| Parameter |
Value |
| Designation |
196P/Tichy |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2015-06-14T19:41:57.508800Z |
| Orbit solution date (soln_date, UTC) |
2024-04-13T16:43:01Z |
| Obs used |
459 |
| NEO |
- |
| M1 |
15.300 |
| K1 |
10.000 |
| PC |
0.030 |
Osculating Elements
| Parameter |
Value |
| Epoch (epoch_cal, TDB) |
2015-05-12.0000000 |
| e |
0.43441811 |
| q (au) |
2.134995 |
| a (au) |
3.774865 |
| i (deg) |
19.377598 |
| Ω (om, deg) |
24.256234 |
| ω (w, deg) |
11.950466 |
| M (ma, deg) |
355.454979 |
Magnitude
Scatter + Global Linear
$$
M_a = (14.053 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
14.053 |
| n |
6.000 |
| gf |
0.832 |
| gb |
-0.807 |
| k |
0.993 |
| δ90 |
1.000 |
| 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 |
13:38:10.08 |
-13:45:05.9 |
HIP 66544 |
12.50 |
| 2026-05-12 12:00 |
13:37:53.89 |
-13:44:10.5 |
HIP 66544 |
13.59 |
| 2026-05-13 00:00 |
13:37:37.83 |
-13:43:15.4 |
HIP 66544 |
15.66 |
| 2026-05-13 12:00 |
13:37:21.87 |
-13:42:20.7 |
HIP 66544 |
18.36 |
| 2026-05-14 00:00 |
13:37:06.04 |
-13:41:26.3 |
HIP 66544 |
21.44 |
| 2026-05-14 12:00 |
13:36:50.33 |
-13:40:32.3 |
HIP 66343 |
19.32 |
| 2026-05-15 00:00 |
13:36:34.74 |
-13:39:38.7 |
HIP 66343 |
15.86 |
| 2026-05-15 12:00 |
13:36:19.28 |
-13:38:45.5 |
HIP 66343 |
12.68 |
| 2026-05-16 00:00 |
13:36:03.94 |
-13:37:52.7 |
HIP 66343 |
10.00 |
| 2026-05-16 12:00 |
13:35:48.74 |
-13:37:00.3 |
HIP 66343 |
8.30 |
| 2026-05-17 00:00 |
13:35:33.66 |
-13:36:08.3 |
HIP 66343 |
8.15 |
| 2026-05-17 12:00 |
13:35:18.72 |
-13:35:16.8 |
HIP 66343 |
9.59 |
| 2026-05-18 00:00 |
13:35:03.91 |
-13:34:25.8 |
HIP 66343 |
12.03 |
| 2026-05-18 12:00 |
13:34:49.24 |
-13:33:35.3 |
HIP 66235 |
13.76 |
| 2026-05-19 00:00 |
13:34:34.71 |
-13:32:45.2 |
HIP 66235 |
12.04 |
| 2026-05-19 12:00 |
13:34:20.31 |
-13:31:55.6 |
HIP 66235 |
11.27 |
| 2026-05-20 00:00 |
13:34:06.06 |
-13:31:06.6 |
HIP 66235 |
11.61 |
| 2026-05-20 12:00 |
13:33:51.96 |
-13:30:18.1 |
HIP 66235 |
12.94 |
| 2026-05-21 00:00 |
13:33:38.00 |
-13:29:30.1 |
HIP 66235 |
14.98 |
| 2026-05-21 12:00 |
13:33:24.18 |
-13:28:42.7 |
HIP 66235 |
17.45 |
| 2026-05-22 00:00 |
13:33:10.52 |
-13:27:55.8 |
HIP 66235 |
20.18 |
| 2026-05-22 12:00 |
13:32:57.00 |
-13:27:09.5 |
HIP 66076 |
22.16 |
| 2026-05-23 00:00 |
13:32:43.64 |
-13:26:23.7 |
HIP 65949 |
21.99 |
| 2026-05-23 12:00 |
13:32:30.43 |
-13:25:38.6 |
HIP 65949 |
18.82 |
| 2026-05-24 00:00 |
13:32:17.37 |
-13:24:54.0 |
HIP 65949 |
15.73 |
| 2026-05-24 12:00 |
13:32:04.46 |
-13:24:10.1 |
HIP 65949 |
12.76 |
| 2026-05-25 00:00 |
13:31:51.72 |
-13:23:26.8 |
HIP 65949 |
9.99 |
| 2026-05-25 12:00 |
13:31:39.12 |
-13:22:44.1 |
HIP 65949 |
7.57 |
| 2026-05-26 00:00 |
13:31:26.69 |
-13:22:02.0 |
HIP 65949 |
5.89 |
| 2026-05-26 12:00 |
13:31:14.42 |
-13:21:20.6 |
HIP 65949 |
5.59 |
| 2026-05-27 00:00 |
13:31:02.31 |
-13:20:39.8 |
HIP 65949 |
6.80 |
| 2026-05-27 12:00 |
13:30:50.36 |
-13:19:59.7 |
HIP 65949 |
8.89 |
| 2026-05-28 00:00 |
13:30:38.57 |
-13:19:20.3 |
HIP 65949 |
11.34 |
| 2026-05-28 12:00 |
13:30:26.94 |
-13:18:41.5 |
HIP 65949 |
13.95 |
| 2026-05-29 00:00 |
13:30:15.48 |
-13:18:03.4 |
HIP 65949 |
16.61 |
| 2026-05-29 12:00 |
13:30:04.19 |
-13:17:26.1 |
HIP 65949 |
19.29 |
| 2026-05-30 00:00 |
13:29:53.06 |
-13:16:49.4 |
HIP 65949 |
21.96 |
| 2026-05-30 12:00 |
13:29:42.10 |
-13:16:13.4 |
HIP 65949 |
24.61 |
| 2026-05-31 00:00 |
13:29:31.30 |
-13:15:38.1 |
HIP 65949 |
27.24 |
| 2026-05-31 12:00 |
13:29:20.68 |
-13:15:03.6 |
HIP 65680 |
27.57 |
| 2026-06-01 00:00 |
13:29:10.22 |
-13:14:29.8 |
HIP 65680 |
26.26 |
| 2026-06-01 12:00 |
13:28:59.94 |
-13:13:56.7 |
HIP 65680 |
25.16 |
| 2026-06-02 00:00 |
13:28:49.82 |
-13:13:24.4 |
HIP 65623 |
23.46 |