メタデータ
| 項目 |
値 |
| Designation |
C/1975 T2 (Suzuki-Saigusa-Mori) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
1975-10-15T08:38:49.142400Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:29:24Z |
| Obs used |
112 |
| NEO |
- |
| M1 |
9.700 |
| K1 |
10.000 |
| PC |
0.030 |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
1975-10-31.0000000 |
| e |
0.98560140 |
| q (au) |
0.838053 |
| a (au) |
58.203770 |
| i (deg) |
118.232772 |
| Ω (om, deg) |
216.805399 |
| ω (w, deg) |
152.019697 |
| M (ma, deg) |
0.034714 |
等級
散乱 + 全体線形
$$
M_a = (9.537 + 2.320\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
9.537 |
| n |
2.320 |
| gf |
0.800 |
| gb |
-0.500 |
| k |
0.800 |
| 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) |
| 2026-03-26 00:00 |
14:55:08.35 |
-50:14:40.8 |
HIP 73164 |
20.38 |
| 2026-03-26 12:00 |
14:55:06.28 |
-50:14:45.5 |
HIP 73164 |
20.72 |
| 2026-03-27 00:00 |
14:55:04.19 |
-50:14:50.1 |
HIP 73164 |
21.06 |
| 2026-03-27 12:00 |
14:55:02.09 |
-50:14:54.5 |
HIP 73164 |
21.40 |
| 2026-03-28 00:00 |
14:54:59.98 |
-50:14:58.8 |
HIP 73164 |
21.75 |
| 2026-03-28 12:00 |
14:54:57.85 |
-50:15:03.0 |
HIP 73164 |
22.09 |
| 2026-03-29 00:00 |
14:54:55.70 |
-50:15:07.0 |
HIP 73164 |
22.44 |
| 2026-03-29 12:00 |
14:54:53.54 |
-50:15:10.9 |
HIP 73164 |
22.78 |
| 2026-03-30 00:00 |
14:54:51.37 |
-50:15:14.6 |
HIP 73164 |
23.13 |
| 2026-03-30 12:00 |
14:54:49.18 |
-50:15:18.2 |
HIP 73164 |
23.48 |
| 2026-03-31 00:00 |
14:54:46.97 |
-50:15:21.7 |
HIP 73164 |
23.84 |
| 2026-03-31 12:00 |
14:54:44.75 |
-50:15:25.0 |
HIP 73164 |
24.19 |
| 2026-04-01 00:00 |
14:54:42.52 |
-50:15:28.2 |
HIP 73164 |
24.55 |
| 2026-04-01 12:00 |
14:54:40.27 |
-50:15:31.2 |
HIP 73164 |
24.91 |
| 2026-04-02 00:00 |
14:54:38.01 |
-50:15:34.1 |
HIP 73164 |
25.26 |
| 2026-04-02 12:00 |
14:54:35.74 |
-50:15:36.9 |
HIP 72732 |
25.60 |
| 2026-04-03 00:00 |
14:54:33.45 |
-50:15:39.5 |
HIP 72732 |
25.29 |
| 2026-04-03 12:00 |
14:54:31.15 |
-50:15:41.9 |
HIP 72732 |
24.99 |
| 2026-04-04 00:00 |
14:54:28.83 |
-50:15:44.3 |
HIP 72732 |
24.68 |
| 2026-04-04 12:00 |
14:54:26.51 |
-50:15:46.4 |
HIP 72732 |
24.36 |
| 2026-04-05 00:00 |
14:54:24.17 |
-50:15:48.5 |
HIP 72732 |
24.05 |
| 2026-04-05 12:00 |
14:54:21.81 |
-50:15:50.4 |
HIP 72732 |
23.74 |
| 2026-04-06 00:00 |
14:54:19.45 |
-50:15:52.1 |
HIP 72732 |
23.42 |
| 2026-04-06 12:00 |
14:54:17.07 |
-50:15:53.7 |
HIP 72732 |
23.11 |
| 2026-04-07 00:00 |
14:54:14.68 |
-50:15:55.2 |
HIP 72732 |
22.79 |
| 2026-04-07 12:00 |
14:54:12.28 |
-50:15:56.5 |
HIP 72732 |
22.47 |
| 2026-04-08 00:00 |
14:54:09.87 |
-50:15:57.7 |
HIP 72732 |
22.15 |
| 2026-04-08 12:00 |
14:54:07.44 |
-50:15:58.7 |
HIP 72732 |
21.83 |
| 2026-04-09 00:00 |
14:54:05.01 |
-50:15:59.6 |
HIP 72732 |
21.51 |
| 2026-04-09 12:00 |
14:54:02.56 |
-50:16:00.3 |
HIP 72732 |
21.19 |
| 2026-04-10 00:00 |
14:54:00.10 |
-50:16:00.9 |
HIP 72732 |
20.87 |
| 2026-04-10 12:00 |
14:53:57.63 |
-50:16:01.3 |
HIP 72732 |
20.55 |
| 2026-04-11 00:00 |
14:53:55.15 |
-50:16:01.6 |
HIP 72732 |
20.23 |
| 2026-04-11 12:00 |
14:53:52.66 |
-50:16:01.8 |
HIP 72732 |
19.91 |
| 2026-04-12 00:00 |
14:53:50.16 |
-50:16:01.8 |
HIP 72732 |
19.59 |
| 2026-04-12 12:00 |
14:53:47.65 |
-50:16:01.7 |
HIP 72732 |
19.27 |
| 2026-04-13 00:00 |
14:53:45.13 |
-50:16:01.4 |
HIP 72732 |
18.95 |
| 2026-04-13 12:00 |
14:53:42.60 |
-50:16:00.9 |
HIP 72732 |
18.63 |
| 2026-04-14 00:00 |
14:53:40.06 |
-50:16:00.4 |
HIP 72732 |
18.31 |
| 2026-04-14 12:00 |
14:53:37.51 |
-50:15:59.6 |
HIP 72732 |
17.99 |
| 2026-04-15 00:00 |
14:53:34.96 |
-50:15:58.8 |
HIP 72732 |
17.68 |
| 2026-04-15 12:00 |
14:53:32.39 |
-50:15:57.7 |
HIP 72732 |
17.36 |
| 2026-04-16 00:00 |
14:53:29.81 |
-50:15:56.6 |
HIP 72732 |
17.05 |