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 |
-0.829 |
| k |
1.000 |
| δ90 |
9.997 |
| 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 |
-18.185 |
| 2011-08-06 |
2013-05-20 |
-7.0625 |
+5.448 |
| 2013-05-21 |
2014-07-27 |
+22.0488 |
-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) |
| 2026-05-12 00:00 |
13:08:55.20 |
-60:29:22.8 |
HIP 64184 |
11.19 |
| 2026-05-12 12:00 |
13:08:46.76 |
-60:28:40.3 |
HIP 64184 |
10.81 |
| 2026-05-13 00:00 |
13:08:38.37 |
-60:27:57.4 |
HIP 64184 |
10.55 |
| 2026-05-13 12:00 |
13:08:30.02 |
-60:27:14.1 |
HIP 64184 |
10.44 |
| 2026-05-14 00:00 |
13:08:21.73 |
-60:26:30.5 |
HIP 64184 |
10.47 |
| 2026-05-14 12:00 |
13:08:13.48 |
-60:25:46.6 |
HIP 64184 |
10.64 |
| 2026-05-15 00:00 |
13:08:05.28 |
-60:25:02.3 |
HIP 64184 |
10.94 |
| 2026-05-15 12:00 |
13:07:57.13 |
-60:24:17.8 |
HIP 64184 |
11.37 |
| 2026-05-16 00:00 |
13:07:49.03 |
-60:23:32.8 |
HIP 64184 |
11.91 |
| 2026-05-16 12:00 |
13:07:40.99 |
-60:22:47.6 |
HIP 64184 |
12.54 |
| 2026-05-17 00:00 |
13:07:32.99 |
-60:22:02.1 |
HIP 64184 |
13.25 |
| 2026-05-17 12:00 |
13:07:25.05 |
-60:21:16.2 |
HIP 64184 |
14.04 |
| 2026-05-18 00:00 |
13:07:17.16 |
-60:20:30.1 |
HIP 64184 |
14.87 |
| 2026-05-18 12:00 |
13:07:09.32 |
-60:19:43.6 |
HIP 64184 |
15.76 |
| 2026-05-19 00:00 |
13:07:01.54 |
-60:18:56.9 |
HIP 64184 |
16.68 |
| 2026-05-19 12:00 |
13:06:53.81 |
-60:18:09.9 |
HIP 64184 |
17.64 |
| 2026-05-20 00:00 |
13:06:46.14 |
-60:17:22.6 |
HIP 64184 |
18.63 |
| 2026-05-20 12:00 |
13:06:38.52 |
-60:16:35.0 |
HIP 64184 |
19.63 |
| 2026-05-21 00:00 |
13:06:30.96 |
-60:15:47.1 |
HIP 64184 |
20.66 |
| 2026-05-21 12:00 |
13:06:23.46 |
-60:14:58.9 |
HIP 64184 |
21.70 |
| 2026-05-22 00:00 |
13:06:16.01 |
-60:14:10.5 |
HIP 64184 |
22.76 |
| 2026-05-22 12:00 |
13:06:08.62 |
-60:13:21.9 |
HIP 64033 |
23.70 |
| 2026-05-23 00:00 |
13:06:01.28 |
-60:12:32.9 |
HIP 64033 |
23.35 |
| 2026-05-23 12:00 |
13:05:54.01 |
-60:11:43.8 |
HIP 64033 |
23.05 |
| 2026-05-24 00:00 |
13:05:46.79 |
-60:10:54.3 |
HIP 64033 |
22.80 |
| 2026-05-24 12:00 |
13:05:39.63 |
-60:10:04.7 |
HIP 63678 |
22.30 |
| 2026-05-25 00:00 |
13:05:32.53 |
-60:09:14.7 |
HIP 63678 |
21.14 |
| 2026-05-25 12:00 |
13:05:25.49 |
-60:08:24.6 |
HIP 63678 |
19.98 |
| 2026-05-26 00:00 |
13:05:18.51 |
-60:07:34.2 |
HIP 63678 |
18.85 |
| 2026-05-26 12:00 |
13:05:11.59 |
-60:06:43.6 |
HIP 63678 |
17.72 |
| 2026-05-27 00:00 |
13:05:04.73 |
-60:05:52.8 |
HIP 63678 |
16.62 |
| 2026-05-27 12:00 |
13:04:57.93 |
-60:05:01.8 |
HIP 63678 |
15.53 |
| 2026-05-28 00:00 |
13:04:51.19 |
-60:04:10.5 |
HIP 63678 |
14.46 |
| 2026-05-28 12:00 |
13:04:44.51 |
-60:03:19.1 |
HIP 63678 |
13.43 |
| 2026-05-29 00:00 |
13:04:37.89 |
-60:02:27.4 |
HIP 63678 |
12.43 |
| 2026-05-29 12:00 |
13:04:31.34 |
-60:01:35.6 |
HIP 63678 |
11.47 |
| 2026-05-30 00:00 |
13:04:24.85 |
-60:00:43.5 |
HIP 63678 |
10.57 |
| 2026-05-30 12:00 |
13:04:18.42 |
-59:59:51.3 |
HIP 63678 |
9.74 |
| 2026-05-31 00:00 |
13:04:12.05 |
-59:58:58.9 |
HIP 63678 |
8.99 |
| 2026-05-31 12:00 |
13:04:05.75 |
-59:58:06.3 |
HIP 63678 |
8.35 |
| 2026-06-01 00:00 |
13:03:59.51 |
-59:57:13.5 |
HIP 63678 |
7.85 |
| 2026-06-01 12:00 |
13:03:53.33 |
-59:56:20.5 |
HIP 63678 |
7.50 |
| 2026-06-02 00:00 |
13:03:47.22 |
-59:55:27.4 |
HIP 63678 |
7.34 |