メタデータ
| 項目 |
値 |
| Designation |
355P/LINEAR-NEAT |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2011-04-24T14:28:48.817920Z |
| Orbit solution date (soln_date, UTC) |
2023-02-13T23:14:08Z |
| Obs used |
962 |
| NEO |
- |
| M1 |
12.900 |
| K1 |
17.250 |
| PC |
0.030 |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2011-04-16.0000000 |
| e |
0.50812349 |
| q (au) |
1.707731 |
| a (au) |
3.471870 |
| i (deg) |
11.044216 |
| Ω (om, deg) |
51.441541 |
| ω (w, deg) |
336.401134 |
| M (ma, deg) |
358.689231 |
等級
散乱 + 全体線形
$$
M_a = (17.405 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
17.405 |
| n |
2.000 |
| gf |
1.000 |
| gb |
-0.635 |
| k |
0.800 |
| 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 |
12:11:27.55 |
+10:49:12.9 |
HIP 59589 |
25.92 |
| 2026-03-26 12:00 |
12:11:07.17 |
+10:50:51.0 |
HIP 59549 |
29.09 |
| 2026-03-27 00:00 |
12:10:46.82 |
+10:52:28.0 |
HIP 59278 |
26.56 |
| 2026-03-27 12:00 |
12:10:26.51 |
+10:54:03.8 |
HIP 59278 |
22.28 |
| 2026-03-28 00:00 |
12:10:06.24 |
+10:55:38.5 |
HIP 59278 |
18.53 |
| 2026-03-28 12:00 |
12:09:46.01 |
+10:57:11.9 |
HIP 59278 |
15.66 |
| 2026-03-29 00:00 |
12:09:25.83 |
+10:58:44.2 |
HIP 59278 |
14.21 |
| 2026-03-29 12:00 |
12:09:05.70 |
+11:00:15.3 |
HIP 59278 |
14.58 |
| 2026-03-30 00:00 |
12:08:45.62 |
+11:01:45.1 |
HIP 59278 |
16.63 |
| 2026-03-30 12:00 |
12:08:25.59 |
+11:03:13.7 |
HIP 59255 |
19.05 |
| 2026-03-31 00:00 |
12:08:05.63 |
+11:04:41.0 |
HIP 59255 |
21.70 |
| 2026-03-31 12:00 |
12:07:45.72 |
+11:06:07.1 |
HIP 59255 |
25.11 |
| 2026-04-01 00:00 |
12:07:25.88 |
+11:07:31.9 |
HIP 59255 |
29.02 |
| 2026-04-01 12:00 |
12:07:06.11 |
+11:08:55.4 |
HIP 58968 |
26.72 |
| 2026-04-02 00:00 |
12:06:46.41 |
+11:10:17.6 |
HIP 58968 |
23.15 |
| 2026-04-02 12:00 |
12:06:26.79 |
+11:11:38.5 |
HIP 58968 |
20.21 |
| 2026-04-03 00:00 |
12:06:07.24 |
+11:12:58.0 |
HIP 58932 |
17.80 |
| 2026-04-03 12:00 |
12:05:47.77 |
+11:14:16.2 |
HIP 58932 |
12.93 |
| 2026-04-04 00:00 |
12:05:28.39 |
+11:15:33.1 |
HIP 58932 |
8.18 |
| 2026-04-04 12:00 |
12:05:09.09 |
+11:16:48.6 |
HIP 58932 |
3.93 |
| 2026-04-05 00:00 |
12:04:49.88 |
+11:18:02.7 |
HIP 58932 |
3.43 |
| 2026-04-05 12:00 |
12:04:30.76 |
+11:19:15.4 |
HIP 58932 |
7.43 |
| 2026-04-06 00:00 |
12:04:11.74 |
+11:20:26.8 |
HIP 58932 |
12.04 |
| 2026-04-06 12:00 |
12:03:52.82 |
+11:21:36.7 |
HIP 58932 |
16.73 |
| 2026-04-07 00:00 |
12:03:34.00 |
+11:22:45.2 |
HIP 58932 |
21.44 |
| 2026-04-07 12:00 |
12:03:15.28 |
+11:23:52.3 |
HIP 58932 |
26.13 |
| 2026-04-08 00:00 |
12:02:56.67 |
+11:24:58.0 |
HIP 58721 |
28.02 |
| 2026-04-08 12:00 |
12:02:38.17 |
+11:26:02.2 |
HIP 58652 |
26.29 |
| 2026-04-09 00:00 |
12:02:19.78 |
+11:27:05.0 |
HIP 58652 |
25.03 |
| 2026-04-09 12:00 |
12:02:01.50 |
+11:28:06.3 |
HIP 58652 |
24.58 |
| 2026-04-10 00:00 |
12:01:43.34 |
+11:29:06.1 |
HIP 58652 |
24.96 |
| 2026-04-10 12:00 |
12:01:25.31 |
+11:30:04.5 |
HIP 58652 |
26.12 |
| 2026-04-11 00:00 |
12:01:07.39 |
+11:31:01.4 |
HIP 58652 |
27.93 |
| 2026-04-11 12:00 |
12:00:49.60 |
+11:31:56.8 |
HIP 58585 |
27.06 |
| 2026-04-12 00:00 |
12:00:31.94 |
+11:32:50.7 |
HIP 58585 |
26.56 |
| 2026-04-12 12:00 |
12:00:14.41 |
+11:33:43.1 |
HIP 58585 |
26.81 |
| 2026-04-13 00:00 |
11:59:57.02 |
+11:34:34.0 |
HIP 58585 |
27.76 |
| 2026-04-13 12:00 |
11:59:39.76 |
+11:35:23.4 |
HIP 58585 |
29.33 |
| 2026-04-14 00:00 |
11:59:22.64 |
+11:36:11.2 |
HIP 58442 |
28.49 |
| 2026-04-14 12:00 |
11:59:05.66 |
+11:36:57.6 |
HIP 58321 |
25.94 |
| 2026-04-15 00:00 |
11:58:48.82 |
+11:37:42.4 |
HIP 58321 |
22.02 |
| 2026-04-15 12:00 |
11:58:32.13 |
+11:38:25.6 |
HIP 58321 |
18.26 |
| 2026-04-16 00:00 |
11:58:15.59 |
+11:39:07.3 |
HIP 58321 |
14.76 |