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) |
| 2026-03-26 00:00 |
05:33:40.14 |
+51:31:36.1 |
HIP 26031 |
5.33 |
| 2026-03-26 12:00 |
05:34:00.76 |
+51:31:38.6 |
HIP 26031 |
8.09 |
| 2026-03-27 00:00 |
05:34:21.62 |
+51:31:41.3 |
HIP 26031 |
11.13 |
| 2026-03-27 12:00 |
05:34:42.72 |
+51:31:44.2 |
HIP 26031 |
14.30 |
| 2026-03-28 00:00 |
05:35:04.06 |
+51:31:47.3 |
HIP 26031 |
17.55 |
| 2026-03-28 12:00 |
05:35:25.64 |
+51:31:50.5 |
HIP 26031 |
20.85 |
| 2026-03-29 00:00 |
05:35:47.45 |
+51:31:53.9 |
HIP 26505 |
23.15 |
| 2026-03-29 12:00 |
05:36:09.49 |
+51:31:57.5 |
HIP 26505 |
19.83 |
| 2026-03-30 00:00 |
05:36:31.77 |
+51:32:01.3 |
HIP 26505 |
16.53 |
| 2026-03-30 12:00 |
05:36:54.27 |
+51:32:05.3 |
HIP 26505 |
13.29 |
| 2026-03-31 00:00 |
05:37:17.01 |
+51:32:09.4 |
HIP 26505 |
10.19 |
| 2026-03-31 12:00 |
05:37:39.96 |
+51:32:13.7 |
HIP 26505 |
7.46 |
| 2026-04-01 00:00 |
05:38:03.15 |
+51:32:18.2 |
HIP 26505 |
5.76 |
| 2026-04-01 12:00 |
05:38:26.55 |
+51:32:22.9 |
HIP 26505 |
6.07 |
| 2026-04-02 00:00 |
05:38:50.18 |
+51:32:27.7 |
HIP 26505 |
8.22 |
| 2026-04-02 12:00 |
05:39:14.02 |
+51:32:32.8 |
HIP 26505 |
11.22 |
| 2026-04-03 00:00 |
05:39:38.09 |
+51:32:38.0 |
HIP 26622 |
12.56 |
| 2026-04-03 12:00 |
05:40:02.37 |
+51:32:43.4 |
HIP 26622 |
13.54 |
| 2026-04-04 00:00 |
05:40:26.86 |
+51:32:49.0 |
HIP 26622 |
15.43 |
| 2026-04-04 12:00 |
05:40:51.56 |
+51:32:54.7 |
HIP 26622 |
17.98 |
| 2026-04-05 00:00 |
05:41:16.48 |
+51:33:00.6 |
HIP 26622 |
20.95 |
| 2026-04-05 12:00 |
05:41:41.61 |
+51:33:06.8 |
HIP 26622 |
24.21 |
| 2026-04-06 00:00 |
05:42:06.94 |
+51:33:13.0 |
HIP 26622 |
27.67 |
| 2026-04-06 12:00 |
05:42:32.48 |
+51:33:19.5 |
HIP 26622 |
31.28 |
| 2026-04-07 00:00 |
05:42:58.23 |
+51:33:26.1 |
HIP 26622 |
35.00 |
| 2026-04-07 12:00 |
05:43:24.18 |
+51:33:32.9 |
HIP 27293 |
33.65 |
| 2026-04-08 00:00 |
05:43:50.33 |
+51:33:39.9 |
HIP 27293 |
29.60 |
| 2026-04-08 12:00 |
05:44:16.68 |
+51:33:47.1 |
HIP 27293 |
25.53 |
| 2026-04-09 00:00 |
05:44:43.23 |
+51:33:54.4 |
HIP 27293 |
21.44 |
| 2026-04-09 12:00 |
05:45:09.98 |
+51:34:01.9 |
HIP 27293 |
17.34 |
| 2026-04-10 00:00 |
05:45:36.92 |
+51:34:09.6 |
HIP 27293 |
13.25 |
| 2026-04-10 12:00 |
05:46:04.06 |
+51:34:17.5 |
HIP 27293 |
9.22 |
| 2026-04-11 00:00 |
05:46:31.39 |
+51:34:25.5 |
HIP 27293 |
5.47 |
| 2026-04-11 12:00 |
05:46:58.92 |
+51:34:33.7 |
HIP 27293 |
3.31 |
| 2026-04-12 00:00 |
05:47:26.63 |
+51:34:42.0 |
HIP 27293 |
5.38 |
| 2026-04-12 12:00 |
05:47:54.54 |
+51:34:50.6 |
HIP 27293 |
9.20 |
| 2026-04-13 00:00 |
05:48:22.63 |
+51:34:59.3 |
HIP 27293 |
13.37 |
| 2026-04-13 12:00 |
05:48:50.90 |
+51:35:08.1 |
HIP 27529 |
15.66 |
| 2026-04-14 00:00 |
05:49:19.36 |
+51:35:17.2 |
HIP 27529 |
13.70 |
| 2026-04-14 12:00 |
05:49:48.01 |
+51:35:26.4 |
HIP 27625 |
11.54 |
| 2026-04-15 00:00 |
05:50:16.84 |
+51:35:35.8 |
HIP 27625 |
7.73 |
| 2026-04-15 12:00 |
05:50:45.84 |
+51:35:45.3 |
HIP 27625 |
5.13 |
| 2026-04-16 00:00 |
05:51:15.03 |
+51:35:55.0 |
HIP 27625 |
5.82 |