メタデータ
| 項目 |
値 |
| Designation |
248P/Gibbs |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2011-02-05T10:57:25.790400Z |
| Orbit solution date (soln_date, UTC) |
2026-04-14T13:42:33Z |
| Obs used |
345 |
| NEO |
- |
| M1 |
16.000 |
| K1 |
4.500 |
| PC |
- |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2016-06-27.0000000 |
| e |
0.63834584 |
| q (au) |
2.165430 |
| a (au) |
5.987571 |
| i (deg) |
6.354176 |
| Ω (om, deg) |
207.784271 |
| ω (w, deg) |
210.161843 |
| M (ma, deg) |
132.425937 |
等級
散乱 + 全体線形
$$
M_a = (15.555 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
15.555 |
| n |
2.000 |
| gf |
1.000 |
| gb |
-0.732 |
| k |
0.994 |
| 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
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 |
10:34:27.16 |
+04:32:58.7 |
HIP 51825 |
20.31 |
| 2026-09-20 12:00 |
10:34:59.98 |
+04:29:44.6 |
HIP 51825 |
19.99 |
| 2026-09-21 00:00 |
10:35:32.73 |
+04:26:30.7 |
HIP 51825 |
23.27 |
| 2026-09-21 12:00 |
10:36:05.39 |
+04:23:16.9 |
HIP 52013 |
22.86 |
| 2026-09-22 00:00 |
10:36:37.98 |
+04:20:03.2 |
HIP 52013 |
14.58 |
| 2026-09-22 12:00 |
10:37:10.49 |
+04:16:49.6 |
HIP 52013 |
7.44 |
| 2026-09-23 00:00 |
10:37:42.91 |
+04:13:36.2 |
HIP 52013 |
7.10 |
| 2026-09-23 12:00 |
10:38:15.26 |
+04:10:22.9 |
HIP 52013 |
14.02 |
| 2026-09-24 00:00 |
10:38:47.52 |
+04:07:09.8 |
HIP 52013 |
22.20 |
| 2026-09-24 12:00 |
10:39:19.71 |
+04:03:56.8 |
HIP 52243 |
16.64 |
| 2026-09-25 00:00 |
10:39:51.81 |
+04:00:44.0 |
HIP 52243 |
8.59 |
| 2026-09-25 12:00 |
10:40:23.83 |
+03:57:31.3 |
HIP 52243 |
4.42 |
| 2026-09-26 00:00 |
10:40:55.77 |
+03:54:18.9 |
HIP 52243 |
10.64 |
| 2026-09-26 12:00 |
10:41:27.63 |
+03:51:06.6 |
HIP 52285 |
16.60 |
| 2026-09-27 00:00 |
10:41:59.40 |
+03:47:54.5 |
HIP 52401 |
16.05 |
| 2026-09-27 12:00 |
10:42:31.09 |
+03:44:42.5 |
HIP 52401 |
9.86 |
| 2026-09-28 00:00 |
10:43:02.70 |
+03:41:30.8 |
HIP 52401 |
9.06 |
| 2026-09-28 12:00 |
10:43:34.22 |
+03:38:19.2 |
HIP 52401 |
14.53 |
| 2026-09-29 00:00 |
10:44:05.66 |
+03:35:07.9 |
HIP 52591 |
19.01 |
| 2026-09-29 12:00 |
10:44:37.02 |
+03:31:56.7 |
HIP 52574 |
14.93 |
| 2026-09-30 00:00 |
10:45:08.29 |
+03:28:45.7 |
HIP 52574 |
10.47 |
| 2026-09-30 12:00 |
10:45:39.47 |
+03:25:35.0 |
HIP 52574 |
11.75 |
| 2026-10-01 00:00 |
10:46:10.57 |
+03:22:24.5 |
HIP 52574 |
17.52 |
| 2026-10-01 12:00 |
10:46:41.58 |
+03:19:14.2 |
HIP 52574 |
24.81 |
| 2026-10-02 00:00 |
10:47:12.51 |
+03:16:04.1 |
HIP 52574 |
32.60 |
| 2026-10-02 12:00 |
10:47:43.35 |
+03:12:54.3 |
HIP 52919 |
28.39 |
| 2026-10-03 00:00 |
10:48:14.10 |
+03:09:44.7 |
HIP 52919 |
24.02 |
| 2026-10-03 12:00 |
10:48:44.76 |
+03:06:35.3 |
HIP 52919 |
22.05 |
| 2026-10-04 00:00 |
10:49:15.34 |
+03:03:26.2 |
HIP 52919 |
23.07 |
| 2026-10-04 12:00 |
10:49:45.82 |
+03:00:17.4 |
HIP 52919 |
26.72 |
| 2026-10-05 00:00 |
10:50:16.22 |
+02:57:08.8 |
HIP 53047 |
20.25 |
| 2026-10-05 12:00 |
10:50:46.52 |
+02:54:00.5 |
HIP 53047 |
13.19 |
| 2026-10-06 00:00 |
10:51:16.74 |
+02:50:52.4 |
HIP 53047 |
8.47 |
| 2026-10-06 12:00 |
10:51:46.86 |
+02:47:44.7 |
HIP 53047 |
10.14 |
| 2026-10-07 00:00 |
10:52:16.89 |
+02:44:37.2 |
HIP 53047 |
16.30 |
| 2026-10-07 12:00 |
10:52:46.83 |
+02:41:30.0 |
HIP 53284 |
16.37 |
| 2026-10-08 00:00 |
10:53:16.67 |
+02:38:23.1 |
HIP 53284 |
8.86 |
| 2026-10-08 12:00 |
10:53:46.42 |
+02:35:16.6 |
HIP 53284 |
4.41 |
| 2026-10-09 00:00 |
10:54:16.08 |
+02:32:10.3 |
HIP 53284 |
9.48 |
| 2026-10-09 12:00 |
10:54:45.63 |
+02:29:04.4 |
HIP 53284 |
16.98 |
| 2026-10-10 00:00 |
10:55:15.10 |
+02:25:58.8 |
HIP 53284 |
24.78 |
| 2026-10-10 12:00 |
10:55:44.46 |
+02:22:53.6 |
HIP 53464 |
20.58 |
| 2026-10-11 00:00 |
10:56:13.73 |
+02:19:48.6 |
HIP 53464 |
16.24 |