メタデータ
| 項目 |
値 |
| Designation |
294P/LINEAR |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2014-03-02T22:57:19.949760Z |
| Orbit solution date (soln_date, UTC) |
2025-04-24T09:42:31Z |
| Obs used |
269 |
| NEO |
Yes |
| M1 |
17.900 |
| K1 |
4.500 |
| PC |
- |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2012-07-03.0000000 |
| e |
0.59553149 |
| q (au) |
1.294963 |
| a (au) |
3.201640 |
| i (deg) |
18.216347 |
| Ω (om, deg) |
312.897989 |
| ω (w, deg) |
235.321908 |
| M (ma, deg) |
255.403331 |
等級
散乱 + 全体線形
$$
M_a = (16.285 + 2.939\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
16.285 |
| n |
2.939 |
| gf |
1.000 |
| gb |
-1.000 |
| k |
0.999 |
| 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
ファインディングチャート
天体暦
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-03-26 00:00 |
21:16:05.08 |
-18:52:48.2 |
HIP 105165 |
32.04 |
| 2026-03-26 12:00 |
21:16:43.37 |
-18:48:39.7 |
HIP 105165 |
22.11 |
| 2026-03-27 00:00 |
21:17:21.43 |
-18:44:31.5 |
HIP 105165 |
12.27 |
| 2026-03-27 12:00 |
21:17:59.28 |
-18:40:23.9 |
HIP 105165 |
2.99 |
| 2026-03-28 00:00 |
21:18:36.91 |
-18:36:16.6 |
HIP 105165 |
7.84 |
| 2026-03-28 12:00 |
21:19:14.31 |
-18:32:09.8 |
HIP 105165 |
17.47 |
| 2026-03-29 00:00 |
21:19:51.50 |
-18:28:03.4 |
HIP 105165 |
27.15 |
| 2026-03-29 12:00 |
21:20:28.47 |
-18:23:57.5 |
HIP 105465 |
26.99 |
| 2026-03-30 00:00 |
21:21:05.22 |
-18:19:52.1 |
HIP 105465 |
25.95 |
| 2026-03-30 12:00 |
21:21:41.75 |
-18:15:47.1 |
HIP 105611 |
24.67 |
| 2026-03-31 00:00 |
21:22:18.06 |
-18:11:42.6 |
HIP 105611 |
16.92 |
| 2026-03-31 12:00 |
21:22:54.15 |
-18:07:38.6 |
HIP 105611 |
12.10 |
| 2026-04-01 00:00 |
21:23:30.02 |
-18:03:35.1 |
HIP 105611 |
13.64 |
| 2026-04-01 12:00 |
21:24:05.67 |
-17:59:32.1 |
HIP 105611 |
20.07 |
| 2026-04-02 00:00 |
21:24:41.10 |
-17:55:29.6 |
HIP 105844 |
26.39 |
| 2026-04-02 12:00 |
21:25:16.31 |
-17:51:27.6 |
HIP 105844 |
22.62 |
| 2026-04-03 00:00 |
21:25:51.29 |
-17:47:26.2 |
HIP 105844 |
22.35 |
| 2026-04-03 12:00 |
21:26:26.06 |
-17:43:25.2 |
HIP 105844 |
25.64 |
| 2026-04-04 00:00 |
21:27:00.60 |
-17:39:24.8 |
HIP 105892 |
23.50 |
| 2026-04-04 12:00 |
21:27:34.92 |
-17:35:25.0 |
HIP 105892 |
22.59 |
| 2026-04-05 00:00 |
21:28:09.02 |
-17:31:25.7 |
HIP 106016 |
16.24 |
| 2026-04-05 12:00 |
21:28:42.89 |
-17:27:27.0 |
HIP 106016 |
13.01 |
| 2026-04-06 00:00 |
21:29:16.55 |
-17:23:28.9 |
HIP 106016 |
15.36 |
| 2026-04-06 12:00 |
21:29:49.97 |
-17:19:31.3 |
HIP 106251 |
20.68 |
| 2026-04-07 00:00 |
21:30:23.17 |
-17:15:34.4 |
HIP 106251 |
12.38 |
| 2026-04-07 12:00 |
21:30:56.15 |
-17:11:38.0 |
HIP 106251 |
6.00 |
| 2026-04-08 00:00 |
21:31:28.90 |
-17:07:42.2 |
HIP 106251 |
8.56 |
| 2026-04-08 12:00 |
21:32:01.43 |
-17:03:47.1 |
HIP 106251 |
16.20 |
| 2026-04-09 00:00 |
21:32:33.72 |
-16:59:52.6 |
HIP 106251 |
24.51 |
| 2026-04-09 12:00 |
21:33:05.79 |
-16:55:58.7 |
HIP 106251 |
32.94 |
| 2026-04-10 00:00 |
21:33:37.64 |
-16:52:05.4 |
HIP 106621 |
33.03 |
| 2026-04-10 12:00 |
21:34:09.25 |
-16:48:12.8 |
HIP 106621 |
24.57 |
| 2026-04-11 00:00 |
21:34:40.63 |
-16:44:20.9 |
HIP 106621 |
16.19 |
| 2026-04-11 12:00 |
21:35:11.78 |
-16:40:29.7 |
HIP 106621 |
8.02 |
| 2026-04-12 00:00 |
21:35:42.71 |
-16:36:39.1 |
HIP 106621 |
2.74 |
| 2026-04-12 12:00 |
21:36:13.40 |
-16:32:49.2 |
HIP 106621 |
9.43 |
| 2026-04-13 00:00 |
21:36:43.86 |
-16:29:00.0 |
HIP 106621 |
17.50 |
| 2026-04-13 12:00 |
21:37:14.08 |
-16:25:11.5 |
HIP 106789 |
13.00 |
| 2026-04-14 00:00 |
21:37:44.07 |
-16:21:23.7 |
HIP 106789 |
6.35 |
| 2026-04-14 12:00 |
21:38:13.83 |
-16:17:36.7 |
HIP 106789 |
6.58 |
| 2026-04-15 00:00 |
21:38:43.35 |
-16:13:50.4 |
HIP 106789 |
13.24 |
| 2026-04-15 12:00 |
21:39:12.63 |
-16:10:04.8 |
HIP 106961 |
13.06 |
| 2026-04-16 00:00 |
21:39:41.67 |
-16:06:20.0 |
HIP 106961 |
6.23 |