メタデータ
| 項目 |
値 |
| Designation |
C/2024 T3 (PANSTARRS) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2025-03-15T06:16:49.687680Z |
| Orbit solution date (soln_date, UTC) |
2026-03-07T11:42:50Z |
| Obs used |
111 |
| NEO |
- |
| M1 |
7.900 |
| K1 |
15.000 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2024-10-10T12:57:38.505600Z |
| Discovery magnitude (MPC) |
20.06 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) |
2025-03-15.0000000 |
| e |
0.95598107 |
| q (au) |
3.716211 |
| a (au) |
84.423027 |
| i (deg) |
53.484870 |
| Ω (om, deg) |
74.829765 |
| ω (w, deg) |
336.894853 |
| M (ma, deg) |
359.999667 |
等級
散乱 + 全体線形
$$
M_a = (7.260 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
7.260 |
| n |
6.000 |
| gf |
0.998 |
| gb |
-0.918 |
| k |
0.999 |
| 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) |
| 2026-05-12 00:00 |
06:20:01.49 |
+51:47:34.4 |
HIP 30198 |
11.48 |
| 2026-05-12 12:00 |
06:20:38.08 |
+51:47:50.8 |
HIP 30198 |
6.67 |
| 2026-05-13 00:00 |
06:21:14.78 |
+51:48:07.2 |
HIP 30198 |
4.64 |
| 2026-05-13 12:00 |
06:21:51.59 |
+51:48:23.7 |
HIP 30283 |
3.25 |
| 2026-05-14 00:00 |
06:22:28.50 |
+51:48:40.3 |
HIP 30283 |
2.66 |
| 2026-05-14 12:00 |
06:23:05.52 |
+51:48:56.9 |
HIP 30283 |
8.32 |
| 2026-05-15 00:00 |
06:23:42.64 |
+51:49:13.7 |
HIP 30283 |
14.05 |
| 2026-05-15 12:00 |
06:24:19.86 |
+51:49:30.5 |
HIP 30539 |
14.06 |
| 2026-05-16 00:00 |
06:24:57.18 |
+51:49:47.4 |
HIP 30539 |
12.01 |
| 2026-05-16 12:00 |
06:25:34.61 |
+51:50:04.4 |
HIP 30539 |
12.57 |
| 2026-05-17 00:00 |
06:26:12.13 |
+51:50:21.5 |
HIP 30539 |
15.47 |
| 2026-05-17 12:00 |
06:26:49.75 |
+51:50:38.6 |
HIP 30539 |
19.72 |
| 2026-05-18 00:00 |
06:27:27.46 |
+51:50:55.9 |
HIP 30878 |
21.39 |
| 2026-05-18 12:00 |
06:28:05.27 |
+51:51:13.2 |
HIP 30878 |
18.04 |
| 2026-05-19 00:00 |
06:28:43.18 |
+51:51:30.5 |
HIP 30878 |
16.15 |
| 2026-05-19 12:00 |
06:29:21.17 |
+51:51:48.0 |
HIP 31027 |
12.86 |
| 2026-05-20 00:00 |
06:29:59.26 |
+51:52:05.5 |
HIP 31027 |
7.99 |
| 2026-05-20 12:00 |
06:30:37.43 |
+51:52:23.1 |
HIP 31027 |
5.63 |
| 2026-05-21 00:00 |
06:31:15.70 |
+51:52:40.8 |
HIP 31027 |
8.35 |
| 2026-05-21 12:00 |
06:31:54.05 |
+51:52:58.6 |
HIP 31027 |
13.34 |
| 2026-05-22 00:00 |
06:32:32.49 |
+51:53:16.4 |
HIP 31027 |
18.90 |
| 2026-05-22 12:00 |
06:33:11.01 |
+51:53:34.3 |
HIP 31452 |
20.76 |
| 2026-05-23 00:00 |
06:33:49.62 |
+51:53:52.3 |
HIP 31452 |
14.95 |
| 2026-05-23 12:00 |
06:34:28.30 |
+51:54:10.3 |
HIP 31452 |
9.31 |
| 2026-05-24 00:00 |
06:35:07.08 |
+51:54:28.4 |
HIP 31452 |
4.62 |
| 2026-05-24 12:00 |
06:35:45.93 |
+51:54:46.6 |
HIP 31452 |
5.25 |
| 2026-05-25 00:00 |
06:36:24.86 |
+51:55:04.8 |
HIP 31452 |
10.29 |
| 2026-05-25 12:00 |
06:37:03.86 |
+51:55:23.1 |
HIP 31748 |
13.88 |
| 2026-05-26 00:00 |
06:37:42.95 |
+51:55:41.5 |
HIP 31748 |
8.36 |
| 2026-05-26 12:00 |
06:38:22.11 |
+51:56:00.0 |
HIP 31748 |
4.46 |
| 2026-05-27 00:00 |
06:39:01.35 |
+51:56:18.4 |
HIP 31748 |
6.55 |
| 2026-05-27 12:00 |
06:39:40.66 |
+51:56:36.9 |
HIP 31965 |
10.75 |
| 2026-05-28 00:00 |
06:40:20.05 |
+51:56:55.5 |
HIP 31965 |
4.82 |
| 2026-05-28 12:00 |
06:40:59.50 |
+51:57:14.2 |
HIP 31965 |
2.21 |
| 2026-05-29 00:00 |
06:41:39.03 |
+51:57:32.9 |
HIP 31965 |
7.79 |
| 2026-05-29 12:00 |
06:42:18.64 |
+51:57:51.7 |
HIP 31965 |
13.83 |
| 2026-05-30 00:00 |
06:42:58.31 |
+51:58:10.6 |
HIP 32229 |
12.04 |
| 2026-05-30 12:00 |
06:43:38.05 |
+51:58:29.4 |
HIP 32229 |
9.76 |
| 2026-05-31 00:00 |
06:44:17.85 |
+51:58:48.4 |
HIP 32229 |
10.98 |
| 2026-05-31 12:00 |
06:44:57.73 |
+51:59:07.4 |
HIP 32229 |
14.87 |
| 2026-06-01 00:00 |
06:45:37.67 |
+51:59:26.4 |
HIP 32441 |
11.33 |
| 2026-06-01 12:00 |
06:46:17.68 |
+51:59:45.6 |
HIP 32441 |
10.07 |
| 2026-06-02 00:00 |
06:46:57.75 |
+52:00:04.7 |
HIP 32441 |
12.27 |