メタデータ
| 項目 |
値 |
| Designation |
410P/NEAT-LINEAR |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2021-06-23T16:08:47.518080Z |
| Orbit solution date (soln_date, UTC) |
2024-10-10T17:20:56Z |
| Obs used |
272 |
| NEO |
- |
| M1 |
15.300 |
| K1 |
4.500 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2003-11-19T08:35:26.880000Z |
| Discovery magnitude (MPC) |
19.40 |
| Discovery observatory (MPC) |
644 · Palomar Mountain/NEAT |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2020-10-23.0000000 |
| e |
0.51001407 |
| q (au) |
3.246901 |
| a (au) |
6.626518 |
| i (deg) |
9.393692 |
| Ω (om, deg) |
139.982329 |
| ω (w, deg) |
313.113433 |
| M (ma, deg) |
345.920638 |
等級
散乱 + 全体線形
$$
M_a = (14.656 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
14.656 |
| n |
2.000 |
| gf |
1.000 |
| gb |
-0.926 |
| 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
残差 (区間線形)
$$\epsilon = a \log_{10} r_{\mathrm{au}} + b$$
| 開始日 (UTC) |
終了日 (UTC) |
a |
b |
| 2020-08-29 |
2021-02-13 |
+16.5565 |
-8.722 |
| 2021-11-07 |
2022-04-29 |
-18.9461 |
+10.146 |
log10 r = log10(太陽距離/AU)、Δ = 地球距離(AU)
天体暦
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-03-26 00:00 |
16:21:47.57 |
-11:30:55.6 |
HIP 80058 |
19.62 |
| 2026-03-26 12:00 |
16:21:44.40 |
-11:30:16.8 |
HIP 80058 |
18.89 |
| 2026-03-27 00:00 |
16:21:41.12 |
-11:29:37.8 |
HIP 80058 |
18.16 |
| 2026-03-27 12:00 |
16:21:37.71 |
-11:28:58.7 |
HIP 80058 |
17.43 |
| 2026-03-28 00:00 |
16:21:34.19 |
-11:28:19.4 |
HIP 80058 |
16.71 |
| 2026-03-28 12:00 |
16:21:30.56 |
-11:27:39.9 |
HIP 80058 |
16.00 |
| 2026-03-29 00:00 |
16:21:26.81 |
-11:27:00.3 |
HIP 80058 |
15.32 |
| 2026-03-29 12:00 |
16:21:22.94 |
-11:26:20.5 |
HIP 80058 |
14.66 |
| 2026-03-30 00:00 |
16:21:18.96 |
-11:25:40.6 |
HIP 80058 |
14.05 |
| 2026-03-30 12:00 |
16:21:14.87 |
-11:25:00.5 |
HIP 80058 |
13.49 |
| 2026-03-31 00:00 |
16:21:10.66 |
-11:24:20.3 |
HIP 80058 |
12.99 |
| 2026-03-31 12:00 |
16:21:06.34 |
-11:23:39.9 |
HIP 80058 |
12.58 |
| 2026-04-01 00:00 |
16:21:01.91 |
-11:22:59.4 |
HIP 80058 |
12.26 |
| 2026-04-01 12:00 |
16:20:57.36 |
-11:22:18.8 |
HIP 80058 |
12.06 |
| 2026-04-02 00:00 |
16:20:52.70 |
-11:21:38.0 |
HIP 80058 |
11.98 |
| 2026-04-02 12:00 |
16:20:47.94 |
-11:20:57.1 |
HIP 80058 |
12.04 |
| 2026-04-03 00:00 |
16:20:43.06 |
-11:20:16.0 |
HIP 80058 |
12.25 |
| 2026-04-03 12:00 |
16:20:38.07 |
-11:19:34.9 |
HIP 80058 |
12.60 |
| 2026-04-04 00:00 |
16:20:32.97 |
-11:18:53.6 |
HIP 80058 |
13.08 |
| 2026-04-04 12:00 |
16:20:27.76 |
-11:18:12.2 |
HIP 80058 |
13.71 |
| 2026-04-05 00:00 |
16:20:22.44 |
-11:17:30.8 |
HIP 80058 |
14.45 |
| 2026-04-05 12:00 |
16:20:17.01 |
-11:16:49.2 |
HIP 80058 |
15.31 |
| 2026-04-06 00:00 |
16:20:11.48 |
-11:16:07.5 |
HIP 80058 |
16.27 |
| 2026-04-06 12:00 |
16:20:05.84 |
-11:15:25.7 |
HIP 80058 |
17.32 |
| 2026-04-07 00:00 |
16:20:00.09 |
-11:14:43.8 |
HIP 80058 |
18.46 |
| 2026-04-07 12:00 |
16:19:54.24 |
-11:14:01.8 |
HIP 79915 |
17.67 |
| 2026-04-08 00:00 |
16:19:48.28 |
-11:13:19.7 |
HIP 79915 |
16.40 |
| 2026-04-08 12:00 |
16:19:42.22 |
-11:12:37.6 |
HIP 79915 |
15.16 |
| 2026-04-09 00:00 |
16:19:36.05 |
-11:11:55.4 |
HIP 79915 |
13.99 |
| 2026-04-09 12:00 |
16:19:29.78 |
-11:11:13.1 |
HIP 79915 |
12.91 |
| 2026-04-10 00:00 |
16:19:23.40 |
-11:10:30.7 |
HIP 79915 |
11.95 |
| 2026-04-10 12:00 |
16:19:16.93 |
-11:09:48.3 |
HIP 79915 |
11.16 |
| 2026-04-11 00:00 |
16:19:10.35 |
-11:09:05.8 |
HIP 79915 |
10.58 |
| 2026-04-11 12:00 |
16:19:03.67 |
-11:08:23.3 |
HIP 79915 |
10.26 |
| 2026-04-12 00:00 |
16:18:56.89 |
-11:07:40.7 |
HIP 79915 |
10.23 |
| 2026-04-12 12:00 |
16:18:50.01 |
-11:06:58.1 |
HIP 79915 |
10.52 |
| 2026-04-13 00:00 |
16:18:43.03 |
-11:06:15.4 |
HIP 79915 |
11.11 |
| 2026-04-13 12:00 |
16:18:35.96 |
-11:05:32.7 |
HIP 79915 |
11.97 |
| 2026-04-14 00:00 |
16:18:28.78 |
-11:04:50.0 |
HIP 79915 |
13.04 |
| 2026-04-14 12:00 |
16:18:21.52 |
-11:04:07.2 |
HIP 79915 |
14.30 |
| 2026-04-15 00:00 |
16:18:14.15 |
-11:03:24.4 |
HIP 79915 |
15.71 |
| 2026-04-15 12:00 |
16:18:06.69 |
-11:02:41.6 |
HIP 79915 |
17.23 |
| 2026-04-16 00:00 |
16:17:59.14 |
-11:01:58.8 |
HIP 79915 |
18.84 |