11P/Tempel-Swift-LINEAR
メタデータ
| 項目 | 値 |
|---|---|
| Designation | 11P/Tempel-Swift-LINEAR |
| Type | P |
| Perihelion (tp_cal, UTC) | 2020-11-26T06:05:13.441920Z |
| Orbit solution date (soln_date, UTC) | 2026-09-21T09:58:12Z |
| Obs used | 1389 |
| NEO | - |
| M1 | 15.300 |
| K1 | 19.750 |
| PC | 0.030 |
オスキュレーティング軌道要素
| 項目 | 値 |
|---|---|
| Epoch (epoch_cal, TDB) | 2020-09-07.0000000 |
| e | 0.57695922 |
| q (au) | 1.388754 |
| a (au) | 3.282790 |
| i (deg) | 14.420582 |
| Ω (om, deg) | 238.916634 |
| ω (w, deg) | 167.941740 |
| M (ma, deg) | 346.701459 |
等級
散乱 + 全体線形
$$ M_a = (19.895 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta $$ $$ \theta = 180^\circ - \alpha $$ $$ \Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b) $$ $$ \Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1 $$
モデル定数
| 項目 | 値 |
|---|---|
| H0 | 19.895 |
| n | 2.000 |
| gf | 1.000 |
| gb | -1.000 |
| k | 0.800 |
| 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
残差 (区間線形)
$$\epsilon = a \log_{10} r_{\mathrm{au}} + b$$
| 開始日 (UTC) | 終了日 (UTC) | a | b |
|---|---|---|---|
| 2024-08-21 | 2026-09-25 | -12.5088 | +2.588 |
log10 r = log10(太陽距離/AU)、Δ = 地球距離(AU)
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) |
|---|---|---|---|---|
| 2026-09-20 00:00 | 01:39:08.54 | +39:04:55.5 | HIP 7773 | 12.63 |
| 2026-09-20 12:00 | 01:39:54.66 | +39:08:07.3 | HIP 7773 | 10.09 |
| 2026-09-21 00:00 | 01:40:40.74 | +39:11:10.5 | HIP 7773 | 14.87 |
| 2026-09-21 12:00 | 01:41:26.76 | +39:14:04.9 | HIP 7951 | 13.28 |
| 2026-09-22 00:00 | 01:42:12.73 | +39:16:50.5 | HIP 7951 | 7.95 |
| 2026-09-22 12:00 | 01:42:58.65 | +39:19:27.0 | HIP 7951 | 11.16 |
| 2026-09-23 00:00 | 01:43:44.52 | +39:21:54.3 | HIP 7951 | 18.90 |
| 2026-09-23 12:00 | 01:44:30.32 | +39:24:12.3 | HIP 8238 | 21.78 |
| 2026-09-24 00:00 | 01:45:16.07 | +39:26:20.9 | HIP 8238 | 13.72 |
| 2026-09-24 12:00 | 01:46:01.75 | +39:28:19.9 | HIP 8238 | 8.35 |
| 2026-09-25 00:00 | 01:46:47.37 | +39:30:09.2 | HIP 8248 | 10.64 |
| 2026-09-25 12:00 | 01:47:32.92 | +39:31:48.6 | HIP 8248 | 16.98 |
| 2026-09-26 00:00 | 01:48:18.40 | +39:33:18.0 | HIP 8478 | 13.09 |
| 2026-09-26 12:00 | 01:49:03.81 | +39:34:37.3 | HIP 8478 | 8.01 |
| 2026-09-27 00:00 | 01:49:49.14 | +39:35:46.3 | HIP 8478 | 10.51 |
| 2026-09-27 12:00 | 01:50:34.39 | +39:36:44.9 | HIP 8478 | 17.57 |
| 2026-09-28 00:00 | 01:51:19.55 | +39:37:32.9 | HIP 8478 | 25.62 |
| 2026-09-28 12:00 | 01:52:04.63 | +39:38:10.1 | HIP 8838 | 23.40 |
| 2026-09-29 00:00 | 01:52:49.61 | +39:38:36.5 | HIP 8838 | 17.21 |
| 2026-09-29 12:00 | 01:53:34.50 | +39:38:51.8 | HIP 8838 | 14.14 |
| 2026-09-30 00:00 | 01:54:19.28 | +39:38:55.9 | HIP 8838 | 16.05 |
| 2026-09-30 12:00 | 01:55:03.97 | +39:38:48.8 | HIP 8911 | 18.61 |
| 2026-10-01 00:00 | 01:55:48.54 | +39:38:30.1 | HIP 8911 | 22.40 |
| 2026-10-01 12:00 | 01:56:33.00 | +39:37:59.7 | HIP 9129 | 24.56 |
| 2026-10-02 00:00 | 01:57:17.35 | +39:37:17.6 | HIP 9129 | 20.53 |
| 2026-10-02 12:00 | 01:58:01.57 | +39:36:23.5 | HIP 9129 | 19.47 |
| 2026-10-03 00:00 | 01:58:45.67 | +39:35:17.3 | HIP 9370 | 19.22 |
| 2026-10-03 12:00 | 01:59:29.65 | +39:33:58.8 | HIP 9370 | 10.65 |
| 2026-10-04 00:00 | 02:00:13.49 | +39:32:28.0 | HIP 9370 | 2.07 |
| 2026-10-04 12:00 | 02:00:57.20 | +39:30:44.5 | HIP 9370 | 6.54 |
| 2026-10-05 00:00 | 02:01:40.77 | +39:28:48.4 | HIP 9401 | 13.45 |
| 2026-10-05 12:00 | 02:02:24.21 | +39:26:39.4 | HIP 9401 | 21.56 |
| 2026-10-06 00:00 | 02:03:07.50 | +39:24:17.3 | HIP 9667 | 13.97 |
| 2026-10-06 12:00 | 02:03:50.64 | +39:21:42.2 | HIP 9667 | 6.17 |
| 2026-10-07 00:00 | 02:04:33.64 | +39:18:53.7 | HIP 9667 | 5.96 |
| 2026-10-07 12:00 | 02:05:16.49 | +39:15:51.9 | HIP 9700 | 11.84 |
| 2026-10-08 00:00 | 02:05:59.19 | +39:12:36.4 | HIP 9822 | 19.27 |
| 2026-10-08 12:00 | 02:06:41.74 | +39:09:07.4 | HIP 9822 | 15.50 |
| 2026-10-09 00:00 | 02:07:24.14 | +39:05:24.5 | HIP 9849 | 15.98 |
| 2026-10-09 12:00 | 02:08:06.38 | +39:01:27.6 | HIP 9849 | 19.09 |
| 2026-10-10 00:00 | 02:08:48.47 | +38:57:16.8 | HIP 10006 | 23.66 |
| 2026-10-10 12:00 | 02:09:30.41 | +38:52:51.8 | HIP 10176 | 18.63 |
| 2026-10-11 00:00 | 02:10:12.19 | +38:48:12.5 | HIP 10176 | 16.22 |