メタデータ
| 項目 |
値 |
| Designation |
C/2001 RX14 (LINEAR) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2003-01-18T16:52:12.123840Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:30:11Z |
| Obs used |
3261 |
| NEO |
- |
| M1 |
9.700 |
| K1 |
6.500 |
| PC |
0.030 |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2002-12-31.0000000 |
| e |
1.00160630 |
| q (au) |
2.057562 |
| a (au) |
-1280.933457 |
| i (deg) |
30.574145 |
| Ω (om, deg) |
14.169847 |
| ω (w, deg) |
121.485659 |
| M (ma, deg) |
-0.000402 |
等級
散乱 + 全体線形
$$
M_a = (7.044 + 3.284\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
7.044 |
| n |
3.284 |
| gf |
0.998 |
| gb |
-0.598 |
| k |
0.998 |
| δ90 |
9.993 |
| 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 |
19:56:45.88 |
-52:02:45.1 |
HIP 98278 |
15.13 |
| 2026-09-20 12:00 |
19:56:44.01 |
-52:02:29.6 |
HIP 98278 |
15.23 |
| 2026-09-21 00:00 |
19:56:42.16 |
-52:02:13.9 |
HIP 98278 |
15.34 |
| 2026-09-21 12:00 |
19:56:40.35 |
-52:01:58.1 |
HIP 98278 |
15.45 |
| 2026-09-22 00:00 |
19:56:38.57 |
-52:01:42.2 |
HIP 98278 |
15.56 |
| 2026-09-22 12:00 |
19:56:36.82 |
-52:01:26.1 |
HIP 98278 |
15.67 |
| 2026-09-23 00:00 |
19:56:35.10 |
-52:01:09.9 |
HIP 98278 |
15.79 |
| 2026-09-23 12:00 |
19:56:33.42 |
-52:00:53.6 |
HIP 98278 |
15.91 |
| 2026-09-24 00:00 |
19:56:31.78 |
-52:00:37.1 |
HIP 98278 |
16.03 |
| 2026-09-24 12:00 |
19:56:30.16 |
-52:00:20.6 |
HIP 98278 |
16.16 |
| 2026-09-25 00:00 |
19:56:28.58 |
-52:00:03.9 |
HIP 98278 |
16.29 |
| 2026-09-25 12:00 |
19:56:27.04 |
-51:59:47.0 |
HIP 98278 |
16.41 |
| 2026-09-26 00:00 |
19:56:25.53 |
-51:59:30.1 |
HIP 98278 |
16.55 |
| 2026-09-26 12:00 |
19:56:24.05 |
-51:59:13.0 |
HIP 98278 |
16.68 |
| 2026-09-27 00:00 |
19:56:22.60 |
-51:58:55.9 |
HIP 98278 |
16.81 |
| 2026-09-27 12:00 |
19:56:21.19 |
-51:58:38.6 |
HIP 98278 |
16.94 |
| 2026-09-28 00:00 |
19:56:19.82 |
-51:58:21.2 |
HIP 98278 |
17.08 |
| 2026-09-28 12:00 |
19:56:18.48 |
-51:58:03.6 |
HIP 98278 |
17.22 |
| 2026-09-29 00:00 |
19:56:17.17 |
-51:57:46.0 |
HIP 98278 |
17.35 |
| 2026-09-29 12:00 |
19:56:15.90 |
-51:57:28.3 |
HIP 98278 |
17.49 |
| 2026-09-30 00:00 |
19:56:14.66 |
-51:57:10.4 |
HIP 98278 |
17.63 |
| 2026-09-30 12:00 |
19:56:13.46 |
-51:56:52.4 |
HIP 98278 |
17.77 |
| 2026-10-01 00:00 |
19:56:12.29 |
-51:56:34.3 |
HIP 98278 |
17.91 |
| 2026-10-01 12:00 |
19:56:11.16 |
-51:56:16.2 |
HIP 98278 |
18.05 |
| 2026-10-02 00:00 |
19:56:10.06 |
-51:55:57.9 |
HIP 98278 |
18.19 |
| 2026-10-02 12:00 |
19:56:09.00 |
-51:55:39.5 |
HIP 98278 |
18.33 |
| 2026-10-03 00:00 |
19:56:07.98 |
-51:55:21.0 |
HIP 98278 |
18.47 |
| 2026-10-03 12:00 |
19:56:06.98 |
-51:55:02.4 |
HIP 98278 |
18.60 |
| 2026-10-04 00:00 |
19:56:06.03 |
-51:54:43.7 |
HIP 98278 |
18.74 |
| 2026-10-04 12:00 |
19:56:05.11 |
-51:54:24.9 |
HIP 98278 |
18.88 |
| 2026-10-05 00:00 |
19:56:04.22 |
-51:54:06.0 |
HIP 98278 |
19.02 |
| 2026-10-05 12:00 |
19:56:03.37 |
-51:53:47.0 |
HIP 98278 |
19.16 |
| 2026-10-06 00:00 |
19:56:02.56 |
-51:53:27.9 |
HIP 98278 |
19.30 |
| 2026-10-06 12:00 |
19:56:01.78 |
-51:53:08.7 |
HIP 98278 |
19.44 |
| 2026-10-07 00:00 |
19:56:01.04 |
-51:52:49.5 |
HIP 98278 |
19.57 |
| 2026-10-07 12:00 |
19:56:00.34 |
-51:52:30.1 |
HIP 98278 |
19.71 |
| 2026-10-08 00:00 |
19:55:59.67 |
-51:52:10.6 |
HIP 98278 |
19.85 |
| 2026-10-08 12:00 |
19:55:59.04 |
-51:51:51.1 |
HIP 98278 |
19.98 |
| 2026-10-09 00:00 |
19:55:58.44 |
-51:51:31.5 |
HIP 98278 |
20.12 |
| 2026-10-09 12:00 |
19:55:57.88 |
-51:51:11.8 |
HIP 98278 |
20.26 |
| 2026-10-10 00:00 |
19:55:57.36 |
-51:50:52.0 |
HIP 98278 |
20.39 |
| 2026-10-10 12:00 |
19:55:56.87 |
-51:50:32.1 |
HIP 98278 |
20.52 |
| 2026-10-11 00:00 |
19:55:56.42 |
-51:50:12.1 |
HIP 98278 |
20.66 |