メタデータ
| 項目 |
値 |
| Designation |
P/2022 R1 (PANSTARRS) |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2023-10-12T05:04:08.492160Z |
| Orbit solution date (soln_date, UTC) |
2024-06-21T13:42:19Z |
| Obs used |
50 |
| NEO |
- |
| M1 |
15.500 |
| K1 |
4.500 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2022-09-01T08:30:18.777600Z |
| Discovery magnitude (MPC) |
20.80 w |
| Discovery observatory (MPC) |
F52 · Pan-STARRS 2, Haleakala |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2022-12-12.0000000 |
| e |
0.50312159 |
| q (au) |
3.569380 |
| a (au) |
7.183609 |
| i (deg) |
7.408376 |
| Ω (om, deg) |
176.174861 |
| ω (w, deg) |
222.612489 |
| M (ma, deg) |
344.427252 |
等級
散乱 + 全体線形
$$
M_a = (14.019 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
14.019 |
| n |
2.000 |
| gf |
1.000 |
| gb |
-1.000 |
| k |
1.000 |
| 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
ファインディングチャート
天体暦
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-06-01 00:00 |
09:19:15.95 |
+12:03:40.3 |
HIP 45695 |
16.18 |
| 2026-06-01 12:00 |
09:19:29.21 |
+12:03:03.4 |
HIP 45695 |
18.00 |
| 2026-06-02 00:00 |
09:19:42.56 |
+12:02:25.9 |
HIP 45855 |
18.81 |
| 2026-06-02 12:00 |
09:19:56.00 |
+12:01:47.8 |
HIP 45855 |
15.48 |
| 2026-06-03 00:00 |
09:20:09.54 |
+12:01:09.1 |
HIP 45855 |
12.12 |
| 2026-06-03 12:00 |
09:20:23.16 |
+12:00:29.8 |
HIP 45855 |
8.75 |
| 2026-06-04 00:00 |
09:20:36.88 |
+11:59:49.9 |
HIP 45855 |
5.40 |
| 2026-06-04 12:00 |
09:20:50.68 |
+11:59:09.5 |
HIP 45855 |
2.22 |
| 2026-06-05 00:00 |
09:21:04.58 |
+11:58:28.4 |
HIP 45855 |
2.12 |
| 2026-06-05 12:00 |
09:21:18.56 |
+11:57:46.8 |
HIP 45855 |
5.32 |
| 2026-06-06 00:00 |
09:21:32.63 |
+11:57:04.5 |
HIP 45855 |
8.77 |
| 2026-06-06 12:00 |
09:21:46.79 |
+11:56:21.7 |
HIP 45855 |
12.27 |
| 2026-06-07 00:00 |
09:22:01.04 |
+11:55:38.3 |
HIP 45855 |
15.82 |
| 2026-06-07 12:00 |
09:22:15.37 |
+11:54:54.3 |
HIP 45855 |
19.39 |
| 2026-06-08 00:00 |
09:22:29.78 |
+11:54:09.8 |
HIP 45855 |
22.98 |
| 2026-06-08 12:00 |
09:22:44.28 |
+11:53:24.7 |
HIP 46109 |
21.58 |
| 2026-06-09 00:00 |
09:22:58.86 |
+11:52:39.0 |
HIP 46109 |
17.99 |
| 2026-06-09 12:00 |
09:23:13.53 |
+11:51:52.7 |
HIP 46109 |
14.42 |
| 2026-06-10 00:00 |
09:23:28.28 |
+11:51:05.9 |
HIP 46109 |
10.88 |
| 2026-06-10 12:00 |
09:23:43.11 |
+11:50:18.5 |
HIP 46109 |
7.48 |
| 2026-06-11 00:00 |
09:23:58.02 |
+11:49:30.5 |
HIP 46109 |
4.58 |
| 2026-06-11 12:00 |
09:24:13.01 |
+11:48:42.0 |
HIP 46109 |
3.75 |
| 2026-06-12 00:00 |
09:24:28.08 |
+11:47:52.9 |
HIP 46109 |
5.96 |
| 2026-06-12 12:00 |
09:24:43.23 |
+11:47:03.2 |
HIP 46109 |
9.27 |
| 2026-06-13 00:00 |
09:24:58.46 |
+11:46:13.0 |
HIP 46109 |
12.87 |
| 2026-06-13 12:00 |
09:25:13.76 |
+11:45:22.3 |
HIP 46109 |
16.60 |
| 2026-06-14 00:00 |
09:25:29.15 |
+11:44:31.0 |
HIP 46109 |
20.38 |
| 2026-06-14 12:00 |
09:25:44.60 |
+11:43:39.1 |
HIP 46109 |
24.21 |
| 2026-06-15 00:00 |
09:26:00.14 |
+11:42:46.7 |
HIP 46109 |
28.08 |
| 2026-06-15 12:00 |
09:26:15.74 |
+11:41:53.8 |
HIP 46398 |
26.78 |
| 2026-06-16 00:00 |
09:26:31.42 |
+11:41:00.3 |
HIP 46398 |
23.29 |
| 2026-06-16 12:00 |
09:26:47.18 |
+11:40:06.3 |
HIP 46398 |
19.96 |
| 2026-06-17 00:00 |
09:27:03.00 |
+11:39:11.7 |
HIP 46398 |
16.87 |
| 2026-06-17 12:00 |
09:27:18.90 |
+11:38:16.6 |
HIP 46398 |
14.22 |
| 2026-06-18 00:00 |
09:27:34.87 |
+11:37:21.0 |
HIP 46398 |
12.32 |
| 2026-06-18 12:00 |
09:27:50.90 |
+11:36:24.9 |
HIP 46462 |
10.03 |
| 2026-06-19 00:00 |
09:28:07.01 |
+11:35:28.2 |
HIP 46462 |
6.50 |
| 2026-06-19 12:00 |
09:28:23.18 |
+11:34:31.0 |
HIP 46462 |
4.10 |
| 2026-06-20 00:00 |
09:28:39.42 |
+11:33:33.3 |
HIP 46462 |
4.97 |
| 2026-06-20 12:00 |
09:28:55.72 |
+11:32:35.1 |
HIP 46462 |
8.15 |
| 2026-06-21 00:00 |
09:29:12.09 |
+11:31:36.4 |
HIP 46462 |
11.93 |
| 2026-06-21 12:00 |
09:29:28.53 |
+11:30:37.2 |
HIP 46462 |
15.90 |
| 2026-06-22 00:00 |
09:29:45.03 |
+11:29:37.5 |
HIP 46462 |
19.96 |