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) |
| 2026-03-26 00:00 |
15:27:39.16 |
-16:43:26.3 |
HIP 75730 |
8.69 |
| 2026-03-26 12:00 |
15:27:33.22 |
-16:43:11.7 |
HIP 75730 |
10.10 |
| 2026-03-27 00:00 |
15:27:27.20 |
-16:42:56.8 |
HIP 75730 |
11.54 |
| 2026-03-27 12:00 |
15:27:21.09 |
-16:42:41.7 |
HIP 75730 |
13.01 |
| 2026-03-28 00:00 |
15:27:14.89 |
-16:42:26.2 |
HIP 75671 |
14.14 |
| 2026-03-28 12:00 |
15:27:08.61 |
-16:42:10.5 |
HIP 75671 |
14.55 |
| 2026-03-29 00:00 |
15:27:02.24 |
-16:41:54.5 |
HIP 75671 |
15.11 |
| 2026-03-29 12:00 |
15:26:55.79 |
-16:41:38.3 |
HIP 75671 |
15.81 |
| 2026-03-30 00:00 |
15:26:49.26 |
-16:41:21.8 |
HIP 75671 |
16.64 |
| 2026-03-30 12:00 |
15:26:42.64 |
-16:41:05.0 |
HIP 75671 |
17.59 |
| 2026-03-31 00:00 |
15:26:35.94 |
-16:40:47.9 |
HIP 75671 |
18.64 |
| 2026-03-31 12:00 |
15:26:29.16 |
-16:40:30.6 |
HIP 75671 |
19.78 |
| 2026-04-01 00:00 |
15:26:22.30 |
-16:40:13.0 |
HIP 75671 |
21.01 |
| 2026-04-01 12:00 |
15:26:15.36 |
-16:39:55.2 |
HIP 75671 |
22.31 |
| 2026-04-02 00:00 |
15:26:08.34 |
-16:39:37.1 |
HIP 75671 |
23.67 |
| 2026-04-02 12:00 |
15:26:01.24 |
-16:39:18.7 |
HIP 75671 |
25.09 |
| 2026-04-03 00:00 |
15:25:54.06 |
-16:39:00.1 |
HIP 75671 |
26.57 |
| 2026-04-03 12:00 |
15:25:46.80 |
-16:38:41.3 |
HIP 75506 |
27.43 |
| 2026-04-04 00:00 |
15:25:39.47 |
-16:38:22.2 |
HIP 75506 |
27.48 |
| 2026-04-04 12:00 |
15:25:32.05 |
-16:38:02.8 |
HIP 75506 |
27.65 |
| 2026-04-05 00:00 |
15:25:24.57 |
-16:37:43.2 |
HIP 75330 |
27.51 |
| 2026-04-05 12:00 |
15:25:17.01 |
-16:37:23.4 |
HIP 75330 |
25.67 |
| 2026-04-06 00:00 |
15:25:09.37 |
-16:37:03.3 |
HIP 75330 |
23.81 |
| 2026-04-06 12:00 |
15:25:01.66 |
-16:36:43.0 |
HIP 75330 |
21.94 |
| 2026-04-07 00:00 |
15:24:53.88 |
-16:36:22.4 |
HIP 75330 |
20.04 |
| 2026-04-07 12:00 |
15:24:46.03 |
-16:36:01.6 |
HIP 75330 |
18.13 |
| 2026-04-08 00:00 |
15:24:38.10 |
-16:35:40.6 |
HIP 75330 |
16.21 |
| 2026-04-08 12:00 |
15:24:30.11 |
-16:35:19.4 |
HIP 75330 |
14.26 |
| 2026-04-09 00:00 |
15:24:22.04 |
-16:34:57.9 |
HIP 75330 |
12.31 |
| 2026-04-09 12:00 |
15:24:13.91 |
-16:34:36.2 |
HIP 75330 |
10.33 |
| 2026-04-10 00:00 |
15:24:05.70 |
-16:34:14.3 |
HIP 75330 |
8.35 |
| 2026-04-10 12:00 |
15:23:57.43 |
-16:33:52.2 |
HIP 75330 |
6.36 |
| 2026-04-11 00:00 |
15:23:49.10 |
-16:33:29.8 |
HIP 75330 |
4.37 |
| 2026-04-11 12:00 |
15:23:40.69 |
-16:33:07.3 |
HIP 75330 |
2.46 |
| 2026-04-12 00:00 |
15:23:32.23 |
-16:32:44.5 |
HIP 75330 |
1.15 |
| 2026-04-12 12:00 |
15:23:23.70 |
-16:32:21.6 |
HIP 75330 |
2.28 |
| 2026-04-13 00:00 |
15:23:15.10 |
-16:31:58.4 |
HIP 75330 |
4.22 |
| 2026-04-13 12:00 |
15:23:06.45 |
-16:31:35.0 |
HIP 75330 |
6.28 |
| 2026-04-14 00:00 |
15:22:57.73 |
-16:31:11.5 |
HIP 75330 |
8.38 |
| 2026-04-14 12:00 |
15:22:48.95 |
-16:30:47.7 |
HIP 75330 |
10.50 |
| 2026-04-15 00:00 |
15:22:40.12 |
-16:30:23.8 |
HIP 75330 |
12.65 |
| 2026-04-15 12:00 |
15:22:31.22 |
-16:29:59.6 |
HIP 75330 |
14.81 |
| 2026-04-16 00:00 |
15:22:22.27 |
-16:29:35.3 |
HIP 75330 |
16.99 |