メタデータ
| 項目 |
値 |
| Designation |
P/2023 T1 (PANSTARRS) |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2024-05-22T21:33:12.375360Z |
| Orbit solution date (soln_date, UTC) |
2024-01-19T23:44:32Z |
| Obs used |
118 |
| NEO |
- |
| M1 |
6.700 |
| K1 |
24.750 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2023-10-09T10:51:57.686400Z |
| Discovery magnitude (MPC) |
20.43 w |
| Discovery observatory (MPC) |
F52 · Pan-STARRS 2, Haleakala |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2023-10-25.0000000 |
| e |
0.33527882 |
| q (au) |
2.816851 |
| a (au) |
4.237642 |
| i (deg) |
6.605954 |
| Ω (om, deg) |
249.585164 |
| ω (w, deg) |
202.871185 |
| M (ma, deg) |
336.171856 |
等級
散乱 + 全体線形
$$
M_a = (10.590 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
10.590 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.896 |
| 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) |
| 2026-06-01 00:00 |
13:22:28.61 |
-13:44:44.7 |
HIP 65354 |
18.35 |
| 2026-06-01 12:00 |
13:22:22.45 |
-13:43:21.0 |
HIP 65354 |
19.42 |
| 2026-06-02 00:00 |
13:22:16.49 |
-13:41:58.4 |
HIP 65354 |
20.58 |
| 2026-06-02 12:00 |
13:22:10.74 |
-13:40:36.9 |
HIP 65354 |
21.82 |
| 2026-06-03 00:00 |
13:22:05.19 |
-13:39:16.6 |
HIP 65354 |
23.10 |
| 2026-06-03 12:00 |
13:21:59.86 |
-13:37:57.5 |
HIP 65354 |
24.42 |
| 2026-06-04 00:00 |
13:21:54.73 |
-13:36:39.5 |
HIP 65354 |
25.74 |
| 2026-06-04 12:00 |
13:21:49.81 |
-13:35:22.7 |
HIP 65354 |
27.07 |
| 2026-06-05 00:00 |
13:21:45.10 |
-13:34:07.0 |
HIP 65283 |
27.25 |
| 2026-06-05 12:00 |
13:21:40.60 |
-13:32:52.5 |
HIP 65283 |
26.85 |
| 2026-06-06 00:00 |
13:21:36.31 |
-13:31:39.2 |
HIP 65283 |
26.52 |
| 2026-06-06 12:00 |
13:21:32.22 |
-13:30:27.1 |
HIP 65283 |
26.27 |
| 2026-06-07 00:00 |
13:21:28.34 |
-13:29:16.2 |
HIP 65283 |
26.09 |
| 2026-06-07 12:00 |
13:21:24.68 |
-13:28:06.5 |
HIP 65283 |
25.97 |
| 2026-06-08 00:00 |
13:21:21.22 |
-13:26:58.0 |
HIP 65283 |
25.90 |
| 2026-06-08 12:00 |
13:21:17.97 |
-13:25:50.7 |
HIP 65283 |
25.88 |
| 2026-06-09 00:00 |
13:21:14.93 |
-13:24:44.7 |
HIP 65283 |
25.90 |
| 2026-06-09 12:00 |
13:21:12.11 |
-13:23:39.8 |
HIP 65283 |
25.96 |
| 2026-06-10 00:00 |
13:21:09.49 |
-13:22:36.2 |
HIP 65283 |
26.04 |
| 2026-06-10 12:00 |
13:21:07.08 |
-13:21:33.8 |
HIP 65283 |
26.14 |
| 2026-06-11 00:00 |
13:21:04.88 |
-13:20:32.7 |
HIP 65283 |
26.25 |
| 2026-06-11 12:00 |
13:21:02.89 |
-13:19:32.8 |
HIP 65283 |
26.37 |
| 2026-06-12 00:00 |
13:21:01.10 |
-13:18:34.1 |
HIP 65283 |
26.49 |
| 2026-06-12 12:00 |
13:20:59.53 |
-13:17:36.7 |
HIP 65283 |
26.61 |
| 2026-06-13 00:00 |
13:20:58.17 |
-13:16:40.6 |
HIP 65283 |
26.73 |
| 2026-06-13 12:00 |
13:20:57.02 |
-13:15:45.7 |
HIP 65283 |
26.83 |
| 2026-06-14 00:00 |
13:20:56.08 |
-13:14:52.1 |
HIP 65283 |
26.92 |
| 2026-06-14 12:00 |
13:20:55.34 |
-13:13:59.7 |
HIP 65283 |
27.00 |
| 2026-06-15 00:00 |
13:20:54.82 |
-13:13:08.6 |
HIP 65283 |
27.05 |
| 2026-06-15 12:00 |
13:20:54.51 |
-13:12:18.8 |
HIP 65283 |
27.08 |
| 2026-06-16 00:00 |
13:20:54.40 |
-13:11:30.3 |
HIP 65283 |
27.08 |
| 2026-06-16 12:00 |
13:20:54.50 |
-13:10:43.0 |
HIP 65283 |
27.06 |
| 2026-06-17 00:00 |
13:20:54.81 |
-13:09:57.0 |
HIP 65283 |
27.01 |
| 2026-06-17 12:00 |
13:20:55.33 |
-13:09:12.2 |
HIP 65283 |
26.93 |
| 2026-06-18 00:00 |
13:20:56.06 |
-13:08:28.8 |
HIP 65283 |
26.82 |
| 2026-06-18 12:00 |
13:20:56.99 |
-13:07:46.6 |
HIP 65283 |
26.67 |
| 2026-06-19 00:00 |
13:20:58.12 |
-13:07:05.7 |
HIP 65283 |
26.50 |
| 2026-06-19 12:00 |
13:20:59.47 |
-13:06:26.1 |
HIP 65283 |
26.29 |
| 2026-06-20 00:00 |
13:21:01.02 |
-13:05:47.7 |
HIP 65283 |
26.04 |
| 2026-06-20 12:00 |
13:21:02.77 |
-13:05:10.6 |
HIP 65283 |
25.76 |
| 2026-06-21 00:00 |
13:21:04.72 |
-13:04:34.8 |
HIP 65283 |
25.45 |
| 2026-06-21 12:00 |
13:21:06.88 |
-13:04:00.3 |
HIP 65283 |
25.10 |
| 2026-06-22 00:00 |
13:21:09.24 |
-13:03:27.0 |
HIP 65283 |
24.72 |