メタデータ
| 項目 |
値 |
| Designation |
C/2006 VZ13 (LINEAR) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2007-08-10T21:23:55.631040Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:31:01Z |
| Obs used |
1025 |
| NEO |
- |
| M1 |
13.900 |
| 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) |
2007-06-13.0000000 |
| e |
1.00024586 |
| q (au) |
1.015252 |
| a (au) |
-4129.358475 |
| i (deg) |
134.793320 |
| Ω (om, deg) |
66.026904 |
| ω (w, deg) |
174.115312 |
| M (ma, deg) |
-0.000219 |
等級
散乱 + 全体線形
$$
M_a = (7.897 + 4.279\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
7.897 |
| n |
4.279 |
| gf |
1.000 |
| gb |
-1.000 |
| k |
0.997 |
| 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 |
| 2007-04-21 |
2007-06-18 |
-9.3464 |
+2.007 |
| 2007-06-18 |
2007-08-09 |
+1.4862 |
+0.135 |
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 |
05:42:10.17 |
+06:16:55.6 |
HIP 27036 |
31.40 |
| 2026-09-20 12:00 |
05:42:09.97 |
+06:16:43.4 |
HIP 27036 |
31.54 |
| 2026-09-21 00:00 |
05:42:09.74 |
+06:16:31.2 |
HIP 27036 |
31.68 |
| 2026-09-21 12:00 |
05:42:09.48 |
+06:16:18.9 |
HIP 27036 |
31.83 |
| 2026-09-22 00:00 |
05:42:09.20 |
+06:16:06.6 |
HIP 27036 |
31.99 |
| 2026-09-22 12:00 |
05:42:08.89 |
+06:15:54.4 |
HIP 27036 |
32.15 |
| 2026-09-23 00:00 |
05:42:08.55 |
+06:15:42.1 |
HIP 27036 |
32.32 |
| 2026-09-23 12:00 |
05:42:08.19 |
+06:15:29.8 |
HIP 27036 |
32.50 |
| 2026-09-24 00:00 |
05:42:07.81 |
+06:15:17.5 |
HIP 27036 |
32.68 |
| 2026-09-24 12:00 |
05:42:07.40 |
+06:15:05.2 |
HIP 27036 |
32.87 |
| 2026-09-25 00:00 |
05:42:06.96 |
+06:14:52.9 |
HIP 27036 |
33.06 |
| 2026-09-25 12:00 |
05:42:06.50 |
+06:14:40.6 |
HIP 26664 |
32.91 |
| 2026-09-26 00:00 |
05:42:06.01 |
+06:14:28.2 |
HIP 26664 |
32.73 |
| 2026-09-26 12:00 |
05:42:05.49 |
+06:14:15.9 |
HIP 26664 |
32.54 |
| 2026-09-27 00:00 |
05:42:04.95 |
+06:14:03.6 |
HIP 26664 |
32.35 |
| 2026-09-27 12:00 |
05:42:04.38 |
+06:13:51.3 |
HIP 26664 |
32.15 |
| 2026-09-28 00:00 |
05:42:03.79 |
+06:13:39.0 |
HIP 26664 |
31.95 |
| 2026-09-28 12:00 |
05:42:03.17 |
+06:13:26.6 |
HIP 26664 |
31.74 |
| 2026-09-29 00:00 |
05:42:02.53 |
+06:13:14.3 |
HIP 26664 |
31.52 |
| 2026-09-29 12:00 |
05:42:01.86 |
+06:13:02.0 |
HIP 26664 |
31.30 |
| 2026-09-30 00:00 |
05:42:01.16 |
+06:12:49.7 |
HIP 26664 |
31.08 |
| 2026-09-30 12:00 |
05:42:00.44 |
+06:12:37.4 |
HIP 26664 |
30.84 |
| 2026-10-01 00:00 |
05:41:59.70 |
+06:12:25.1 |
HIP 26664 |
30.61 |
| 2026-10-01 12:00 |
05:41:58.92 |
+06:12:12.8 |
HIP 26664 |
30.36 |
| 2026-10-02 00:00 |
05:41:58.12 |
+06:12:00.5 |
HIP 26664 |
30.12 |
| 2026-10-02 12:00 |
05:41:57.30 |
+06:11:48.3 |
HIP 26664 |
29.86 |
| 2026-10-03 00:00 |
05:41:56.45 |
+06:11:36.0 |
HIP 26664 |
29.61 |
| 2026-10-03 12:00 |
05:41:55.57 |
+06:11:23.7 |
HIP 26664 |
29.34 |
| 2026-10-04 00:00 |
05:41:54.67 |
+06:11:11.5 |
HIP 26664 |
29.07 |
| 2026-10-04 12:00 |
05:41:53.74 |
+06:10:59.3 |
HIP 26664 |
28.80 |
| 2026-10-05 00:00 |
05:41:52.79 |
+06:10:47.1 |
HIP 26664 |
28.52 |
| 2026-10-05 12:00 |
05:41:51.81 |
+06:10:34.9 |
HIP 26664 |
28.23 |
| 2026-10-06 00:00 |
05:41:50.81 |
+06:10:22.7 |
HIP 26664 |
27.94 |
| 2026-10-06 12:00 |
05:41:49.78 |
+06:10:10.5 |
HIP 26664 |
27.64 |
| 2026-10-07 00:00 |
05:41:48.72 |
+06:09:58.4 |
HIP 26664 |
27.34 |
| 2026-10-07 12:00 |
05:41:47.64 |
+06:09:46.2 |
HIP 26664 |
27.03 |
| 2026-10-08 00:00 |
05:41:46.54 |
+06:09:34.1 |
HIP 26664 |
26.72 |
| 2026-10-08 12:00 |
05:41:45.40 |
+06:09:22.0 |
HIP 26664 |
26.40 |
| 2026-10-09 00:00 |
05:41:44.25 |
+06:09:10.0 |
HIP 26664 |
26.08 |
| 2026-10-09 12:00 |
05:41:43.06 |
+06:08:57.9 |
HIP 26664 |
25.75 |
| 2026-10-10 00:00 |
05:41:41.86 |
+06:08:45.9 |
HIP 26664 |
25.41 |
| 2026-10-10 12:00 |
05:41:40.62 |
+06:08:33.9 |
HIP 26664 |
25.07 |
| 2026-10-11 00:00 |
05:41:39.37 |
+06:08:22.0 |
HIP 26664 |
24.73 |