メタデータ
| 項目 |
値 |
| Designation |
92P/Sanguin |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2015-03-01T04:24:17.484480Z |
| Orbit solution date (soln_date, UTC) |
2015-12-09T11:26:49Z |
| Obs used |
919 |
| NEO |
- |
| M1 |
11.100 |
| K1 |
17.000 |
| PC |
0.030 |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2015-12-19.0000000 |
| e |
0.65932548 |
| q (au) |
1.825456 |
| a (au) |
5.358357 |
| i (deg) |
19.444606 |
| Ω (om, deg) |
181.458916 |
| ω (w, deg) |
163.789034 |
| M (ma, deg) |
23.267628 |
等級
散乱 + 全体線形
$$
M_a = (17.783 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
17.783 |
| n |
2.000 |
| gf |
1.000 |
| gb |
-0.590 |
| k |
0.800 |
| 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
残差 (区間線形)
$$\epsilon = a \log_{10} r_{\mathrm{au}} + b$$
| 開始日 (UTC) |
終了日 (UTC) |
a |
b |
| 2014-04-30 |
2014-08-21 |
+1.5336 |
-0.375 |
| 2015-09-19 |
2016-01-13 |
+4.8411 |
-2.744 |
log10 r = log10(太陽距離/AU)、Δ = 地球距離(AU)
天体暦
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-06-01 00:00 |
15:13:44.48 |
+02:34:17.7 |
HIP 74513 |
19.39 |
| 2026-06-01 12:00 |
15:13:25.59 |
+02:35:38.2 |
HIP 74513 |
20.76 |
| 2026-06-02 00:00 |
15:13:06.79 |
+02:36:56.7 |
HIP 74513 |
23.06 |
| 2026-06-02 12:00 |
15:12:48.11 |
+02:38:13.3 |
HIP 74328 |
22.65 |
| 2026-06-03 00:00 |
15:12:29.53 |
+02:39:27.9 |
HIP 74328 |
18.07 |
| 2026-06-03 12:00 |
15:12:11.06 |
+02:40:40.5 |
HIP 74328 |
13.68 |
| 2026-06-04 00:00 |
15:11:52.71 |
+02:41:51.1 |
HIP 74328 |
9.70 |
| 2026-06-04 12:00 |
15:11:34.48 |
+02:42:59.8 |
HIP 74328 |
6.81 |
| 2026-06-05 00:00 |
15:11:16.37 |
+02:44:06.4 |
HIP 74328 |
6.54 |
| 2026-06-05 12:00 |
15:10:58.38 |
+02:45:11.0 |
HIP 74328 |
9.08 |
| 2026-06-06 00:00 |
15:10:40.52 |
+02:46:13.6 |
HIP 74328 |
12.82 |
| 2026-06-06 12:00 |
15:10:22.80 |
+02:47:14.2 |
HIP 74328 |
16.94 |
| 2026-06-07 00:00 |
15:10:05.20 |
+02:48:12.8 |
HIP 74328 |
21.21 |
| 2026-06-07 12:00 |
15:09:47.75 |
+02:49:09.3 |
HIP 74190 |
20.99 |
| 2026-06-08 00:00 |
15:09:30.44 |
+02:50:03.8 |
HIP 74190 |
19.92 |
| 2026-06-08 12:00 |
15:09:13.27 |
+02:50:56.2 |
HIP 74190 |
19.83 |
| 2026-06-09 00:00 |
15:08:56.25 |
+02:51:46.6 |
HIP 74088 |
20.06 |
| 2026-06-09 12:00 |
15:08:39.37 |
+02:52:35.0 |
HIP 74088 |
18.26 |
| 2026-06-10 00:00 |
15:08:22.66 |
+02:53:21.3 |
HIP 74088 |
17.39 |
| 2026-06-10 12:00 |
15:08:06.09 |
+02:54:05.5 |
HIP 74088 |
17.55 |
| 2026-06-11 00:00 |
15:07:49.69 |
+02:54:47.7 |
HIP 74088 |
18.69 |
| 2026-06-11 12:00 |
15:07:33.45 |
+02:55:27.8 |
HIP 73930 |
17.14 |
| 2026-06-12 00:00 |
15:07:17.38 |
+02:56:05.8 |
HIP 73930 |
13.13 |
| 2026-06-12 12:00 |
15:07:01.47 |
+02:56:41.8 |
HIP 73930 |
9.23 |
| 2026-06-13 00:00 |
15:06:45.74 |
+02:57:15.7 |
HIP 73930 |
5.54 |
| 2026-06-13 12:00 |
15:06:30.18 |
+02:57:47.5 |
HIP 73930 |
2.81 |
| 2026-06-14 00:00 |
15:06:14.80 |
+02:58:17.3 |
HIP 73930 |
3.97 |
| 2026-06-14 12:00 |
15:05:59.60 |
+02:58:44.9 |
HIP 73930 |
7.29 |
| 2026-06-15 00:00 |
15:05:44.58 |
+02:59:10.6 |
HIP 73930 |
10.90 |
| 2026-06-15 12:00 |
15:05:29.74 |
+02:59:34.1 |
HIP 73930 |
14.55 |
| 2026-06-16 00:00 |
15:05:15.10 |
+02:59:55.6 |
HIP 73930 |
18.18 |
| 2026-06-16 12:00 |
15:05:00.65 |
+03:00:15.0 |
HIP 73930 |
21.78 |
| 2026-06-17 00:00 |
15:04:46.39 |
+03:00:32.4 |
HIP 73930 |
25.34 |
| 2026-06-17 12:00 |
15:04:32.32 |
+03:00:47.7 |
HIP 73930 |
28.85 |
| 2026-06-18 00:00 |
15:04:18.46 |
+03:01:00.9 |
HIP 73930 |
32.31 |
| 2026-06-18 12:00 |
15:04:04.79 |
+03:01:12.1 |
HIP 73930 |
35.73 |
| 2026-06-19 00:00 |
15:03:51.33 |
+03:01:21.3 |
HIP 73544 |
35.96 |
| 2026-06-19 12:00 |
15:03:38.08 |
+03:01:28.5 |
HIP 73544 |
33.20 |
| 2026-06-20 00:00 |
15:03:25.03 |
+03:01:33.6 |
HIP 73544 |
30.62 |
| 2026-06-20 12:00 |
15:03:12.19 |
+03:01:36.7 |
HIP 73544 |
28.24 |
| 2026-06-21 00:00 |
15:02:59.56 |
+03:01:37.8 |
HIP 73544 |
26.10 |
| 2026-06-21 12:00 |
15:02:47.15 |
+03:01:36.9 |
HIP 73544 |
24.24 |
| 2026-06-22 00:00 |
15:02:34.94 |
+03:01:33.9 |
HIP 73544 |
22.70 |