36 |
| 2026-08-01 12:00 |
12:32:58.34 |
-00:44:03.4 |
HIP 61240 |
27.64 |
| 2026-08-02 00:00 |
12:33:01.16 |
-00:44:20.9 |
HIP 61240 |
27.94 |
| 2026-08-02 12:00 |
12:33:04.02 |
-00:44:38.6 |
HIP 61240 |
28.26 |
| 2026-08-03 00:00 |
12:33:06.90 |
-00:44:56.5 |
HIP 61240 |
28.60 |
| 2026-08-03 12:00 |
12:33:09.82 |
-00:45:14.7 |
HIP 61240 |
28.96 |
| 2026-08-04 00:00 |
12:33:12.77 |
-00:45:33.0 |
HIP 61240 |
29.34 |
| 2026-08-04 12:00 |
12:33:15.75 |
-00:45:51.4 |
HIP 61240 |
29.74 |
| 2026-08-05 00:00 |
12:33:18.76 |
-00:46:10.1 |
HIP 61240 |
30.16 |
| 2026-08-05 12:00 |
12:33:21.80 |
-00:46:29.0 |
HIP 61240 |
30.61 |
| 2026-08-06 00:00 |
12:33:24.88 |
-00:46:48.0 |
HIP 61240 |
31.07 |
| 2026-08-06 12:00 |
12:33:27.98 |
-00:47:07.2 |
HIP 61240 |
31.55 |
| 2026-08-07 00:00 |
12:33:31.12 |
-00:47:26.6 |
HIP 61240 |
32.05 |
| 2026-08-07 12:00 |
12:33:34.28 |
-00:47:46.2 |
HIP 61240 |
32.58 |
| 2026-08-08 00:00 |
12:33:37.48 |
-00:48:05.9 |
HIP 61240 |
33.12 |
| 2026-08-08 12:00 |
12:33:40.71 |
-00:48:25.8 |
HIP 61240 |
33.68 |
| 2026-08-09 00:00 |
12:33:43.97 |
-00:48:45.9 |
HIP 61240 |
34.25 |
| 2026-08-09 12:00 |
12:33:47.25 |
-00:49:06.2 |
HIP 61240 |
34.85 |
| 2026-08-10 00:00 |
12:33:50.57 |
-00:49:26.7 |
HIP 61240 |
35.46 |
| 2026-08-10 12:00 |
12:33:53.91 |
-00:49:47.3 |
HIP 61358 |
35.43 |
| 2026-08-11 00:00 |
12:33:57.29 |
-00:50:08.1 |
HIP 61358 |
34.93 |
| 2026-08-11 12:00 |
12:34:00.69 |
-00:50:29.0 |
HIP 61358 |
34.44 |
| 2026-08-12 00:00 |
12:34:04.12 |
-00:50:50.1 |
HIP 61358 |
33.96 |
| 2026-08-12 12:00 |
12:34:07.59 |
-00:51:11.4 |
HIP 61358 |
33.50 |
| 2026-08-13 00:00 |
12:34:11.07 |
-00:51:32.8 |
HIP 61358 |
33.05 |
| 2026-08-13 12:00 |
12:34:14.59 |
-00:51:54.4 |
HIP 61358 |
32.62 |
| 2026-08-14 00:00 |
12:34:18.14 |
-00:52:16.2 |
HIP 61358 |
32.21 |
| 2026-08-14 12:00 |
12:34:21.71 |
-00:52:38.1 |
HIP 61358 |
31.83 |
| 2026-08-15 00:00 |
12:34:25.31 |
-00:53:00.1 |
HIP 61358 |
31.46 |
| 2026-08-15 12:00 |
12:34:28.94 |
-00:53:22.3 |
HIP 61358 |
31.12 |
| 2026-08-16 00:00 |
12:34:32.59 |
-00:53:44.7 |
HIP 61358 |
30.80 |
| 2026-08-16 12:00 |
12:34:36.27 |
-00:54:07.2 |
HIP 61358 |
30.51 |
| 2026-08-17 00:00 |
12:34:39.98 |
-00:54:29.9 |
HIP 61358 |
30.25 |
| 2026-08-17 12:00 |
12:34:43.71 |
-00:54:52.7 |
HIP 61358 |
30.02 |
| 2026-08-18 00:00 |
12:34:47.47 |
-00:55:15.6 |
HIP 61358 |
29.82 |
| 2026-08-18 12:00 |
12:34:51.26 |
-00:55:38.7 |
HIP 61358 |
29.65 |
| 2026-08-19 00:00 |
12:34:55.06 |
-00:56:01.9 |
HIP 61358 |
29.52 |