メタデータ
| 項目 |
値 |
| Designation |
C/2010 S1 (LINEAR) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2013-05-20T07:54:44.360640Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:31:47Z |
| Obs used |
8511 |
| NEO |
- |
| M1 |
5.800 |
| K1 |
6.750 |
| PC |
- |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2012-10-29.0000000 |
| e |
1.00124864 |
| q (au) |
5.899919 |
| a (au) |
-4725.086529 |
| i (deg) |
125.335283 |
| Ω (om, deg) |
93.432292 |
| ω (w, deg) |
118.617187 |
| M (ma, deg) |
-0.000617 |
等級
散乱 + 全体線形
$$
M_a = (1.804 + 4.182\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
1.804 |
| n |
4.182 |
| gf |
1.000 |
| gb |
-0.503 |
| 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
残差 (区間線形)
$$\epsilon = a \log_{10} r_{\mathrm{au}} + b$$
| 開始日 (UTC) |
終了日 (UTC) |
a |
b |
| 2010-09-21 |
2011-08-06 |
+19.8672 |
-18.186 |
| 2011-08-06 |
2013-05-20 |
-7.0625 |
+5.448 |
| 2013-05-21 |
2014-07-27 |
+22.0489 |
-17.120 |
| 2014-07-27 |
2015-09-15 |
-9.4589 |
+8.899 |
log10 r = log10(太陽距離/AU)、Δ = 地球距離(AU)
天体暦
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-09-20 00:00 |
13:06:52.12 |
-57:32:22.5 |
HIP 63966 |
18.46 |
| 2026-09-20 12:00 |
13:06:58.06 |
-57:32:20.2 |
HIP 63966 |
18.55 |
| 2026-09-21 00:00 |
13:07:04.01 |
-57:32:18.3 |
HIP 63966 |
18.69 |
| 2026-09-21 12:00 |
13:07:09.99 |
-57:32:16.8 |
HIP 63966 |
18.87 |
| 2026-09-22 00:00 |
13:07:15.99 |
-57:32:15.8 |
HIP 63966 |
19.09 |
| 2026-09-22 12:00 |
13:07:22.00 |
-57:32:15.2 |
HIP 63966 |
19.34 |
| 2026-09-23 00:00 |
13:07:28.03 |
-57:32:15.0 |
HIP 63966 |
19.64 |
| 2026-09-23 12:00 |
13:07:34.08 |
-57:32:15.2 |
HIP 63966 |
19.97 |
| 2026-09-24 00:00 |
13:07:40.15 |
-57:32:15.9 |
HIP 64197 |
19.85 |
| 2026-09-24 12:00 |
13:07:46.23 |
-57:32:17.0 |
HIP 64197 |
19.26 |
| 2026-09-25 00:00 |
13:07:52.33 |
-57:32:18.5 |
HIP 64197 |
18.69 |
| 2026-09-25 12:00 |
13:07:58.44 |
-57:32:20.4 |
HIP 64197 |
18.12 |
| 2026-09-26 00:00 |
13:08:04.57 |
-57:32:22.8 |
HIP 64197 |
17.57 |
| 2026-09-26 12:00 |
13:08:10.71 |
-57:32:25.5 |
HIP 64197 |
17.04 |
| 2026-09-27 00:00 |
13:08:16.87 |
-57:32:28.7 |
HIP 64197 |
16.52 |
| 2026-09-27 12:00 |
13:08:23.05 |
-57:32:32.4 |
HIP 64197 |
16.02 |
| 2026-09-28 00:00 |
13:08:29.23 |
-57:32:36.4 |
HIP 64197 |
15.55 |
| 2026-09-28 12:00 |
13:08:35.43 |
-57:32:40.9 |
HIP 64197 |
15.09 |
| 2026-09-29 00:00 |
13:08:41.64 |
-57:32:45.8 |
HIP 64287 |
14.65 |
| 2026-09-29 12:00 |
13:08:47.87 |
-57:32:51.1 |
HIP 64287 |
13.82 |
| 2026-09-30 00:00 |
13:08:54.10 |
-57:32:56.8 |
HIP 64287 |
12.99 |
| 2026-09-30 12:00 |
13:09:00.35 |
-57:33:03.0 |
HIP 64287 |
12.16 |
| 2026-10-01 00:00 |
13:09:06.61 |
-57:33:09.5 |
HIP 64287 |
11.33 |
| 2026-10-01 12:00 |
13:09:12.88 |
-57:33:16.5 |
HIP 64287 |
10.50 |
| 2026-10-02 00:00 |
13:09:19.16 |
-57:33:23.9 |
HIP 64287 |
9.68 |
| 2026-10-02 12:00 |
13:09:25.45 |
-57:33:31.8 |
HIP 64287 |
8.86 |
| 2026-10-03 00:00 |
13:09:31.75 |
-57:33:40.0 |
HIP 64287 |
8.04 |
| 2026-10-03 12:00 |
13:09:38.06 |
-57:33:48.7 |
HIP 64287 |
7.24 |
| 2026-10-04 00:00 |
13:09:44.37 |
-57:33:57.8 |
HIP 64287 |
6.45 |
| 2026-10-04 12:00 |
13:09:50.70 |
-57:34:07.3 |
HIP 64287 |
5.69 |
| 2026-10-05 00:00 |
13:09:57.03 |
-57:34:17.2 |
HIP 64287 |
4.96 |
| 2026-10-05 12:00 |
13:10:03.37 |
-57:34:27.5 |
HIP 64287 |
4.28 |
| 2026-10-06 00:00 |
13:10:09.72 |
-57:34:38.2 |
HIP 64287 |
3.69 |
| 2026-10-06 12:00 |
13:10:16.08 |
-57:34:49.4 |
HIP 64287 |
3.24 |
| 2026-10-07 00:00 |
13:10:22.44 |
-57:35:01.0 |
HIP 64287 |
2.98 |
| 2026-10-07 12:00 |
13:10:28.80 |
-57:35:13.0 |
HIP 64287 |
2.97 |
| 2026-10-08 00:00 |
13:10:35.17 |
-57:35:25.4 |
HIP 64287 |
3.22 |
| 2026-10-08 12:00 |
13:10:41.55 |
-57:35:38.2 |
HIP 64287 |
3.67 |
| 2026-10-09 00:00 |
13:10:47.92 |
-57:35:51.4 |
HIP 64287 |
4.27 |
| 2026-10-09 12:00 |
13:10:54.31 |
-57:36:05.0 |
HIP 64287 |
4.96 |
| 2026-10-10 00:00 |
13:11:00.69 |
-57:36:19.1 |
HIP 64287 |
5.71 |
| 2026-10-10 12:00 |
13:11:07.08 |
-57:36:33.5 |
HIP 64287 |
6.49 |
| 2026-10-11 00:00 |
13:11:13.47 |
-57:36:48.4 |
HIP 64287 |
7.31 |