メタデータ
| 項目 |
値 |
| Designation |
C/2000 H1 (LINEAR) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2000-01-29T06:37:45.935040Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:30:04Z |
| Obs used |
112 |
| NEO |
- |
| M1 |
13.500 |
| K1 |
4.500 |
| PC |
- |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2000-06-10.0000000 |
| e |
1.00207029 |
| q (au) |
3.638124 |
| a (au) |
-1757.299516 |
| i (deg) |
118.236996 |
| Ω (om, deg) |
356.443281 |
| ω (w, deg) |
78.874677 |
| M (ma, deg) |
0.001776 |
等級
散乱 + 全体線形
$$
M_a = (6.510 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
6.510 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.500 |
| 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) |
| 2026-03-26 00:00 |
09:07:20.93 |
-25:51:28.6 |
HIP 44824 |
9.43 |
| 2026-03-26 12:00 |
09:07:19.01 |
-25:51:04.1 |
HIP 44824 |
9.88 |
| 2026-03-27 00:00 |
09:07:17.10 |
-25:50:39.6 |
HIP 44824 |
10.33 |
| 2026-03-27 12:00 |
09:07:15.22 |
-25:50:14.9 |
HIP 44824 |
10.79 |
| 2026-03-28 00:00 |
09:07:13.36 |
-25:49:50.2 |
HIP 44824 |
11.26 |
| 2026-03-28 12:00 |
09:07:11.52 |
-25:49:25.4 |
HIP 44824 |
11.74 |
| 2026-03-29 00:00 |
09:07:09.70 |
-25:49:00.6 |
HIP 44824 |
12.22 |
| 2026-03-29 12:00 |
09:07:07.89 |
-25:48:35.6 |
HIP 44824 |
12.71 |
| 2026-03-30 00:00 |
09:07:06.11 |
-25:48:10.6 |
HIP 44824 |
13.20 |
| 2026-03-30 12:00 |
09:07:04.35 |
-25:47:45.6 |
HIP 44824 |
13.69 |
| 2026-03-31 00:00 |
09:07:02.61 |
-25:47:20.4 |
HIP 44824 |
14.19 |
| 2026-03-31 12:00 |
09:07:00.88 |
-25:46:55.3 |
HIP 44824 |
14.68 |
| 2026-04-01 00:00 |
09:06:59.18 |
-25:46:30.0 |
HIP 44824 |
15.18 |
| 2026-04-01 12:00 |
09:06:57.50 |
-25:46:04.7 |
HIP 44824 |
15.68 |
| 2026-04-02 00:00 |
09:06:55.84 |
-25:45:39.3 |
HIP 44824 |
16.18 |
| 2026-04-02 12:00 |
09:06:54.20 |
-25:45:13.9 |
HIP 44824 |
16.68 |
| 2026-04-03 00:00 |
09:06:52.58 |
-25:44:48.4 |
HIP 44824 |
17.18 |
| 2026-04-03 12:00 |
09:06:50.98 |
-25:44:22.9 |
HIP 44824 |
17.68 |
| 2026-04-04 00:00 |
09:06:49.40 |
-25:43:57.3 |
HIP 44824 |
18.18 |
| 2026-04-04 12:00 |
09:06:47.84 |
-25:43:31.7 |
HIP 44824 |
18.68 |
| 2026-04-05 00:00 |
09:06:46.31 |
-25:43:06.0 |
HIP 44824 |
19.17 |
| 2026-04-05 12:00 |
09:06:44.79 |
-25:42:40.3 |
HIP 44824 |
19.67 |
| 2026-04-06 00:00 |
09:06:43.30 |
-25:42:14.6 |
HIP 44824 |
20.17 |
| 2026-04-06 12:00 |
09:06:41.83 |
-25:41:48.8 |
HIP 44824 |
20.66 |
| 2026-04-07 00:00 |
09:06:40.37 |
-25:41:23.0 |
HIP 44824 |
21.15 |
| 2026-04-07 12:00 |
09:06:38.94 |
-25:40:57.1 |
HIP 44824 |
21.64 |
| 2026-04-08 00:00 |
09:06:37.54 |
-25:40:31.3 |
HIP 44824 |
22.13 |
| 2026-04-08 12:00 |
09:06:36.15 |
-25:40:05.3 |
HIP 44824 |
22.62 |
| 2026-04-09 00:00 |
09:06:34.78 |
-25:39:39.4 |
HIP 44824 |
23.10 |
| 2026-04-09 12:00 |
09:06:33.44 |
-25:39:13.4 |
HIP 44824 |
23.59 |
| 2026-04-10 00:00 |
09:06:32.12 |
-25:38:47.4 |
HIP 44566 |
23.31 |
| 2026-04-10 12:00 |
09:06:30.82 |
-25:38:21.4 |
HIP 44566 |
23.04 |
| 2026-04-11 00:00 |
09:06:29.54 |
-25:37:55.4 |
HIP 44566 |
22.79 |
| 2026-04-11 12:00 |
09:06:28.29 |
-25:37:29.3 |
HIP 44566 |
22.55 |
| 2026-04-12 00:00 |
09:06:27.06 |
-25:37:03.3 |
HIP 44566 |
22.32 |
| 2026-04-12 12:00 |
09:06:25.85 |
-25:36:37.2 |
HIP 44566 |
22.11 |
| 2026-04-13 00:00 |
09:06:24.66 |
-25:36:11.1 |
HIP 44566 |
21.91 |
| 2026-04-13 12:00 |
09:06:23.49 |
-25:35:45.0 |
HIP 44566 |
21.72 |
| 2026-04-14 00:00 |
09:06:22.35 |
-25:35:18.9 |
HIP 44566 |
21.56 |
| 2026-04-14 12:00 |
09:06:21.23 |
-25:34:52.8 |
HIP 44566 |
21.41 |
| 2026-04-15 00:00 |
09:06:20.13 |
-25:34:26.6 |
HIP 44566 |
21.27 |
| 2026-04-15 12:00 |
09:06:19.05 |
-25:34:00.5 |
HIP 44566 |
21.15 |
| 2026-04-16 00:00 |
09:06:18.00 |
-25:33:34.4 |
HIP 44566 |
21.05 |