メタデータ
| 項目 |
値 |
| Designation |
148P/Anderson-LINEAR |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2015-06-13T16:15:58.455360Z |
| Orbit solution date (soln_date, UTC) |
2024-05-15T12:05:54Z |
| Obs used |
250 |
| NEO |
- |
| M1 |
13.000 |
| K1 |
14.000 |
| PC |
0.030 |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2012-11-05.0000000 |
| e |
0.53932159 |
| q (au) |
1.694251 |
| a (au) |
3.677730 |
| i (deg) |
3.682208 |
| Ω (om, deg) |
89.790123 |
| ω (w, deg) |
6.596200 |
| M (ma, deg) |
227.148123 |
等級
散乱 + 全体線形
$$
M_a = (11.853 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
11.853 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.923 |
| 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) |
| 2026-07-29 00:00 |
19:11:22.14 |
-24:00:18.4 |
HIP 94238 |
11.93 |
| 2026-07-29 12:00 |
19:11:03.85 |
-24:00:52.8 |
HIP 94238 |
10.25 |
| 2026-07-30 00:00 |
19:10:45.65 |
-24:01:26.7 |
HIP 94238 |
10.17 |
| 2026-07-30 12:00 |
19:10:27.54 |
-24:02:00.2 |
HIP 94238 |
11.70 |
| 2026-07-31 00:00 |
19:10:09.53 |
-24:02:33.4 |
HIP 94238 |
14.30 |
| 2026-07-31 12:00 |
19:09:51.63 |
-24:03:06.1 |
HIP 94238 |
17.49 |
| 2026-08-01 00:00 |
19:09:33.82 |
-24:03:38.5 |
HIP 94238 |
20.99 |
| 2026-08-01 12:00 |
19:09:16.13 |
-24:04:10.5 |
HIP 94238 |
24.65 |
| 2026-08-02 00:00 |
19:08:58.54 |
-24:04:42.1 |
HIP 93902 |
26.93 |
| 2026-08-02 12:00 |
19:08:41.07 |
-24:05:13.3 |
HIP 93902 |
23.78 |
| 2026-08-03 00:00 |
19:08:23.70 |
-24:05:44.1 |
HIP 93902 |
20.94 |
| 2026-08-03 12:00 |
19:08:06.46 |
-24:06:14.5 |
HIP 93902 |
18.55 |
| 2026-08-04 00:00 |
19:07:49.33 |
-24:06:44.5 |
HIP 93902 |
16.77 |
| 2026-08-04 12:00 |
19:07:32.32 |
-24:07:14.1 |
HIP 93902 |
15.80 |
| 2026-08-05 00:00 |
19:07:15.44 |
-24:07:43.3 |
HIP 93902 |
15.77 |
| 2026-08-05 12:00 |
19:06:58.68 |
-24:08:12.1 |
HIP 93902 |
16.66 |
| 2026-08-06 00:00 |
19:06:42.05 |
-24:08:40.5 |
HIP 93902 |
18.31 |
| 2026-08-06 12:00 |
19:06:25.55 |
-24:09:08.5 |
HIP 93902 |
20.53 |
| 2026-08-07 00:00 |
19:06:09.18 |
-24:09:36.1 |
HIP 93902 |
23.14 |
| 2026-08-07 12:00 |
19:05:52.95 |
-24:10:03.2 |
HIP 93902 |
26.00 |
| 2026-08-08 00:00 |
19:05:36.85 |
-24:10:30.0 |
HIP 93902 |
29.04 |
| 2026-08-08 12:00 |
19:05:20.90 |
-24:10:56.4 |
HIP 93723 |
29.47 |
| 2026-08-09 00:00 |
19:05:05.08 |
-24:11:22.4 |
HIP 93723 |
28.67 |
| 2026-08-09 12:00 |
19:04:49.41 |
-24:11:48.0 |
HIP 93723 |
28.32 |
| 2026-08-10 00:00 |
19:04:33.89 |
-24:12:13.2 |
HIP 93516 |
27.10 |
| 2026-08-10 12:00 |
19:04:18.51 |
-24:12:38.0 |
HIP 93516 |
23.69 |
| 2026-08-11 00:00 |
19:04:03.28 |
-24:13:02.3 |
HIP 93516 |
20.36 |
| 2026-08-11 12:00 |
19:03:48.21 |
-24:13:26.3 |
HIP 93516 |
17.13 |
| 2026-08-12 00:00 |
19:03:33.29 |
-24:13:49.9 |
HIP 93516 |
14.04 |
| 2026-08-12 12:00 |
19:03:18.53 |
-24:14:13.0 |
HIP 93516 |
11.18 |
| 2026-08-13 00:00 |
19:03:03.93 |
-24:14:35.8 |
HIP 93516 |
8.73 |
| 2026-08-13 12:00 |
19:02:49.49 |
-24:14:58.1 |
HIP 93516 |
7.07 |
| 2026-08-14 00:00 |
19:02:35.21 |
-24:15:20.1 |
HIP 93516 |
6.76 |
| 2026-08-14 12:00 |
19:02:21.10 |
-24:15:41.6 |
HIP 93516 |
7.91 |
| 2026-08-15 00:00 |
19:02:07.15 |
-24:16:02.8 |
HIP 93516 |
9.99 |
| 2026-08-15 12:00 |
19:01:53.37 |
-24:16:23.6 |
HIP 93516 |
12.52 |
| 2026-08-16 00:00 |
19:01:39.76 |
-24:16:43.9 |
HIP 93516 |
15.25 |
| 2026-08-16 12:00 |
19:01:26.33 |
-24:17:03.9 |
HIP 93516 |
18.07 |
| 2026-08-17 00:00 |
19:01:13.07 |
-24:17:23.4 |
HIP 93264 |
19.19 |
| 2026-08-17 12:00 |
19:00:59.98 |
-24:17:42.6 |
HIP 93264 |
16.30 |
| 2026-08-18 00:00 |
19:00:47.07 |
-24:18:01.3 |
HIP 93264 |
13.48 |
| 2026-08-18 12:00 |
19:00:34.33 |
-24:18:19.7 |
HIP 93264 |
10.78 |
| 2026-08-19 00:00 |
19:00:21.78 |
-24:18:37.7 |
HIP 93264 |
8.27 |