メタデータ
| 項目 |
値 |
| Designation |
C/2024 J3 (ATLAS) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2026-11-25T09:28:47.688960Z |
| Orbit solution date (soln_date, UTC) |
2026-09-08T09:12:17Z |
| Obs used |
3033 |
| NEO |
- |
| M1 |
9.500 |
| K1 |
4.500 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2024-05-06T06:21:33.667200Z |
| Discovery magnitude (MPC) |
17.60 o |
| Discovery observatory (MPC) |
W68 · ATLAS Chile, Rio Hurtado |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2026-01-22.0000000 |
| e |
1.00036663 |
| q (au) |
3.865468 |
| a (au) |
-10543.325311 |
| i (deg) |
75.640891 |
| Ω (om, deg) |
285.961342 |
| ω (w, deg) |
74.088410 |
| M (ma, deg) |
-0.000280 |
等級
散乱 + 全体線形
$$
M_a = (5.370 + 3.372\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
5.370 |
| n |
3.372 |
| gf |
0.972 |
| gb |
-0.917 |
| k |
1.000 |
| δ90 |
9.849 |
| 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
ファインディングチャート
天体暦
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-09-20 00:00 |
18:27:38.93 |
+42:35:53.9 |
HIP 90351 |
17.97 |
| 2026-09-20 12:00 |
18:27:30.00 |
+42:34:22.2 |
HIP 90351 |
17.14 |
| 2026-09-21 00:00 |
18:27:21.44 |
+42:32:50.2 |
HIP 90351 |
16.64 |
| 2026-09-21 12:00 |
18:27:13.27 |
+42:31:17.8 |
HIP 90351 |
16.48 |
| 2026-09-22 00:00 |
18:27:05.48 |
+42:29:45.0 |
HIP 90351 |
16.64 |
| 2026-09-22 12:00 |
18:26:58.07 |
+42:28:12.1 |
HIP 90351 |
17.11 |
| 2026-09-23 00:00 |
18:26:51.04 |
+42:26:38.9 |
HIP 90351 |
17.83 |
| 2026-09-23 12:00 |
18:26:44.39 |
+42:25:05.5 |
HIP 90351 |
18.77 |
| 2026-09-24 00:00 |
18:26:38.12 |
+42:23:31.9 |
HIP 90351 |
19.89 |
| 2026-09-24 12:00 |
18:26:32.22 |
+42:21:58.2 |
HIP 90351 |
21.15 |
| 2026-09-25 00:00 |
18:26:26.69 |
+42:20:24.5 |
HIP 90351 |
22.50 |
| 2026-09-25 12:00 |
18:26:21.54 |
+42:18:50.6 |
HIP 90351 |
23.94 |
| 2026-09-26 00:00 |
18:26:16.76 |
+42:17:16.8 |
HIP 90351 |
25.42 |
| 2026-09-26 12:00 |
18:26:12.36 |
+42:15:42.9 |
HIP 90177 |
25.11 |
| 2026-09-27 00:00 |
18:26:08.32 |
+42:14:09.1 |
HIP 90177 |
23.87 |
| 2026-09-27 12:00 |
18:26:04.66 |
+42:12:35.3 |
HIP 90177 |
22.76 |
| 2026-09-28 00:00 |
18:26:01.36 |
+42:11:01.7 |
HIP 90177 |
21.80 |
| 2026-09-28 12:00 |
18:25:58.42 |
+42:09:28.1 |
HIP 90177 |
20.99 |
| 2026-09-29 00:00 |
18:25:55.86 |
+42:07:54.7 |
HIP 90177 |
20.35 |
| 2026-09-29 12:00 |
18:25:53.65 |
+42:06:21.5 |
HIP 90177 |
19.89 |
| 2026-09-30 00:00 |
18:25:51.82 |
+42:04:48.6 |
HIP 90177 |
19.63 |
| 2026-09-30 12:00 |
18:25:50.34 |
+42:03:15.8 |
HIP 90177 |
19.55 |
| 2026-10-01 00:00 |
18:25:49.22 |
+42:01:43.4 |
HIP 90177 |
19.66 |
| 2026-10-01 12:00 |
18:25:48.47 |
+42:00:11.2 |
HIP 90177 |
19.95 |
| 2026-10-02 00:00 |
18:25:48.07 |
+41:58:39.4 |
HIP 90177 |
20.42 |
| 2026-10-02 12:00 |
18:25:48.03 |
+41:57:08.0 |
HIP 90177 |
21.04 |
| 2026-10-03 00:00 |
18:25:48.35 |
+41:55:36.9 |
HIP 90177 |
21.81 |
| 2026-10-03 12:00 |
18:25:49.03 |
+41:54:06.3 |
HIP 90177 |
22.71 |
| 2026-10-04 00:00 |
18:25:50.05 |
+41:52:36.1 |
HIP 90177 |
23.72 |
| 2026-10-04 12:00 |
18:25:51.44 |
+41:51:06.5 |
HIP 90177 |
24.82 |
| 2026-10-05 00:00 |
18:25:53.17 |
+41:49:37.3 |
HIP 90177 |
26.02 |
| 2026-10-05 12:00 |
18:25:55.26 |
+41:48:08.7 |
HIP 90297 |
25.67 |
| 2026-10-06 00:00 |
18:25:57.69 |
+41:46:40.6 |
HIP 90297 |
24.33 |
| 2026-10-06 12:00 |
18:26:00.47 |
+41:45:13.1 |
HIP 90297 |
23.03 |
| 2026-10-07 00:00 |
18:26:03.60 |
+41:43:46.3 |
HIP 90297 |
21.80 |
| 2026-10-07 12:00 |
18:26:07.08 |
+41:42:20.1 |
HIP 90297 |
20.65 |
| 2026-10-08 00:00 |
18:26:10.90 |
+41:40:54.7 |
HIP 90297 |
19.59 |
| 2026-10-08 12:00 |
18:26:15.07 |
+41:39:29.9 |
HIP 90297 |
18.65 |
| 2026-10-09 00:00 |
18:26:19.57 |
+41:38:05.9 |
HIP 90297 |
17.84 |
| 2026-10-09 12:00 |
18:26:24.42 |
+41:36:42.7 |
HIP 90297 |
17.21 |
| 2026-10-10 00:00 |
18:26:29.61 |
+41:35:20.3 |
HIP 90297 |
16.77 |
| 2026-10-10 12:00 |
18:26:35.13 |
+41:33:58.7 |
HIP 90297 |
16.55 |
| 2026-10-11 00:00 |
18:26:40.99 |
+41:32:38.0 |
HIP 90297 |
16.56 |