メタデータ
| 項目 |
値 |
| Designation |
C/1999 T3 (LINEAR) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2000-08-30T08:59:22.329600Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:30:02Z |
| Obs used |
227 |
| NEO |
- |
| M1 |
10.800 |
| 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) |
2000-02-09.0000000 |
| e |
1.00305659 |
| q (au) |
5.368403 |
| a (au) |
-1756.337617 |
| i (deg) |
104.759114 |
| Ω (om, deg) |
223.515431 |
| ω (w, deg) |
211.096887 |
| M (ma, deg) |
-0.002723 |
等級
散乱 + 全体線形
$$
M_a = (5.494 + 4.236\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
5.494 |
| n |
4.236 |
| gf |
0.998 |
| gb |
-0.963 |
| k |
1.000 |
| δ90 |
9.999 |
| 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 |
14:38:37.73 |
-24:26:57.5 |
HIP 71450 |
26.20 |
| 2026-09-20 12:00 |
14:38:39.71 |
-24:26:58.8 |
HIP 71450 |
26.65 |
| 2026-09-21 00:00 |
14:38:41.71 |
-24:27:00.3 |
HIP 71450 |
27.10 |
| 2026-09-21 12:00 |
14:38:43.72 |
-24:27:01.9 |
HIP 71702 |
27.49 |
| 2026-09-22 00:00 |
14:38:45.74 |
-24:27:03.6 |
HIP 71702 |
27.21 |
| 2026-09-22 12:00 |
14:38:47.78 |
-24:27:05.4 |
HIP 71702 |
26.94 |
| 2026-09-23 00:00 |
14:38:49.84 |
-24:27:07.3 |
HIP 71702 |
26.67 |
| 2026-09-23 12:00 |
14:38:51.91 |
-24:27:09.3 |
HIP 71702 |
26.41 |
| 2026-09-24 00:00 |
14:38:54.00 |
-24:27:11.5 |
HIP 71702 |
26.15 |
| 2026-09-24 12:00 |
14:38:56.10 |
-24:27:13.7 |
HIP 71702 |
25.90 |
| 2026-09-25 00:00 |
14:38:58.21 |
-24:27:16.0 |
HIP 71702 |
25.65 |
| 2026-09-25 12:00 |
14:39:00.35 |
-24:27:18.4 |
HIP 71702 |
25.41 |
| 2026-09-26 00:00 |
14:39:02.49 |
-24:27:21.0 |
HIP 71702 |
25.18 |
| 2026-09-26 12:00 |
14:39:04.65 |
-24:27:23.6 |
HIP 71702 |
24.95 |
| 2026-09-27 00:00 |
14:39:06.82 |
-24:27:26.3 |
HIP 71702 |
24.73 |
| 2026-09-27 12:00 |
14:39:09.01 |
-24:27:29.2 |
HIP 71702 |
24.52 |
| 2026-09-28 00:00 |
14:39:11.21 |
-24:27:32.1 |
HIP 71702 |
24.32 |
| 2026-09-28 12:00 |
14:39:13.42 |
-24:27:35.1 |
HIP 71702 |
24.13 |
| 2026-09-29 00:00 |
14:39:15.65 |
-24:27:38.3 |
HIP 71702 |
23.94 |
| 2026-09-29 12:00 |
14:39:17.89 |
-24:27:41.5 |
HIP 71702 |
23.77 |
| 2026-09-30 00:00 |
14:39:20.14 |
-24:27:44.8 |
HIP 71702 |
23.60 |
| 2026-09-30 12:00 |
14:39:22.41 |
-24:27:48.3 |
HIP 71702 |
23.45 |
| 2026-10-01 00:00 |
14:39:24.69 |
-24:27:51.8 |
HIP 71702 |
23.31 |
| 2026-10-01 12:00 |
14:39:26.99 |
-24:27:55.4 |
HIP 71702 |
23.18 |
| 2026-10-02 00:00 |
14:39:29.29 |
-24:27:59.1 |
HIP 71702 |
23.06 |
| 2026-10-02 12:00 |
14:39:31.61 |
-24:28:03.0 |
HIP 71702 |
22.95 |
| 2026-10-03 00:00 |
14:39:33.94 |
-24:28:06.9 |
HIP 71702 |
22.86 |
| 2026-10-03 12:00 |
14:39:36.28 |
-24:28:10.9 |
HIP 71702 |
22.78 |
| 2026-10-04 00:00 |
14:39:38.64 |
-24:28:15.0 |
HIP 71702 |
22.71 |
| 2026-10-04 12:00 |
14:39:41.00 |
-24:28:19.2 |
HIP 71702 |
22.65 |
| 2026-10-05 00:00 |
14:39:43.38 |
-24:28:23.5 |
HIP 71702 |
22.61 |
| 2026-10-05 12:00 |
14:39:45.77 |
-24:28:27.9 |
HIP 71702 |
22.59 |
| 2026-10-06 00:00 |
14:39:48.17 |
-24:28:32.4 |
HIP 71702 |
22.58 |
| 2026-10-06 12:00 |
14:39:50.59 |
-24:28:37.0 |
HIP 71702 |
22.58 |
| 2026-10-07 00:00 |
14:39:53.01 |
-24:28:41.6 |
HIP 71702 |
22.60 |
| 2026-10-07 12:00 |
14:39:55.45 |
-24:28:46.4 |
HIP 71702 |
22.63 |
| 2026-10-08 00:00 |
14:39:57.89 |
-24:28:51.2 |
HIP 71702 |
22.68 |
| 2026-10-08 12:00 |
14:40:00.35 |
-24:28:56.2 |
HIP 71702 |
22.75 |
| 2026-10-09 00:00 |
14:40:02.82 |
-24:29:01.2 |
HIP 71702 |
22.83 |
| 2026-10-09 12:00 |
14:40:05.29 |
-24:29:06.4 |
HIP 71702 |
22.92 |
| 2026-10-10 00:00 |
14:40:07.78 |
-24:29:11.6 |
HIP 71702 |
23.03 |
| 2026-10-10 12:00 |
14:40:10.28 |
-24:29:16.9 |
HIP 71702 |
23.16 |
| 2026-10-11 00:00 |
14:40:12.78 |
-24:29:22.3 |
HIP 71702 |
23.30 |