メタデータ
| 項目 |
値 |
| Designation |
C/1993 Q1 (Mueller) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
1994-03-26T06:39:06.874560Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:29:47Z |
| Obs used |
495 |
| NEO |
- |
| M1 |
9.800 |
| 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) |
1993-10-28.0000000 |
| e |
1.00032242 |
| q (au) |
0.967251 |
| a (au) |
-2999.968986 |
| i (deg) |
105.026500 |
| Ω (om, deg) |
193.788984 |
| ω (w, deg) |
261.032961 |
| M (ma, deg) |
-0.000895 |
等級
散乱 + 全体線形
$$
M_a = (8.169 + 4.619\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
8.169 |
| n |
4.619 |
| gf |
1.000 |
| gb |
-0.687 |
| 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 |
| 1992-09-28 |
1993-12-09 |
-0.3959 |
+0.181 |
| 1993-12-09 |
1994-02-02 |
+0.8399 |
-0.656 |
| 1994-04-01 |
1994-07-02 |
+14.9311 |
-0.152 |
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) |
| 2026-05-12 00:00 |
13:44:14.05 |
+60:22:26.2 |
HIP 67002 |
13.97 |
| 2026-05-12 12:00 |
13:44:10.41 |
+60:22:18.9 |
HIP 67002 |
13.77 |
| 2026-05-13 00:00 |
13:44:06.78 |
+60:22:11.3 |
HIP 67002 |
13.58 |
| 2026-05-13 12:00 |
13:44:03.17 |
+60:22:03.5 |
HIP 67002 |
13.39 |
| 2026-05-14 00:00 |
13:43:59.58 |
+60:21:55.4 |
HIP 67002 |
13.22 |
| 2026-05-14 12:00 |
13:43:56.00 |
+60:21:47.1 |
HIP 67002 |
13.06 |
| 2026-05-15 00:00 |
13:43:52.44 |
+60:21:38.5 |
HIP 67002 |
12.91 |
| 2026-05-15 12:00 |
13:43:48.89 |
+60:21:29.7 |
HIP 67002 |
12.77 |
| 2026-05-16 00:00 |
13:43:45.36 |
+60:21:20.6 |
HIP 67002 |
12.64 |
| 2026-05-16 12:00 |
13:43:41.84 |
+60:21:11.3 |
HIP 67002 |
12.52 |
| 2026-05-17 00:00 |
13:43:38.34 |
+60:21:01.8 |
HIP 67002 |
12.42 |
| 2026-05-17 12:00 |
13:43:34.86 |
+60:20:52.0 |
HIP 67002 |
12.32 |
| 2026-05-18 00:00 |
13:43:31.40 |
+60:20:41.9 |
HIP 67002 |
12.24 |
| 2026-05-18 12:00 |
13:43:27.95 |
+60:20:31.6 |
HIP 67002 |
12.18 |
| 2026-05-19 00:00 |
13:43:24.52 |
+60:20:21.1 |
HIP 67002 |
12.12 |
| 2026-05-19 12:00 |
13:43:21.11 |
+60:20:10.4 |
HIP 67002 |
12.08 |
| 2026-05-20 00:00 |
13:43:17.72 |
+60:19:59.4 |
HIP 67002 |
12.05 |
| 2026-05-20 12:00 |
13:43:14.35 |
+60:19:48.1 |
HIP 67002 |
12.03 |
| 2026-05-21 00:00 |
13:43:10.99 |
+60:19:36.6 |
HIP 67002 |
12.03 |
| 2026-05-21 12:00 |
13:43:07.66 |
+60:19:24.9 |
HIP 67002 |
12.03 |
| 2026-05-22 00:00 |
13:43:04.34 |
+60:19:13.0 |
HIP 67002 |
12.06 |
| 2026-05-22 12:00 |
13:43:01.05 |
+60:19:00.8 |
HIP 67002 |
12.09 |
| 2026-05-23 00:00 |
13:42:57.77 |
+60:18:48.4 |
HIP 67002 |
12.14 |
| 2026-05-23 12:00 |
13:42:54.52 |
+60:18:35.8 |
HIP 67002 |
12.20 |
| 2026-05-24 00:00 |
13:42:51.28 |
+60:18:22.9 |
HIP 67002 |
12.27 |
| 2026-05-24 12:00 |
13:42:48.07 |
+60:18:09.9 |
HIP 67002 |
12.35 |
| 2026-05-25 00:00 |
13:42:44.87 |
+60:17:56.6 |
HIP 67002 |
12.45 |
| 2026-05-25 12:00 |
13:42:41.70 |
+60:17:43.0 |
HIP 67002 |
12.55 |
| 2026-05-26 00:00 |
13:42:38.55 |
+60:17:29.3 |
HIP 67002 |
12.67 |
| 2026-05-26 12:00 |
13:42:35.42 |
+60:17:15.3 |
HIP 67002 |
12.80 |
| 2026-05-27 00:00 |
13:42:32.31 |
+60:17:01.1 |
HIP 67002 |
12.93 |
| 2026-05-27 12:00 |
13:42:29.23 |
+60:16:46.7 |
HIP 67002 |
13.08 |
| 2026-05-28 00:00 |
13:42:26.16 |
+60:16:32.1 |
HIP 67002 |
13.24 |
| 2026-05-28 12:00 |
13:42:23.12 |
+60:16:17.2 |
HIP 67002 |
13.41 |
| 2026-05-29 00:00 |
13:42:20.10 |
+60:16:02.2 |
HIP 67002 |
13.58 |
| 2026-05-29 12:00 |
13:42:17.10 |
+60:15:46.9 |
HIP 67002 |
13.77 |
| 2026-05-30 00:00 |
13:42:14.13 |
+60:15:31.4 |
HIP 67002 |
13.96 |
| 2026-05-30 12:00 |
13:42:11.18 |
+60:15:15.7 |
HIP 67002 |
14.16 |
| 2026-05-31 00:00 |
13:42:08.25 |
+60:14:59.8 |
HIP 67002 |
14.37 |
| 2026-05-31 12:00 |
13:42:05.35 |
+60:14:43.7 |
HIP 67002 |
14.58 |
| 2026-06-01 00:00 |
13:42:02.46 |
+60:14:27.4 |
HIP 67002 |
14.80 |
| 2026-06-01 12:00 |
13:41:59.61 |
+60:14:10.9 |
HIP 67002 |
15.03 |
| 2026-06-02 00:00 |
13:41:56.77 |
+60:13:54.2 |
HIP 67002 |
15.26 |