メタデータ
| 項目 |
値 |
| Designation |
236P/LINEAR |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2010-09-08T16:59:26.387520Z |
| Orbit solution date (soln_date, UTC) |
2024-08-02T01:42:28Z |
| Obs used |
855 |
| NEO |
- |
| M1 |
15.800 |
| K1 |
8.000 |
| PC |
- |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2012-02-08.0000000 |
| e |
0.50861051 |
| q (au) |
1.831984 |
| a (au) |
3.728170 |
| i (deg) |
16.333956 |
| Ω (om, deg) |
245.660604 |
| ω (w, deg) |
119.340798 |
| M (ma, deg) |
70.826590 |
等級
散乱 + 全体線形
$$
M_a = (11.262 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
11.262 |
| n |
6.000 |
| gf |
0.934 |
| gb |
-0.999 |
| k |
1.000 |
| δ90 |
8.082 |
| 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
ファインディングチャート
天体暦
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-03-26 00:00 |
06:57:15.62 |
+07:52:09.5 |
HIP 33546 |
15.41 |
| 2026-03-26 12:00 |
06:57:27.93 |
+07:53:11.6 |
HIP 33546 |
12.38 |
| 2026-03-27 00:00 |
06:57:40.47 |
+07:54:12.9 |
HIP 33546 |
9.41 |
| 2026-03-27 12:00 |
06:57:53.24 |
+07:55:13.6 |
HIP 33546 |
6.68 |
| 2026-03-28 00:00 |
06:58:06.24 |
+07:56:13.7 |
HIP 33546 |
4.73 |
| 2026-03-28 12:00 |
06:58:19.46 |
+07:57:13.0 |
HIP 33546 |
4.76 |
| 2026-03-29 00:00 |
06:58:32.91 |
+07:58:11.7 |
HIP 33546 |
6.83 |
| 2026-03-29 12:00 |
06:58:46.57 |
+07:59:09.7 |
HIP 33546 |
9.77 |
| 2026-03-30 00:00 |
06:59:00.46 |
+08:00:07.0 |
HIP 33546 |
13.03 |
| 2026-03-30 12:00 |
06:59:14.57 |
+08:01:03.6 |
HIP 33546 |
16.47 |
| 2026-03-31 00:00 |
06:59:28.89 |
+08:01:59.6 |
HIP 33546 |
20.01 |
| 2026-03-31 12:00 |
06:59:43.43 |
+08:02:54.8 |
HIP 33546 |
23.63 |
| 2026-04-01 00:00 |
06:59:58.17 |
+08:03:49.3 |
HIP 33546 |
27.31 |
| 2026-04-01 12:00 |
07:00:13.13 |
+08:04:43.1 |
HIP 33546 |
31.06 |
| 2026-04-02 00:00 |
07:00:28.30 |
+08:05:36.1 |
HIP 33884 |
34.80 |
| 2026-04-02 12:00 |
07:00:43.68 |
+08:06:28.5 |
HIP 33884 |
31.74 |
| 2026-04-03 00:00 |
07:00:59.26 |
+08:07:20.1 |
HIP 33884 |
28.88 |
| 2026-04-03 12:00 |
07:01:15.04 |
+08:08:11.0 |
HIP 33884 |
26.29 |
| 2026-04-04 00:00 |
07:01:31.03 |
+08:09:01.2 |
HIP 33884 |
24.08 |
| 2026-04-04 12:00 |
07:01:47.21 |
+08:09:50.6 |
HIP 33884 |
22.39 |
| 2026-04-05 00:00 |
07:02:03.60 |
+08:10:39.3 |
HIP 33884 |
21.38 |
| 2026-04-05 12:00 |
07:02:20.18 |
+08:11:27.2 |
HIP 33884 |
21.17 |
| 2026-04-06 00:00 |
07:02:36.96 |
+08:12:14.4 |
HIP 34076 |
21.11 |
| 2026-04-06 12:00 |
07:02:53.93 |
+08:13:00.8 |
HIP 34076 |
16.85 |
| 2026-04-07 00:00 |
07:03:11.09 |
+08:13:46.4 |
HIP 34076 |
12.55 |
| 2026-04-07 12:00 |
07:03:28.44 |
+08:14:31.3 |
HIP 34076 |
8.21 |
| 2026-04-08 00:00 |
07:03:45.99 |
+08:15:15.4 |
HIP 34076 |
3.86 |
| 2026-04-08 12:00 |
07:04:03.72 |
+08:15:58.7 |
HIP 34076 |
1.12 |
| 2026-04-09 00:00 |
07:04:21.63 |
+08:16:41.3 |
HIP 34121 |
2.87 |
| 2026-04-09 12:00 |
07:04:39.73 |
+08:17:23.0 |
HIP 34121 |
3.33 |
| 2026-04-10 00:00 |
07:04:58.02 |
+08:18:04.0 |
HIP 34121 |
7.45 |
| 2026-04-10 12:00 |
07:05:16.48 |
+08:18:44.2 |
HIP 34121 |
11.95 |
| 2026-04-11 00:00 |
07:05:35.12 |
+08:19:23.6 |
HIP 34121 |
16.55 |
| 2026-04-11 12:00 |
07:05:53.95 |
+08:20:02.2 |
HIP 34121 |
21.22 |
| 2026-04-12 00:00 |
07:06:12.94 |
+08:20:39.9 |
HIP 34121 |
25.93 |
| 2026-04-12 12:00 |
07:06:32.12 |
+08:21:16.9 |
HIP 34419 |
28.28 |
| 2026-04-13 00:00 |
07:06:51.47 |
+08:21:53.1 |
HIP 34419 |
24.01 |
| 2026-04-13 12:00 |
07:07:10.99 |
+08:22:28.4 |
HIP 34419 |
19.97 |
| 2026-04-14 00:00 |
07:07:30.68 |
+08:23:02.9 |
HIP 34419 |
16.38 |
| 2026-04-14 12:00 |
07:07:50.54 |
+08:23:36.6 |
HIP 34419 |
13.62 |
| 2026-04-15 00:00 |
07:08:10.57 |
+08:24:09.4 |
HIP 34419 |
12.33 |
| 2026-04-15 12:00 |
07:08:30.76 |
+08:24:41.4 |
HIP 34419 |
12.99 |
| 2026-04-16 00:00 |
07:08:51.12 |
+08:25:12.6 |
HIP 34419 |
15.41 |