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) |
| 2026-05-12 00:00 |
16:09:44.19 |
-10:26:33.9 |
HIP 79071 |
27.86 |
| 2026-05-12 12:00 |
16:09:33.26 |
-10:25:57.1 |
HIP 79071 |
25.63 |
| 2026-05-13 00:00 |
16:09:22.29 |
-10:25:20.6 |
HIP 79071 |
23.52 |
| 2026-05-13 12:00 |
16:09:11.31 |
-10:24:44.4 |
HIP 79071 |
21.54 |
| 2026-05-14 00:00 |
16:09:00.29 |
-10:24:08.4 |
HIP 79071 |
19.77 |
| 2026-05-14 12:00 |
16:08:49.24 |
-10:23:32.6 |
HIP 79071 |
18.24 |
| 2026-05-15 00:00 |
16:08:38.17 |
-10:22:57.1 |
HIP 79071 |
17.04 |
| 2026-05-15 12:00 |
16:08:27.08 |
-10:22:21.9 |
HIP 79071 |
16.24 |
| 2026-05-16 00:00 |
16:08:15.97 |
-10:21:46.9 |
HIP 78965 |
15.58 |
| 2026-05-16 12:00 |
16:08:04.83 |
-10:21:12.3 |
HIP 78965 |
12.79 |
| 2026-05-17 00:00 |
16:07:53.67 |
-10:20:37.8 |
HIP 78965 |
9.99 |
| 2026-05-17 12:00 |
16:07:42.50 |
-10:20:03.7 |
HIP 78965 |
7.20 |
| 2026-05-18 00:00 |
16:07:31.31 |
-10:19:29.9 |
HIP 78965 |
4.42 |
| 2026-05-18 12:00 |
16:07:20.11 |
-10:18:56.3 |
HIP 78965 |
1.75 |
| 2026-05-19 00:00 |
16:07:08.89 |
-10:18:23.1 |
HIP 78965 |
1.54 |
| 2026-05-19 12:00 |
16:06:57.67 |
-10:17:50.1 |
HIP 78965 |
4.19 |
| 2026-05-20 00:00 |
16:06:46.43 |
-10:17:17.5 |
HIP 78965 |
6.97 |
| 2026-05-20 12:00 |
16:06:35.18 |
-10:16:45.1 |
HIP 78965 |
9.77 |
| 2026-05-21 00:00 |
16:06:23.93 |
-10:16:13.1 |
HIP 78965 |
12.58 |
| 2026-05-21 12:00 |
16:06:12.67 |
-10:15:41.4 |
HIP 78965 |
15.39 |
| 2026-05-22 00:00 |
16:06:01.40 |
-10:15:10.0 |
HIP 78965 |
18.21 |
| 2026-05-22 12:00 |
16:05:50.13 |
-10:14:38.9 |
HIP 78965 |
21.02 |
| 2026-05-23 00:00 |
16:05:38.87 |
-10:14:08.1 |
HIP 78965 |
23.84 |
| 2026-05-23 12:00 |
16:05:27.60 |
-10:13:37.7 |
HIP 78715 |
26.59 |
| 2026-05-24 00:00 |
16:05:16.33 |
-10:13:07.6 |
HIP 78715 |
24.30 |
| 2026-05-24 12:00 |
16:05:05.07 |
-10:12:37.9 |
HIP 78715 |
22.13 |
| 2026-05-25 00:00 |
16:04:53.81 |
-10:12:08.5 |
HIP 78715 |
20.13 |
| 2026-05-25 12:00 |
16:04:42.55 |
-10:11:39.4 |
HIP 78715 |
18.34 |
| 2026-05-26 00:00 |
16:04:31.30 |
-10:11:10.7 |
HIP 78715 |
16.85 |
| 2026-05-26 12:00 |
16:04:20.06 |
-10:10:42.3 |
HIP 78715 |
15.73 |
| 2026-05-27 00:00 |
16:04:08.83 |
-10:10:14.3 |
HIP 78715 |
15.06 |
| 2026-05-27 12:00 |
16:03:57.61 |
-10:09:46.6 |
HIP 78715 |
14.90 |
| 2026-05-28 00:00 |
16:03:46.40 |
-10:09:19.3 |
HIP 78715 |
15.27 |
| 2026-05-28 12:00 |
16:03:35.21 |
-10:08:52.4 |
HIP 78715 |
16.12 |
| 2026-05-29 00:00 |
16:03:24.03 |
-10:08:25.8 |
HIP 78715 |
17.39 |
| 2026-05-29 12:00 |
16:03:12.87 |
-10:07:59.6 |
HIP 78715 |
18.99 |
| 2026-05-30 00:00 |
16:03:01.72 |
-10:07:33.8 |
HIP 78715 |
20.84 |
| 2026-05-30 12:00 |
16:02:50.59 |
-10:07:08.3 |
HIP 78715 |
22.87 |
| 2026-05-31 00:00 |
16:02:39.49 |
-10:06:43.3 |
HIP 78715 |
25.05 |
| 2026-05-31 12:00 |
16:02:28.40 |
-10:06:18.6 |
HIP 78715 |
27.33 |
| 2026-06-01 00:00 |
16:02:17.34 |
-10:05:54.3 |
HIP 78715 |
29.69 |
| 2026-06-01 12:00 |
16:02:06.30 |
-10:05:30.3 |
HIP 78715 |
32.11 |
| 2026-06-02 00:00 |
16:01:55.28 |
-10:05:06.8 |
HIP 78342 |
32.53 |