メタデータ
| 項目 |
値 |
| Designation |
P/2014 C1 (TOTAS) |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2013-12-22T14:38:36.977280Z |
| Orbit solution date (soln_date, UTC) |
2024-04-15T15:43:28Z |
| Obs used |
56 |
| NEO |
- |
| M1 |
11.500 |
| K1 |
26.250 |
| PC |
- |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2014-02-20.0000000 |
| e |
0.48238458 |
| q (au) |
1.707632 |
| a (au) |
3.299036 |
| i (deg) |
2.693313 |
| Ω (om, deg) |
168.484412 |
| ω (w, deg) |
25.769502 |
| M (ma, deg) |
9.768677 |
等級
散乱 + 全体線形
$$
M_a = (13.524 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
13.524 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.872 |
| k |
1.000 |
| δ90 |
10.000 |
| 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) |
| 2026-03-26 00:00 |
05:21:28.76 |
+25:39:10.0 |
HIP 24905 |
33.03 |
| 2026-03-26 12:00 |
05:21:44.91 |
+25:39:14.9 |
HIP 25089 |
32.66 |
| 2026-03-27 00:00 |
05:22:01.24 |
+25:39:19.9 |
HIP 25089 |
31.97 |
| 2026-03-27 12:00 |
05:22:17.74 |
+25:39:25.1 |
HIP 25089 |
31.69 |
| 2026-03-28 00:00 |
05:22:34.43 |
+25:39:30.3 |
HIP 25089 |
31.85 |
| 2026-03-28 12:00 |
05:22:51.29 |
+25:39:35.6 |
HIP 25089 |
32.45 |
| 2026-03-29 00:00 |
05:23:08.33 |
+25:39:41.0 |
HIP 25089 |
33.49 |
| 2026-03-29 12:00 |
05:23:25.54 |
+25:39:46.5 |
HIP 25089 |
34.93 |
| 2026-03-30 00:00 |
05:23:42.92 |
+25:39:52.1 |
HIP 25400 |
31.76 |
| 2026-03-30 12:00 |
05:24:00.48 |
+25:39:57.8 |
HIP 25400 |
27.86 |
| 2026-03-31 00:00 |
05:24:18.21 |
+25:40:03.5 |
HIP 25400 |
23.94 |
| 2026-03-31 12:00 |
05:24:36.11 |
+25:40:09.4 |
HIP 25400 |
20.02 |
| 2026-04-01 00:00 |
05:24:54.17 |
+25:40:15.2 |
HIP 25400 |
16.10 |
| 2026-04-01 12:00 |
05:25:12.41 |
+25:40:21.2 |
HIP 25400 |
12.26 |
| 2026-04-02 00:00 |
05:25:30.81 |
+25:40:27.2 |
HIP 25400 |
8.63 |
| 2026-04-02 12:00 |
05:25:49.38 |
+25:40:33.3 |
HIP 25400 |
5.74 |
| 2026-04-03 00:00 |
05:26:08.11 |
+25:40:39.4 |
HIP 25400 |
5.14 |
| 2026-04-03 12:00 |
05:26:27.01 |
+25:40:45.6 |
HIP 25400 |
7.48 |
| 2026-04-04 00:00 |
05:26:46.07 |
+25:40:51.8 |
HIP 25400 |
11.07 |
| 2026-04-04 12:00 |
05:27:05.29 |
+25:40:58.0 |
HIP 25400 |
15.06 |
| 2026-04-05 00:00 |
05:27:24.67 |
+25:41:04.3 |
HIP 25400 |
19.24 |
| 2026-04-05 12:00 |
05:27:44.21 |
+25:41:10.6 |
HIP 25400 |
23.52 |
| 2026-04-06 00:00 |
05:28:03.91 |
+25:41:17.0 |
HIP 25556 |
27.33 |
| 2026-04-06 12:00 |
05:28:23.77 |
+25:41:23.4 |
HIP 25556 |
28.24 |
| 2026-04-07 00:00 |
05:28:43.78 |
+25:41:29.7 |
HIP 25556 |
29.82 |
| 2026-04-07 12:00 |
05:29:03.95 |
+25:41:36.2 |
HIP 25792 |
27.63 |
| 2026-04-08 00:00 |
05:29:24.27 |
+25:41:42.6 |
HIP 25792 |
24.67 |
| 2026-04-08 12:00 |
05:29:44.75 |
+25:41:49.0 |
HIP 25792 |
22.25 |
| 2026-04-09 00:00 |
05:30:05.38 |
+25:41:55.4 |
HIP 25792 |
20.59 |
| 2026-04-09 12:00 |
05:30:26.16 |
+25:42:01.8 |
HIP 25792 |
19.89 |
| 2026-04-10 00:00 |
05:30:47.10 |
+25:42:08.3 |
HIP 25792 |
20.29 |
| 2026-04-10 12:00 |
05:31:08.18 |
+25:42:14.7 |
HIP 25792 |
21.74 |
| 2026-04-11 00:00 |
05:31:29.41 |
+25:42:21.1 |
HIP 25792 |
24.07 |
| 2026-04-11 12:00 |
05:31:50.79 |
+25:42:27.5 |
HIP 25792 |
27.07 |
| 2026-04-12 00:00 |
05:32:12.32 |
+25:42:33.8 |
HIP 25792 |
30.57 |
| 2026-04-12 12:00 |
05:32:34.00 |
+25:42:40.1 |
HIP 26177 |
32.56 |
| 2026-04-13 00:00 |
05:32:55.81 |
+25:42:46.4 |
HIP 26177 |
27.91 |
| 2026-04-13 12:00 |
05:33:17.78 |
+25:42:52.7 |
HIP 26177 |
23.34 |
| 2026-04-14 00:00 |
05:33:39.88 |
+25:42:58.9 |
HIP 26177 |
18.93 |
| 2026-04-14 12:00 |
05:34:02.13 |
+25:43:05.1 |
HIP 26177 |
14.86 |
| 2026-04-15 00:00 |
05:34:24.52 |
+25:43:11.2 |
HIP 26177 |
11.54 |
| 2026-04-15 12:00 |
05:34:47.05 |
+25:43:17.3 |
HIP 26225 |
9.37 |
| 2026-04-16 00:00 |
05:35:09.72 |
+25:43:23.4 |
HIP 26225 |
6.57 |