メタデータ
| 項目 |
値 |
| Designation |
C/2001 C1 (LINEAR) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2002-03-28T09:55:55.508160Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:30:08Z |
| Obs used |
229 |
| NEO |
- |
| M1 |
6.700 |
| K1 |
9.750 |
| PC |
0.030 |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2001-04-12.0000000 |
| e |
0.99987490 |
| q (au) |
5.104333 |
| a (au) |
40802.601593 |
| i (deg) |
68.964525 |
| Ω (om, deg) |
33.716342 |
| ω (w, deg) |
219.949836 |
| M (ma, deg) |
359.999958 |
等級
散乱 + 全体線形
$$
M_a = (8.017 + 2.707\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
8.017 |
| n |
2.707 |
| gf |
0.999 |
| gb |
-0.501 |
| 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) |
| 2026-06-01 00:00 |
02:08:55.38 |
+12:24:59.8 |
HIP 10106 |
17.10 |
| 2026-06-01 12:00 |
02:08:57.49 |
+12:25:13.6 |
HIP 10106 |
16.67 |
| 2026-06-02 00:00 |
02:08:59.59 |
+12:25:27.4 |
HIP 10106 |
16.24 |
| 2026-06-02 12:00 |
02:09:01.67 |
+12:25:41.1 |
HIP 10106 |
15.83 |
| 2026-06-03 00:00 |
02:09:03.75 |
+12:25:54.8 |
HIP 10106 |
15.42 |
| 2026-06-03 12:00 |
02:09:05.81 |
+12:26:08.3 |
HIP 10106 |
15.03 |
| 2026-06-04 00:00 |
02:09:07.85 |
+12:26:21.8 |
HIP 10106 |
14.66 |
| 2026-06-04 12:00 |
02:09:09.89 |
+12:26:35.2 |
HIP 10106 |
14.29 |
| 2026-06-05 00:00 |
02:09:11.91 |
+12:26:48.6 |
HIP 10106 |
13.94 |
| 2026-06-05 12:00 |
02:09:13.92 |
+12:27:01.9 |
HIP 10106 |
13.61 |
| 2026-06-06 00:00 |
02:09:15.91 |
+12:27:15.1 |
HIP 10106 |
13.29 |
| 2026-06-06 12:00 |
02:09:17.89 |
+12:27:28.2 |
HIP 10106 |
12.98 |
| 2026-06-07 00:00 |
02:09:19.86 |
+12:27:41.2 |
HIP 10106 |
12.70 |
| 2026-06-07 12:00 |
02:09:21.81 |
+12:27:54.2 |
HIP 10106 |
12.43 |
| 2026-06-08 00:00 |
02:09:23.74 |
+12:28:07.1 |
HIP 10106 |
12.18 |
| 2026-06-08 12:00 |
02:09:25.67 |
+12:28:19.9 |
HIP 10106 |
11.95 |
| 2026-06-09 00:00 |
02:09:27.58 |
+12:28:32.7 |
HIP 10106 |
11.74 |
| 2026-06-09 12:00 |
02:09:29.47 |
+12:28:45.3 |
HIP 10106 |
11.55 |
| 2026-06-10 00:00 |
02:09:31.35 |
+12:28:57.9 |
HIP 10106 |
11.38 |
| 2026-06-10 12:00 |
02:09:33.22 |
+12:29:10.4 |
HIP 10106 |
11.23 |
| 2026-06-11 00:00 |
02:09:35.07 |
+12:29:22.8 |
HIP 10106 |
11.10 |
| 2026-06-11 12:00 |
02:09:36.90 |
+12:29:35.2 |
HIP 10106 |
11.00 |
| 2026-06-12 00:00 |
02:09:38.72 |
+12:29:47.4 |
HIP 10106 |
10.92 |
| 2026-06-12 12:00 |
02:09:40.52 |
+12:29:59.6 |
HIP 10106 |
10.86 |
| 2026-06-13 00:00 |
02:09:42.31 |
+12:30:11.7 |
HIP 10106 |
10.82 |
| 2026-06-13 12:00 |
02:09:44.09 |
+12:30:23.7 |
HIP 10106 |
10.80 |
| 2026-06-14 00:00 |
02:09:45.84 |
+12:30:35.6 |
HIP 10106 |
10.81 |
| 2026-06-14 12:00 |
02:09:47.58 |
+12:30:47.4 |
HIP 10106 |
10.84 |
| 2026-06-15 00:00 |
02:09:49.31 |
+12:30:59.2 |
HIP 10106 |
10.88 |
| 2026-06-15 12:00 |
02:09:51.02 |
+12:31:10.8 |
HIP 10106 |
10.95 |
| 2026-06-16 00:00 |
02:09:52.71 |
+12:31:22.4 |
HIP 10106 |
11.03 |
| 2026-06-16 12:00 |
02:09:54.39 |
+12:31:33.9 |
HIP 10106 |
11.13 |
| 2026-06-17 00:00 |
02:09:56.04 |
+12:31:45.3 |
HIP 10106 |
11.25 |
| 2026-06-17 12:00 |
02:09:57.69 |
+12:31:56.6 |
HIP 10106 |
11.38 |
| 2026-06-18 00:00 |
02:09:59.31 |
+12:32:07.8 |
HIP 10106 |
11.53 |
| 2026-06-18 12:00 |
02:10:00.92 |
+12:32:18.9 |
HIP 10106 |
11.69 |
| 2026-06-19 00:00 |
02:10:02.51 |
+12:32:29.9 |
HIP 10106 |
11.86 |
| 2026-06-19 12:00 |
02:10:04.09 |
+12:32:40.8 |
HIP 10106 |
12.04 |
| 2026-06-20 00:00 |
02:10:05.64 |
+12:32:51.7 |
HIP 10106 |
12.24 |
| 2026-06-20 12:00 |
02:10:07.18 |
+12:33:02.4 |
HIP 10106 |
12.44 |
| 2026-06-21 00:00 |
02:10:08.70 |
+12:33:13.1 |
HIP 10106 |
12.65 |
| 2026-06-21 12:00 |
02:10:10.21 |
+12:33:23.7 |
HIP 10106 |
12.87 |
| 2026-06-22 00:00 |
02:10:11.70 |
+12:33:34.1 |
HIP 10106 |
13.10 |