370P/NEAT
メタデータ
| 項目 |
値 |
| Designation |
370P/NEAT |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2002-01-24T08:45:26.599680Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:28:38Z |
| Obs used |
215 |
| NEO |
- |
| M1 |
7.200 |
| K1 |
23.000 |
| PC |
0.030 |
| Discovery observation (MPC, UTC) |
2018-08-10T04:42:15.264000Z |
| Discovery magnitude (MPC) |
18.80 N |
| Discovery observatory (MPC) |
J04 · ESA Optical Ground Station, Tenerife |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2006-10-30.0000000 |
| e |
0.61224889 |
| q (au) |
2.504423 |
| a (au) |
6.458840 |
| i (deg) |
19.365933 |
| Ω (om, deg) |
55.268513 |
| ω (w, deg) |
356.830024 |
| M (ma, deg) |
104.455282 |
等級
散乱 + 全体線形
$$
M_a = (10.271 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
10.271 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-1.000 |
| 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) |
| 2026-02-03 00:00 |
15:29:11.05 |
-16:39:56.4 |
HIP 75858 |
13.12 |
| 2026-02-03 12:00 |
15:29:15.14 |
-16:40:15.8 |
HIP 75858 |
12.29 |
| 2026-02-04 00:00 |
15:29:19.14 |
-16:40:34.7 |
HIP 75858 |
11.51 |
| 2026-02-04 12:00 |
15:29:23.05 |
-16:40:53.4 |
HIP 75858 |
10.78 |
| 2026-02-05 00:00 |
15:29:26.86 |
-16:41:11.7 |
HIP 75858 |
10.12 |
| 2026-02-05 12:00 |
15:29:30.58 |
-16:41:29.7 |
HIP 75858 |
9.51 |
| 2026-02-06 00:00 |
15:29:34.21 |
-16:41:47.3 |
HIP 75858 |
8.98 |
| 2026-02-06 12:00 |
15:29:37.74 |
-16:42:04.5 |
HIP 75858 |
8.52 |
| 2026-02-07 00:00 |
15:29:41.18 |
-16:42:21.5 |
HIP 75858 |
8.14 |
| 2026-02-07 12:00 |
15:29:44.52 |
-16:42:38.1 |
HIP 75858 |
7.84 |
| 2026-02-08 00:00 |
15:29:47.77 |
-16:42:54.3 |
HIP 75858 |
7.63 |
| 2026-02-08 12:00 |
15:29:50.92 |
-16:43:10.2 |
HIP 75858 |
7.50 |
| 2026-02-09 00:00 |
15:29:53.98 |
-16:43:25.7 |
HIP 75858 |
7.46 |
| 2026-02-09 12:00 |
15:29:56.94 |
-16:43:40.9 |
HIP 75858 |
7.49 |
| 2026-02-10 00:00 |
15:29:59.80 |
-16:43:55.8 |
HIP 75858 |
7.59 |
| 2026-02-10 12:00 |
15:30:02.57 |
-16:44:10.3 |
HIP 75858 |
7.75 |
| 2026-02-11 00:00 |
15:30:05.23 |
-16:44:24.5 |
HIP 75858 |
7.95 |
| 2026-02-11 12:00 |
15:30:07.81 |
-16:44:38.3 |
HIP 75858 |
8.20 |
| 2026-02-12 00:00 |
15:30:10.28 |
-16:44:51.7 |
HIP 75858 |
8.48 |
| 2026-02-12 12:00 |
15:30:12.66 |
-16:45:04.9 |
HIP 75858 |
8.77 |
| 2026-02-13 00:00 |
15:30:14.93 |
-16:45:17.6 |
HIP 75858 |
9.09 |
| 2026-02-13 12:00 |
15:30:17.11 |
-16:45:30.0 |
HIP 75858 |
9.41 |
| 2026-02-14 00:00 |
15:30:19.19 |
-16:45:42.1 |
HIP 75858 |
9.74 |
| 2026-02-14 12:00 |
15:30:21.17 |
-16:45:53.8 |
HIP 75858 |
10.06 |
| 2026-02-15 00:00 |
15:30:23.05 |
-16:46:05.2 |
HIP 75858 |
10.38 |
| 2026-02-15 12:00 |
15:30:24.83 |
-16:46:16.2 |
HIP 75944 |
10.39 |
| 2026-02-16 00:00 |
15:30:26.51 |
-16:46:26.8 |
HIP 75944 |
10.42 |
| 2026-02-16 12:00 |
15:30:28.09 |
-16:46:37.2 |
HIP 75944 |
10.47 |
| 2026-02-17 00:00 |
15:30:29.57 |
-16:46:47.1 |
HIP 75944 |
10.54 |
| 2026-02-17 12:00 |
15:30:30.95 |
-16:46:56.7 |
HIP 75944 |
10.62 |
| 2026-02-18 00:00 |
15:30:32.22 |
-16:47:06.0 |
HIP 75944 |
10.71 |
| 2026-02-18 12:00 |
15:30:33.40 |
-16:47:14.9 |
HIP 75944 |
10.81 |
| 2026-02-19 00:00 |
15:30:34.47 |
-16:47:23.5 |
HIP 75944 |
10.92 |
| 2026-02-19 12:00 |
15:30:35.45 |
-16:47:31.7 |
HIP 75944 |
11.02 |
| 2026-02-20 00:00 |
15:30:36.32 |
-16:47:39.6 |
HIP 75944 |
11.13 |
| 2026-02-20 12:00 |
15:30:37.09 |
-16:47:47.1 |
HIP 75944 |
11.24 |
| 2026-02-21 00:00 |
15:30:37.76 |
-16:47:54.2 |
HIP 75944 |
11.35 |
| 2026-02-21 12:00 |
15:30:38.32 |
-16:48:01.1 |
HIP 75944 |
11.46 |
| 2026-02-22 00:00 |
15:30:38.79 |
-16:48:07.5 |
HIP 75944 |
11.56 |
| 2026-02-22 12:00 |
15:30:39.15 |
-16:48:13.7 |
HIP 75944 |
11.66 |
| 2026-02-23 00:00 |
15:30:39.41 |
-16:48:19.4 |
HIP 75944 |
11.76 |
| 2026-02-23 12:00 |
15:30:39.57 |
-16:48:24.9 |
HIP 75944 |
11.85 |
| 2026-02-24 00:00 |
15:30:39.63 |
-16:48:30.0 |
HIP 75944 |
11.93 |