メタデータ
| 項目 |
値 |
| Designation |
C/1999 T2 (LINEAR) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2000-11-24T11:11:44.891520Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:30:02Z |
| Obs used |
1021 |
| NEO |
- |
| M1 |
8.400 |
| K1 |
8.000 |
| PC |
0.030 |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2000-10-10.0000000 |
| e |
1.00201162 |
| q (au) |
3.037404 |
| a (au) |
-1509.929133 |
| i (deg) |
111.002049 |
| Ω (om, deg) |
14.878823 |
| ω (w, deg) |
104.667943 |
| M (ma, deg) |
-0.000764 |
等級
散乱 + 全体線形
$$
M_a = (6.101 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
6.101 |
| n |
6.000 |
| gf |
0.999 |
| gb |
-0.731 |
| 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
天体暦
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-06-01 00:00 |
07:53:02.58 |
-45:12:24.7 |
HIP 38510 |
1.79 |
| 2026-06-01 12:00 |
07:53:04.83 |
-45:12:01.9 |
HIP 38510 |
1.66 |
| 2026-06-02 00:00 |
07:53:07.11 |
-45:11:39.3 |
HIP 38510 |
1.69 |
| 2026-06-02 12:00 |
07:53:09.40 |
-45:11:17.0 |
HIP 38510 |
1.89 |
| 2026-06-03 00:00 |
07:53:11.72 |
-45:10:54.9 |
HIP 38510 |
2.21 |
| 2026-06-03 12:00 |
07:53:14.05 |
-45:10:33.0 |
HIP 38510 |
2.60 |
| 2026-06-04 00:00 |
07:53:16.40 |
-45:10:11.4 |
HIP 38510 |
3.04 |
| 2026-06-04 12:00 |
07:53:18.77 |
-45:09:50.0 |
HIP 38510 |
3.51 |
| 2026-06-05 00:00 |
07:53:21.17 |
-45:09:28.8 |
HIP 38510 |
4.00 |
| 2026-06-05 12:00 |
07:53:23.58 |
-45:09:07.8 |
HIP 38510 |
4.49 |
| 2026-06-06 00:00 |
07:53:26.01 |
-45:08:47.1 |
HIP 38510 |
5.00 |
| 2026-06-06 12:00 |
07:53:28.45 |
-45:08:26.7 |
HIP 38510 |
5.52 |
| 2026-06-07 00:00 |
07:53:30.92 |
-45:08:06.4 |
HIP 38510 |
6.04 |
| 2026-06-07 12:00 |
07:53:33.41 |
-45:07:46.4 |
HIP 38510 |
6.56 |
| 2026-06-08 00:00 |
07:53:35.91 |
-45:07:26.7 |
HIP 38510 |
7.09 |
| 2026-06-08 12:00 |
07:53:38.43 |
-45:07:07.1 |
HIP 38510 |
7.61 |
| 2026-06-09 00:00 |
07:53:40.97 |
-45:06:47.9 |
HIP 38510 |
8.14 |
| 2026-06-09 12:00 |
07:53:43.53 |
-45:06:28.8 |
HIP 38510 |
8.68 |
| 2026-06-10 00:00 |
07:53:46.10 |
-45:06:10.1 |
HIP 38510 |
9.21 |
| 2026-06-10 12:00 |
07:53:48.70 |
-45:05:51.5 |
HIP 38510 |
9.74 |
| 2026-06-11 00:00 |
07:53:51.31 |
-45:05:33.3 |
HIP 38510 |
10.28 |
| 2026-06-11 12:00 |
07:53:53.93 |
-45:05:15.2 |
HIP 38510 |
10.81 |
| 2026-06-12 00:00 |
07:53:56.58 |
-45:04:57.4 |
HIP 38510 |
11.35 |
| 2026-06-12 12:00 |
07:53:59.23 |
-45:04:39.9 |
HIP 38510 |
11.89 |
| 2026-06-13 00:00 |
07:54:01.91 |
-45:04:22.6 |
HIP 38510 |
12.42 |
| 2026-06-13 12:00 |
07:54:04.60 |
-45:04:05.6 |
HIP 38510 |
12.96 |
| 2026-06-14 00:00 |
07:54:07.31 |
-45:03:48.8 |
HIP 38510 |
13.50 |
| 2026-06-14 12:00 |
07:54:10.03 |
-45:03:32.3 |
HIP 38510 |
14.04 |
| 2026-06-15 00:00 |
07:54:12.77 |
-45:03:16.1 |
HIP 38592 |
14.40 |
| 2026-06-15 12:00 |
07:54:15.53 |
-45:03:00.1 |
HIP 38592 |
14.69 |
| 2026-06-16 00:00 |
07:54:18.30 |
-45:02:44.4 |
HIP 38592 |
15.00 |
| 2026-06-16 12:00 |
07:54:21.08 |
-45:02:28.9 |
HIP 38592 |
15.31 |
| 2026-06-17 00:00 |
07:54:23.88 |
-45:02:13.7 |
HIP 38592 |
15.64 |
| 2026-06-17 12:00 |
07:54:26.69 |
-45:01:58.7 |
HIP 38592 |
15.97 |
| 2026-06-18 00:00 |
07:54:29.52 |
-45:01:44.1 |
HIP 38592 |
16.31 |
| 2026-06-18 12:00 |
07:54:32.36 |
-45:01:29.7 |
HIP 38592 |
16.66 |
| 2026-06-19 00:00 |
07:54:35.21 |
-45:01:15.5 |
HIP 38592 |
17.02 |
| 2026-06-19 12:00 |
07:54:38.08 |
-45:01:01.6 |
HIP 38592 |
17.38 |
| 2026-06-20 00:00 |
07:54:40.96 |
-45:00:48.0 |
HIP 38592 |
17.75 |
| 2026-06-20 12:00 |
07:54:43.86 |
-45:00:34.7 |
HIP 38592 |
18.13 |
| 2026-06-21 00:00 |
07:54:46.76 |
-45:00:21.6 |
HIP 38592 |
18.51 |
| 2026-06-21 12:00 |
07:54:49.68 |
-45:00:08.8 |
HIP 38592 |
18.90 |
| 2026-06-22 00:00 |
07:54:52.61 |
-44:59:56.3 |
HIP 38592 |
19.29 |