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
$$
M_a = (7.120 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
7.120 |
| 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) |
| 2026-09-20 00:00 |
09:17:34.32 |
+54:37:28.1 |
HIP 45452 |
24.96 |
| 2026-09-20 12:00 |
09:18:10.85 |
+54:39:07.7 |
HIP 45452 |
29.71 |
| 2026-09-21 00:00 |
09:18:47.28 |
+54:40:48.1 |
HIP 45452 |
34.70 |
| 2026-09-21 12:00 |
09:19:23.63 |
+54:42:29.5 |
HIP 45452 |
39.83 |
| 2026-09-22 00:00 |
09:19:59.88 |
+54:44:11.8 |
HIP 46154 |
41.19 |
| 2026-09-22 12:00 |
09:20:36.03 |
+54:45:55.0 |
HIP 46154 |
36.17 |
| 2026-09-23 00:00 |
09:21:12.10 |
+54:47:39.1 |
HIP 46154 |
31.33 |
| 2026-09-23 12:00 |
09:21:48.06 |
+54:49:24.1 |
HIP 46154 |
26.76 |
| 2026-09-24 00:00 |
09:22:23.93 |
+54:51:10.0 |
HIP 46154 |
22.64 |
| 2026-09-24 12:00 |
09:22:59.70 |
+54:52:56.8 |
HIP 46154 |
19.22 |
| 2026-09-25 00:00 |
09:23:35.37 |
+54:54:44.6 |
HIP 46154 |
16.93 |
| 2026-09-25 12:00 |
09:24:10.95 |
+54:56:33.3 |
HIP 46082 |
15.34 |
| 2026-09-26 00:00 |
09:24:46.43 |
+54:58:22.9 |
HIP 46082 |
15.46 |
| 2026-09-26 12:00 |
09:25:21.80 |
+55:00:13.5 |
HIP 46082 |
17.33 |
| 2026-09-27 00:00 |
09:25:57.08 |
+55:02:05.1 |
HIP 46082 |
20.46 |
| 2026-09-27 12:00 |
09:26:32.25 |
+55:03:57.5 |
HIP 46082 |
24.36 |
| 2026-09-28 00:00 |
09:27:07.32 |
+55:05:51.0 |
HIP 46082 |
28.72 |
| 2026-09-28 12:00 |
09:27:42.29 |
+55:07:45.4 |
HIP 46082 |
33.34 |
| 2026-09-29 00:00 |
09:28:17.15 |
+55:09:40.7 |
HIP 46726 |
28.20 |
| 2026-09-29 12:00 |
09:28:51.91 |
+55:11:37.1 |
HIP 46726 |
22.92 |
| 2026-09-30 00:00 |
09:29:26.57 |
+55:13:34.4 |
HIP 46726 |
17.70 |
| 2026-09-30 12:00 |
09:30:01.11 |
+55:15:32.7 |
HIP 46726 |
12.57 |
| 2026-10-01 00:00 |
09:30:35.55 |
+55:17:32.0 |
HIP 46726 |
7.72 |
| 2026-10-01 12:00 |
09:31:09.88 |
+55:19:32.2 |
HIP 46726 |
4.16 |
| 2026-10-02 00:00 |
09:31:44.11 |
+55:21:33.5 |
HIP 46726 |
5.57 |
| 2026-10-02 12:00 |
09:32:18.22 |
+55:23:35.8 |
HIP 46726 |
10.01 |
| 2026-10-03 00:00 |
09:32:52.22 |
+55:25:39.1 |
HIP 46726 |
14.99 |
| 2026-10-03 12:00 |
09:33:26.11 |
+55:27:43.4 |
HIP 46726 |
20.10 |
| 2026-10-04 00:00 |
09:33:59.88 |
+55:29:48.7 |
HIP 46726 |
25.25 |
| 2026-10-04 12:00 |
09:34:33.54 |
+55:31:55.0 |
HIP 46726 |
30.42 |
| 2026-10-05 00:00 |
09:35:07.09 |
+55:34:02.4 |
HIP 46726 |
35.59 |
| 2026-10-05 12:00 |
09:35:40.52 |
+55:36:10.8 |
HIP 47279 |
32.31 |
| 2026-10-06 00:00 |
09:36:13.83 |
+55:38:20.2 |
HIP 47279 |
27.76 |
| 2026-10-06 12:00 |
09:36:47.02 |
+55:40:30.7 |
HIP 47279 |
23.45 |
| 2026-10-07 00:00 |
09:37:20.09 |
+55:42:42.2 |
HIP 47279 |
19.55 |
| 2026-10-07 12:00 |
09:37:53.03 |
+55:44:54.8 |
HIP 47279 |
16.32 |
| 2026-10-08 00:00 |
09:38:25.86 |
+55:47:08.4 |
HIP 47279 |
14.24 |
| 2026-10-08 12:00 |
09:38:58.56 |
+55:49:23.1 |
HIP 47279 |
13.80 |
| 2026-10-09 00:00 |
09:39:31.14 |
+55:51:38.8 |
HIP 47521 |
14.82 |
| 2026-10-09 12:00 |
09:40:03.59 |
+55:53:55.6 |
HIP 47521 |
10.44 |
| 2026-10-10 00:00 |
09:40:35.91 |
+55:56:13.4 |
HIP 47521 |
7.12 |
| 2026-10-10 12:00 |
09:41:08.11 |
+55:58:32.4 |
HIP 47521 |
6.66 |
| 2026-10-11 00:00 |
09:41:40.17 |
+56:00:52.3 |
HIP 47521 |
9.46 |