メタデータ
| 項目 |
値 |
| Designation |
C/2002 H2 (LINEAR) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2002-03-23T09:48:55.414080Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:30:15Z |
| Obs used |
369 |
| NEO |
- |
| M1 |
13.000 |
| K1 |
5.250 |
| PC |
- |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2002-05-22.0000000 |
| e |
0.99406539 |
| q (au) |
1.634840 |
| a (au) |
275.475363 |
| i (deg) |
110.501113 |
| Ω (om, deg) |
269.002033 |
| ω (w, deg) |
20.419619 |
| M (ma, deg) |
0.012846 |
等級
散乱 + 全体線形
$$
M_a = (11.548 + 3.263\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
11.548 |
| n |
3.263 |
| gf |
0.800 |
| gb |
-0.500 |
| k |
1.000 |
| δ90 |
1.000 |
| 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
天体暦
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-09-20 00:00 |
06:02:05.54 |
+23:57:55.3 |
HIP 28597 |
2.31 |
| 2026-09-20 12:00 |
06:02:05.62 |
+23:57:54.2 |
HIP 28597 |
2.28 |
| 2026-09-21 00:00 |
06:02:05.67 |
+23:57:53.1 |
HIP 28597 |
2.26 |
| 2026-09-21 12:00 |
06:02:05.70 |
+23:57:52.0 |
HIP 28597 |
2.24 |
| 2026-09-22 00:00 |
06:02:05.71 |
+23:57:50.8 |
HIP 28597 |
2.23 |
| 2026-09-22 12:00 |
06:02:05.69 |
+23:57:49.7 |
HIP 28597 |
2.21 |
| 2026-09-23 00:00 |
06:02:05.64 |
+23:57:48.6 |
HIP 28597 |
2.20 |
| 2026-09-23 12:00 |
06:02:05.57 |
+23:57:47.5 |
HIP 28597 |
2.19 |
| 2026-09-24 00:00 |
06:02:05.48 |
+23:57:46.4 |
HIP 28597 |
2.18 |
| 2026-09-24 12:00 |
06:02:05.36 |
+23:57:45.2 |
HIP 28597 |
2.17 |
| 2026-09-25 00:00 |
06:02:05.22 |
+23:57:44.1 |
HIP 28597 |
2.17 |
| 2026-09-25 12:00 |
06:02:05.05 |
+23:57:43.0 |
HIP 28597 |
2.17 |
| 2026-09-26 00:00 |
06:02:04.86 |
+23:57:41.9 |
HIP 28597 |
2.17 |
| 2026-09-26 12:00 |
06:02:04.64 |
+23:57:40.8 |
HIP 28597 |
2.18 |
| 2026-09-27 00:00 |
06:02:04.40 |
+23:57:39.7 |
HIP 28597 |
2.19 |
| 2026-09-27 12:00 |
06:02:04.13 |
+23:57:38.6 |
HIP 28597 |
2.21 |
| 2026-09-28 00:00 |
06:02:03.84 |
+23:57:37.5 |
HIP 28597 |
2.23 |
| 2026-09-28 12:00 |
06:02:03.53 |
+23:57:36.3 |
HIP 28597 |
2.26 |
| 2026-09-29 00:00 |
06:02:03.19 |
+23:57:35.2 |
HIP 28597 |
2.29 |
| 2026-09-29 12:00 |
06:02:02.83 |
+23:57:34.1 |
HIP 28597 |
2.33 |
| 2026-09-30 00:00 |
06:02:02.44 |
+23:57:33.0 |
HIP 28597 |
2.37 |
| 2026-09-30 12:00 |
06:02:02.02 |
+23:57:31.9 |
HIP 28597 |
2.43 |
| 2026-10-01 00:00 |
06:02:01.59 |
+23:57:30.8 |
HIP 28597 |
2.48 |
| 2026-10-01 12:00 |
06:02:01.12 |
+23:57:29.7 |
HIP 28597 |
2.55 |
| 2026-10-02 00:00 |
06:02:00.64 |
+23:57:28.6 |
HIP 28597 |
2.62 |
| 2026-10-02 12:00 |
06:02:00.13 |
+23:57:27.5 |
HIP 28597 |
2.70 |
| 2026-10-03 00:00 |
06:01:59.59 |
+23:57:26.4 |
HIP 28597 |
2.78 |
| 2026-10-03 12:00 |
06:01:59.03 |
+23:57:25.2 |
HIP 28597 |
2.88 |
| 2026-10-04 00:00 |
06:01:58.44 |
+23:57:24.1 |
HIP 28597 |
2.98 |
| 2026-10-04 12:00 |
06:01:57.83 |
+23:57:23.0 |
HIP 28597 |
3.09 |
| 2026-10-05 00:00 |
06:01:57.20 |
+23:57:21.9 |
HIP 28597 |
3.20 |
| 2026-10-05 12:00 |
06:01:56.54 |
+23:57:20.8 |
HIP 28597 |
3.33 |
| 2026-10-06 00:00 |
06:01:55.85 |
+23:57:19.7 |
HIP 28597 |
3.46 |
| 2026-10-06 12:00 |
06:01:55.15 |
+23:57:18.6 |
HIP 28597 |
3.60 |
| 2026-10-07 00:00 |
06:01:54.41 |
+23:57:17.5 |
HIP 28597 |
3.74 |
| 2026-10-07 12:00 |
06:01:53.65 |
+23:57:16.4 |
HIP 28597 |
3.89 |
| 2026-10-08 00:00 |
06:01:52.87 |
+23:57:15.3 |
HIP 28597 |
4.05 |
| 2026-10-08 12:00 |
06:01:52.07 |
+23:57:14.1 |
HIP 28597 |
4.22 |
| 2026-10-09 00:00 |
06:01:51.23 |
+23:57:13.0 |
HIP 28597 |
4.39 |
| 2026-10-09 12:00 |
06:01:50.38 |
+23:57:11.9 |
HIP 28597 |
4.57 |
| 2026-10-10 00:00 |
06:01:49.50 |
+23:57:10.8 |
HIP 28597 |
4.76 |
| 2026-10-10 12:00 |
06:01:48.59 |
+23:57:09.7 |
HIP 28597 |
4.95 |
| 2026-10-11 00:00 |
06:01:47.66 |
+23:57:08.6 |
HIP 28597 |
5.15 |