メタデータ
| 項目 |
値 |
| 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 |
オスキュレーティング軌道要素
| 項目 |
値 |
| 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 |
等級
散乱 + 全体線形
$$
M_a = (14.054 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
14.054 |
| n |
6.000 |
| gf |
0.800 |
| gb |
-0.807 |
| k |
0.993 |
| δ90 |
1.000 |
| パラメータ |
記号 |
範囲 |
説明 |
| 太陽・地球距離が1 AUのときの絶対等級 |
H0 |
-5 to 20 |
彗星の固有の明るさ |
| 測光スロープパラメータ |
n |
2 to 6 |
太陽距離に対する明るさ変化率 |
| 前方散乱非対称係数 |
gf |
0.8 to 1 |
前方散乱の強さ |
| 後方散乱非対称係数 |
gb |
-1 to -0.5 |
後方散乱の強さ |
| 分配係数 |
k |
0.8 to 1 |
前方/後方散乱の寄与比 |
| ダスト/ガス明るさ比 |
δ90 |
1 to 10 |
ダスト散乱とガス放射の相対寄与 |
参考: EPSC-DPS2025-160
天体暦
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-09-20 00:00 |
13:56:29.17 |
-16:47:29.4 |
HIP 68090 |
35.72 |
| 2026-09-20 12:00 |
13:56:49.63 |
-16:49:37.0 |
HIP 68090 |
38.22 |
| 2026-09-21 00:00 |
13:57:10.15 |
-16:51:45.0 |
HIP 68090 |
41.28 |
| 2026-09-21 12:00 |
13:57:30.74 |
-16:53:53.3 |
HIP 68090 |
44.78 |
| 2026-09-22 00:00 |
13:57:51.40 |
-16:56:01.9 |
HIP 68268 |
42.66 |
| 2026-09-22 12:00 |
13:58:12.12 |
-16:58:10.8 |
HIP 68268 |
39.73 |
| 2026-09-23 00:00 |
13:58:32.90 |
-17:00:20.0 |
HIP 68268 |
37.34 |
| 2026-09-23 12:00 |
13:58:53.75 |
-17:02:29.6 |
HIP 68307 |
35.32 |
| 2026-09-24 00:00 |
13:59:14.66 |
-17:04:39.4 |
HIP 68307 |
33.42 |
| 2026-09-24 12:00 |
13:59:35.63 |
-17:06:49.6 |
HIP 68307 |
32.33 |
| 2026-09-25 00:00 |
13:59:56.66 |
-17:09:00.0 |
HIP 68307 |
32.15 |
| 2026-09-25 12:00 |
14:00:17.76 |
-17:11:10.7 |
HIP 68307 |
32.88 |
| 2026-09-26 00:00 |
14:00:38.91 |
-17:13:21.8 |
HIP 68307 |
34.49 |
| 2026-09-26 12:00 |
14:01:00.13 |
-17:15:33.1 |
HIP 68643 |
30.31 |
| 2026-09-27 00:00 |
14:01:21.40 |
-17:17:44.7 |
HIP 68643 |
24.90 |
| 2026-09-27 12:00 |
14:01:42.73 |
-17:19:56.5 |
HIP 68643 |
19.55 |
| 2026-09-28 00:00 |
14:02:04.12 |
-17:22:08.7 |
HIP 68643 |
14.33 |
| 2026-09-28 12:00 |
14:02:25.57 |
-17:24:21.1 |
HIP 68643 |
9.50 |
| 2026-09-29 00:00 |
14:02:47.08 |
-17:26:33.7 |
HIP 68643 |
6.11 |
| 2026-09-29 12:00 |
14:03:08.64 |
-17:28:46.7 |
HIP 68643 |
6.84 |
| 2026-09-30 00:00 |
14:03:30.25 |
-17:30:59.9 |
HIP 68643 |
10.92 |
| 2026-09-30 12:00 |
14:03:51.93 |
-17:33:13.3 |
HIP 68643 |
15.97 |
| 2026-10-01 00:00 |
14:04:13.66 |
-17:35:27.0 |
HIP 68643 |
21.33 |
| 2026-10-01 12:00 |
14:04:35.44 |
-17:37:41.0 |
HIP 68881 |
23.87 |
| 2026-10-02 00:00 |
14:04:57.28 |
-17:39:55.2 |
HIP 68881 |
18.44 |
| 2026-10-02 12:00 |
14:05:19.17 |
-17:42:09.7 |
HIP 68881 |
13.20 |
| 2026-10-03 00:00 |
14:05:41.11 |
-17:44:24.4 |
HIP 68881 |
8.53 |
| 2026-10-03 12:00 |
14:06:03.10 |
-17:46:39.3 |
HIP 68881 |
5.99 |
| 2026-10-04 00:00 |
14:06:25.15 |
-17:48:54.5 |
HIP 68881 |
8.01 |
| 2026-10-04 12:00 |
14:06:47.25 |
-17:51:09.9 |
HIP 68881 |
12.57 |
| 2026-10-05 00:00 |
14:07:09.40 |
-17:53:25.5 |
HIP 68881 |
17.82 |
| 2026-10-05 12:00 |
14:07:31.60 |
-17:55:41.4 |
HIP 69111 |
22.03 |
| 2026-10-06 00:00 |
14:07:53.85 |
-17:57:57.5 |
HIP 69111 |
19.29 |
| 2026-10-06 12:00 |
14:08:16.15 |
-18:00:13.8 |
HIP 69111 |
18.02 |
| 2026-10-07 00:00 |
14:08:38.49 |
-18:02:30.3 |
HIP 69111 |
18.55 |
| 2026-10-07 12:00 |
14:09:00.89 |
-18:04:47.0 |
HIP 69111 |
20.75 |
| 2026-10-08 00:00 |
14:09:23.33 |
-18:07:03.9 |
HIP 69247 |
18.40 |
| 2026-10-08 12:00 |
14:09:45.81 |
-18:09:21.0 |
HIP 69247 |
15.10 |
| 2026-10-09 00:00 |
14:10:08.35 |
-18:11:38.4 |
HIP 69247 |
13.60 |
| 2026-10-09 12:00 |
14:10:30.92 |
-18:13:55.9 |
HIP 69247 |
14.49 |
| 2026-10-10 00:00 |
14:10:53.54 |
-18:16:13.6 |
HIP 69247 |
17.42 |
| 2026-10-10 12:00 |
14:11:16.21 |
-18:18:31.5 |
HIP 69247 |
21.57 |
| 2026-10-11 00:00 |
14:11:38.92 |
-18:20:49.5 |
HIP 69247 |
26.38 |