メタデータ
| 項目 |
値 |
| Designation |
92P/Sanguin |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2002-09-23T00:27:20.165760Z |
| Orbit solution date (soln_date, UTC) |
2026-06-22T10:17:36Z |
| Obs used |
952 |
| NEO |
- |
| M1 |
11.600 |
| K1 |
15.000 |
| PC |
0.030 |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2003-12-09.0000000 |
| e |
0.66312972 |
| q (au) |
1.807849 |
| a (au) |
5.366603 |
| i (deg) |
18.764751 |
| Ω (om, deg) |
182.342677 |
| ω (w, deg) |
163.064416 |
| M (ma, deg) |
35.039547 |
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) |
| 2026-09-20 00:00 |
15:31:21.45 |
-03:01:08.0 |
HIP 75867 |
25.86 |
| 2026-09-20 12:00 |
15:31:50.92 |
-03:04:01.0 |
HIP 76111 |
26.99 |
| 2026-09-21 00:00 |
15:32:20.56 |
-03:06:53.9 |
HIP 76111 |
21.60 |
| 2026-09-21 12:00 |
15:32:50.39 |
-03:09:46.7 |
HIP 76183 |
14.79 |
| 2026-09-22 00:00 |
15:33:20.40 |
-03:12:39.4 |
HIP 76183 |
7.27 |
| 2026-09-22 12:00 |
15:33:50.58 |
-03:15:32.1 |
HIP 76183 |
4.00 |
| 2026-09-23 00:00 |
15:34:20.95 |
-03:18:24.6 |
HIP 76183 |
10.50 |
| 2026-09-23 12:00 |
15:34:51.49 |
-03:21:17.0 |
HIP 76292 |
3.86 |
| 2026-09-24 00:00 |
15:35:22.20 |
-03:24:09.2 |
HIP 76292 |
6.48 |
| 2026-09-24 12:00 |
15:35:53.09 |
-03:27:01.3 |
HIP 76356 |
3.58 |
| 2026-09-25 00:00 |
15:36:24.16 |
-03:29:53.3 |
HIP 76356 |
10.57 |
| 2026-09-25 12:00 |
15:36:55.40 |
-03:32:45.1 |
HIP 76528 |
13.02 |
| 2026-09-26 00:00 |
15:37:26.81 |
-03:35:36.8 |
HIP 76528 |
4.73 |
| 2026-09-26 12:00 |
15:37:58.40 |
-03:38:28.3 |
HIP 76528 |
3.86 |
| 2026-09-27 00:00 |
15:38:30.16 |
-03:41:19.6 |
HIP 76528 |
12.20 |
| 2026-09-27 12:00 |
15:39:02.09 |
-03:44:10.7 |
HIP 76528 |
20.65 |
| 2026-09-28 00:00 |
15:39:34.20 |
-03:47:01.6 |
HIP 76784 |
24.32 |
| 2026-09-28 12:00 |
15:40:06.47 |
-03:49:52.3 |
HIP 76784 |
22.58 |
| 2026-09-29 00:00 |
15:40:38.92 |
-03:52:42.8 |
HIP 76784 |
23.97 |
| 2026-09-29 12:00 |
15:41:11.53 |
-03:55:33.1 |
HIP 76784 |
28.04 |
| 2026-09-30 00:00 |
15:41:44.32 |
-03:58:23.2 |
HIP 77008 |
25.29 |
| 2026-09-30 12:00 |
15:42:17.28 |
-04:01:13.0 |
HIP 77008 |
17.68 |
| 2026-10-01 00:00 |
15:42:50.40 |
-04:04:02.6 |
HIP 77008 |
11.64 |
| 2026-10-01 12:00 |
15:43:23.70 |
-04:06:52.0 |
HIP 77008 |
10.53 |
| 2026-10-02 00:00 |
15:43:57.16 |
-04:09:41.1 |
HIP 77008 |
15.52 |
| 2026-10-02 12:00 |
15:44:30.80 |
-04:12:29.9 |
HIP 77089 |
22.22 |
| 2026-10-03 00:00 |
15:45:04.60 |
-04:15:18.5 |
HIP 77266 |
24.48 |
| 2026-10-03 12:00 |
15:45:38.57 |
-04:18:06.7 |
HIP 77266 |
19.51 |
| 2026-10-04 00:00 |
15:46:12.70 |
-04:20:54.7 |
HIP 77266 |
17.89 |
| 2026-10-04 12:00 |
15:46:47.00 |
-04:23:42.4 |
HIP 77266 |
20.51 |
| 2026-10-05 00:00 |
15:47:21.47 |
-04:26:29.8 |
HIP 77410 |
24.17 |
| 2026-10-05 12:00 |
15:47:56.11 |
-04:29:16.8 |
HIP 77410 |
18.30 |
| 2026-10-06 00:00 |
15:48:30.90 |
-04:32:03.5 |
HIP 77410 |
15.83 |
| 2026-10-06 12:00 |
15:49:05.87 |
-04:34:49.9 |
HIP 77410 |
18.25 |
| 2026-10-07 00:00 |
15:49:41.00 |
-04:37:35.9 |
HIP 77486 |
20.90 |
| 2026-10-07 12:00 |
15:50:16.29 |
-04:40:21.6 |
HIP 77486 |
22.63 |
| 2026-10-08 00:00 |
15:50:51.75 |
-04:43:06.9 |
HIP 77486 |
27.56 |
| 2026-10-08 12:00 |
15:51:27.37 |
-04:45:51.9 |
HIP 77486 |
34.36 |
| 2026-10-09 00:00 |
15:52:03.15 |
-04:48:36.4 |
HIP 77843 |
30.86 |
| 2026-10-09 12:00 |
15:52:39.10 |
-04:51:20.6 |
HIP 77843 |
26.73 |
| 2026-10-10 00:00 |
15:53:15.20 |
-04:54:04.4 |
HIP 77876 |
23.70 |
| 2026-10-10 12:00 |
15:53:51.47 |
-04:56:47.7 |
HIP 77876 |
17.20 |
| 2026-10-11 00:00 |
15:54:27.89 |
-04:59:30.6 |
HIP 77876 |
14.43 |